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Prof. Chunhui Li
Key Lab of Water and Sediment Science of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China

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0 Risk Assessment
0 Uncertainty
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RIVER BASIN
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water environmental capacity

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Journal article
Published: 01 February 2021 in Agriculture
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To solve the water use conflicts between agriculture and ecosystems in arid and semiarid areas, a multi-objective trade-off analysis method was applied to determine the environmental flows (e-flows) for the Yellow River Estuary, by considering the temporal and spatial discrepancies in water allocation. The results showed that during average years, a loss of 3.7 × 108 yuan was caused with every 1 × 108 m3 of e-flows under the baseline scenario. The crop growth stages of April–July are sensitive periods for water requirements, and over 5000 yuan/ha production losses were caused by prioritizing e-flows during this time in dry years. The stages from July–October require more water by ecosystems than other stages, and the recommended e-flows during this time accounted for 57% of the e-flows during the total year. Under scenarios 1–3, which represent the short-term, medium-term and long-term scenarios, more water resources were supplied by underground water and water diversion projects; however, alleviating the water use contradiction remained difficult in dry years. During average years, e-flows between 148 and 168 × 108 m3 are recommended to meet the ecological objectives of survival, reproduction and biological integrity of species for the Yellow River Estuary. The recommended e-flows in wet years could meet higher ecological objectives but still barely achieve the targets of sediment transport and ecosystem dynamic balance. In dry years, the economic losses may be beyond the acceptance of irrigation stakeholders if more water is allocated to improve e-flows. In this case, 71 × 108 yuan would be paid to them to compensate for their losses. This study proposes an e-flow recommendation framework that is economically and ecologically optimal in areas with irreconcilable water-use contradictions.

ACS Style

Aiping Pang; Fen Zhao; Chunhui Li; Yujun Yi. Rethinking Environmental Flows for the Yellow River Estuary by Trading Off Crop Yield and Ecological Benefits. Agriculture 2021, 11, 116 .

AMA Style

Aiping Pang, Fen Zhao, Chunhui Li, Yujun Yi. Rethinking Environmental Flows for the Yellow River Estuary by Trading Off Crop Yield and Ecological Benefits. Agriculture. 2021; 11 (2):116.

Chicago/Turabian Style

Aiping Pang; Fen Zhao; Chunhui Li; Yujun Yi. 2021. "Rethinking Environmental Flows for the Yellow River Estuary by Trading Off Crop Yield and Ecological Benefits." Agriculture 11, no. 2: 116.

Journal article
Published: 10 November 2020 in Resources, Conservation and Recycling
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In this paper, an interval two-stage fuzzy credibility constraint programming (ITSFCCP) method is proposed to deal with multiple uncertainties that can be expressed as fuzzy sets, discrete intervals and probability distributions, which can be used for effectively reflect natural and social complexities of relevant decision-making processes. Lincang city of Yunnan province, which is located in the southwest border of China, is employed as the demonstrative case. It is a frontier window and an important channel for China to face the "radiation center" of Southeast and South Asia. Also, it is the intersection of the Tropic of Cancer and the Geographic Water Distribution Line between the Pacific and Indian Oceans. The city's water resources system is particularly unique due to its connection with Myanmar. Considering multiple uncertainties and complexities of the existing water resources system in the city, ITSFCCP is developed to optimize the allocation of water resources. The objective function of the model is the maximization of economic benefits of the water resources system. Fuzzy sets, discrete intervals and probability distribution were introduced to represent the multiple uncertainties associated with the natural and social complexities. Credibility levels were adopted to solve the complexity of multi-ethnic human society in Lincang. The results showed that the model could effectively deal with the uncertainties and complexities of Lincang's water resources system, and reflect the trade-offs between the system benefits and risks.

ACS Style

Dongni Chen; Yanpeng Cai; Xuan Wang; Chunhui Li; Xinan Yin; Qiang Liu. An inexact modeling approach for supporting water resources allocation under natural and social complexities in a border city of China and Myanmar. Resources, Conservation and Recycling 2020, 168, 105245 .

AMA Style

Dongni Chen, Yanpeng Cai, Xuan Wang, Chunhui Li, Xinan Yin, Qiang Liu. An inexact modeling approach for supporting water resources allocation under natural and social complexities in a border city of China and Myanmar. Resources, Conservation and Recycling. 2020; 168 ():105245.

Chicago/Turabian Style

Dongni Chen; Yanpeng Cai; Xuan Wang; Chunhui Li; Xinan Yin; Qiang Liu. 2020. "An inexact modeling approach for supporting water resources allocation under natural and social complexities in a border city of China and Myanmar." Resources, Conservation and Recycling 168, no. : 105245.

Article
Published: 13 October 2020
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The Yellow River Basin is of great significance to China's economic and social development and ecological security. The Yellow River Basin is not only an important ecological barrier but also an important economic zone. In this paper, natural hydrological conditions were taken as a reference, a habitat simulation model of the key sections of the Yellow River was constructed based on the MIKE 21 model, and an ecological water requirement assessment method for river ecological integrity combined with habitat simulation and features of the hydrological reference group was established, which takes into account the survival and reproduction of indicator species. The suitable flow rates for the spawning period of Silurus lanzhouensis in Lanzhou and Xiaheyan and Cyprinus carpio in Toudaoguai, Longmen and Huayuankou were 350-720 m3/s, 350-600 m3/s, 150-500 m³/s, 260-400 m3/s, and 100-500 m³/s, respectively. Therefore, high pulse flow with a low flow peak should be guaranteed in mid- to late April. The peak flow should be at least approximately 1,000 m3/s to ensure that fish receive spawning signals, with a high pulse flow process occurring 1-2 times in May to June. The annual ecological water requirement of the Lanzhou, Xiaheyan, Toudaoguai, Longmen and Huayuankou sections was 9.1-11 ×109 m³, 6.3-10.4×109 m³, 3.8-8.2×109 m³, 4.7-11.3×109 m³ and 7.9-15.4×109 m³, respectively. The model quantitatively simulates the changes in ecological water requirement of indicator fishes in key sections of the Yellow River, and an effective and more realistic tool for ecological water requirement accounting of the Yellow River has been provided.

ACS Style

Fen Zhao; Chunhui Li; Wenxiu Shang; Xiaokang Zheng; Zoe Li; Xuan Wang; Qiang Liu; Wanyu Ma; Jiuhe Bu; Yujun Yi. Ecological water requirement accounting of the main stream of the Yellow River from the perspective of habitat conservation. 2020, 1 .

AMA Style

Fen Zhao, Chunhui Li, Wenxiu Shang, Xiaokang Zheng, Zoe Li, Xuan Wang, Qiang Liu, Wanyu Ma, Jiuhe Bu, Yujun Yi. Ecological water requirement accounting of the main stream of the Yellow River from the perspective of habitat conservation. . 2020; ():1.

Chicago/Turabian Style

Fen Zhao; Chunhui Li; Wenxiu Shang; Xiaokang Zheng; Zoe Li; Xuan Wang; Qiang Liu; Wanyu Ma; Jiuhe Bu; Yujun Yi. 2020. "Ecological water requirement accounting of the main stream of the Yellow River from the perspective of habitat conservation." , no. : 1.

Original article
Published: 24 September 2020 in Environmental Earth Sciences
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Urban flooding is increasingly pervasive, with the decreasing water area in cities and the dreadful impact on people. Therefore, it is necessary to carry out a quantitative evaluation of the area of urban water and analyze the threshold of the reasonable water ratio under different drainage scenarios. In this research, simulations were performed by using the Personal Computer Storm Water Management Model (PCSWMM), and the model parameter calibration method was based on the runoff coefficient as a contribution to meeting the data-poor urban areas. Then, urban flood control standards were divided into four classes, and the rainfall scenario once in 200 years and historical maximum were selected to build future extreme inundation scenarios in the case study. Simultaneously, methods for the reasonable water area ratio estimation were decided. The cost-effectiveness of all possible solutions was examined across the two scenarios based on the assessment method. The results show that the range of reasonable ratios of the water area under traditional planning is 5.78–6.02% to meet the standard of urban drainage. Similarly, the range of reasonable ratios of water area under the LID (low impact development) plan combined with the sponge city concept is 5.63–5.88%.

ACS Style

Jiuhe Bu; Cong Peng; Chunhui Li; Xuan Wang; Yuan Zhang; Zhongwen Yang; Yanpeng Cai. A method for determining reasonable water area ratio based on flood risk and cost-effectiveness in Rainy City. Environmental Earth Sciences 2020, 79, 1 -15.

AMA Style

Jiuhe Bu, Cong Peng, Chunhui Li, Xuan Wang, Yuan Zhang, Zhongwen Yang, Yanpeng Cai. A method for determining reasonable water area ratio based on flood risk and cost-effectiveness in Rainy City. Environmental Earth Sciences. 2020; 79 (19):1-15.

Chicago/Turabian Style

Jiuhe Bu; Cong Peng; Chunhui Li; Xuan Wang; Yuan Zhang; Zhongwen Yang; Yanpeng Cai. 2020. "A method for determining reasonable water area ratio based on flood risk and cost-effectiveness in Rainy City." Environmental Earth Sciences 79, no. 19: 1-15.

Journal article
Published: 06 September 2020 in Journal of Cleaner Production
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With rapid economic development and population growth, pressure on the urban ecological environment is becoming intense, and the ecological environment carrying capacity is becoming an important issue. In this study, an index system combining the system dynamics (SD) and analytic hierarchy process (AHP) methods was constructed to assess the water ecological carrying capacity (WECC) of Changzhou city. In particular, the construction of the aquatic habitat and aquatic organism indexes were constructed and showed that water ecology health should be monitored along with the economy and population, which were focused in the past. Scientific research has neglected the internal spatial heterogeneity in administrative regions. Therefore, the SD and AHP models were applied to simulate the WECC of administrative regions and control units from 2010 to 2016. The simulation results show that the WECC of Liyang and Jintan counties reached a safe carrying capacity state, while the urban districts were in a critically overloaded state. In addition, the MIKE11 model was adopted to simulate the WECC under different inflow and the river connectivity index scenarios, and the optimal parameters for improving the WECC were obtained when the inflow recharge was 10 m3/s and the river connectivity index exceeded 60%. The prediction results from the optimized WECC showed that the WECC of all administrative areas and control units in Changzhou city reached the safe carrying capacity state. The results provide insights for improving the WECC of Changzhou city.

ACS Style

Jiuhe Bu; Chunhui Li; Xuan Wang; Yuan Zhang; Zhongwen Yang. Assessment and prediction of the water ecological carrying capacity in Changzhou city, China. Journal of Cleaner Production 2020, 277, 123988 .

AMA Style

Jiuhe Bu, Chunhui Li, Xuan Wang, Yuan Zhang, Zhongwen Yang. Assessment and prediction of the water ecological carrying capacity in Changzhou city, China. Journal of Cleaner Production. 2020; 277 ():123988.

Chicago/Turabian Style

Jiuhe Bu; Chunhui Li; Xuan Wang; Yuan Zhang; Zhongwen Yang. 2020. "Assessment and prediction of the water ecological carrying capacity in Changzhou city, China." Journal of Cleaner Production 277, no. : 123988.

Journal article
Published: 20 July 2020 in Sustainability
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To maintain sustainability and availability of regional water resources, appropriate integrated water resource management (IWRM) should be based on an assessment of water resource background and responses to regional development and utilization policies. The study proposed an assessment method combining hydrological variation analysis with a system dynamics (SD) model to support IWRM in the Baiyangdian Region, Northern China. Integrated variation analysis and attributive analysis were used to identify variation time and causes of runoff. Then, based on the current water resource situation, an accessibility analysis examined the possibility of achieving a water resources supply and demand balance of social economic development and the ecological environment within individual internal management. Finally, an SD model simulated water resource response to development policies to predict future policy impacts. Results showed that 65.18% of the impact on runoff was from human activities. Sustainability goals were impossible through internal management, but with eco-migration policies and 1 × 108 m3 inter-basin transferred water, it could quickly be achieved, and water ecosystem function could also be recovered. Establishment of the Xiong’an New Area necessitated introduction of integrated cross-basin management to protect the Baiyangdian Region from degradation of its ecological function. Our study proposed a new method for comparation of internal and cross-basin IWRM.

ACS Style

Zhen-Mei Liao; Yang-Yang Li; Wen-Shu Xiong; Xuan Wang; Dan Liu; Yun-Long Zhang; Chun-Hui Li. An In-Depth Assessment of Water Resource Responses to Regional Development Policies Using Hydrological Variation Analysis and System Dynamics Modeling. Sustainability 2020, 12, 5814 .

AMA Style

Zhen-Mei Liao, Yang-Yang Li, Wen-Shu Xiong, Xuan Wang, Dan Liu, Yun-Long Zhang, Chun-Hui Li. An In-Depth Assessment of Water Resource Responses to Regional Development Policies Using Hydrological Variation Analysis and System Dynamics Modeling. Sustainability. 2020; 12 (14):5814.

Chicago/Turabian Style

Zhen-Mei Liao; Yang-Yang Li; Wen-Shu Xiong; Xuan Wang; Dan Liu; Yun-Long Zhang; Chun-Hui Li. 2020. "An In-Depth Assessment of Water Resource Responses to Regional Development Policies Using Hydrological Variation Analysis and System Dynamics Modeling." Sustainability 12, no. 14: 5814.

Journal article
Published: 22 May 2020 in Sustainability
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With the development of industrial and agricultural production and the social economy, the demand for water resources has gradually increased. In this paper, based on the principles of system dynamics, a sustainable water resources utilization model with coupled water quality and quantity is established using STELLA software to assess the sustainable use of water resources. The model includes two modules: a water supply module and a water quality module. The water supply module includes four sub-systems: economy, population, water supply, and water demand. The water quality module consists of an environmental sub-system. The model is suitable for Tianjin, where water resources are scarce. Calibration is performed using data from 2013–2016, and verification is performed using data from 2017. The simulation results are good. In order to compare the sustainable use of water resources in different development scenarios in Tianjin for 2025, a sensitivity analysis is performed for each variable, and four decision variables are selected to establish four water resources use scenarios (Scenarios 1–4). The results show that, compared with scenario 1, water shortages in scenarios 2 and 3 are delayed. Scenario 4, with stable economic growth and environmental consideration, can effectively resolve the contradiction between water supply and demand in the future, and is more conducive to the improvement of water quality. Finally, based on the above research, measures to solve water resources problems are proposed, in order to provide a reference for the sustainable use of water resources and optimization of water resources allocation in Tianjin.

ACS Style

Yutong Tian; Chunhui Li; Yujun Yi; Xuan Wang; Anping Shu. Dynamic Model of a Sustainable Water Resources Utilization System with Coupled Water Quality and Quantity in Tianjin City. Sustainability 2020, 12, 4254 .

AMA Style

Yutong Tian, Chunhui Li, Yujun Yi, Xuan Wang, Anping Shu. Dynamic Model of a Sustainable Water Resources Utilization System with Coupled Water Quality and Quantity in Tianjin City. Sustainability. 2020; 12 (10):4254.

Chicago/Turabian Style

Yutong Tian; Chunhui Li; Yujun Yi; Xuan Wang; Anping Shu. 2020. "Dynamic Model of a Sustainable Water Resources Utilization System with Coupled Water Quality and Quantity in Tianjin City." Sustainability 12, no. 10: 4254.

Journal article
Published: 13 February 2020 in Ecotoxicology and Environmental Safety
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From the perspective of ecological risk, this study uses a multisource data method to search for global data, uses the acute and chronic ratio method to process the data, uses the species-sensitive distribution method to evaluate the ecological risk that petroleum hydrocarbons pose to aquatic organisms, and evaluates the ecological risk of the water environment in five Chinese water bodies. The results are as follows. First, in an aquatic ecosystem, the toxicological effects of petroleum hydrocarbons were found to be more obvious on consumers, and the sensitivity of fish was found to be higher than that of crustaceans. Second, the acutely lethal effects of petroleum hydrocarbons, fluorene, and benzo [a] pyrene on aquatic ecosystems were fitted by using the documentary method of multisource data collection and a Log-logistic curve. Third, in the case study evaluation of five Chinese water bodies, the ecological risks of polycyclic aromatic hydrocarbons were ranked (from low to high) as fluorene < benzo [a] pyrene. The ecological risk values of benzo [a] pyrene were all greater than 1. These risks should not be underestimated, and prevention and control work should be performed.

ACS Style

Yutong Tian; Yong Zeng; Chunhui Li; Xuan Wang; Qiang Liu; Yanwei Zhao. Ecological risk assessment of petroleum hydrocarbons on aquatic organisms based on multisource data. Ecotoxicology and Environmental Safety 2020, 192, 110262 .

AMA Style

Yutong Tian, Yong Zeng, Chunhui Li, Xuan Wang, Qiang Liu, Yanwei Zhao. Ecological risk assessment of petroleum hydrocarbons on aquatic organisms based on multisource data. Ecotoxicology and Environmental Safety. 2020; 192 ():110262.

Chicago/Turabian Style

Yutong Tian; Yong Zeng; Chunhui Li; Xuan Wang; Qiang Liu; Yanwei Zhao. 2020. "Ecological risk assessment of petroleum hydrocarbons on aquatic organisms based on multisource data." Ecotoxicology and Environmental Safety 192, no. : 110262.

Journal article
Published: 12 February 2020 in Water
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Economic development and increasing population density along the lower reaches of the Yellow river have challenged the river’s ability to meet human and ecological demand. The evaluation of the sustainability of water resources in the lower reaches of the Yellow River is of great significance for the achievement of high-quality development in the region. Based on an improved ecological footprint method considering soil water, the spatial and temporal evolution of the water resources ecological footprint and water resources carrying capacity and evaluates the utilization of water resources in the lower Yellow River are comprehensively evaluated. The results show that agricultural water consumption in the urban agglomerations in the lower reaches of the Yellow River occupies a major position in water consumption, accounting for more than 70%. In 2013–2017, the per capita water resources ecological footprint of the cities along the lower reaches of the Yellow River decreases every year, while the water resources carrying capacity is slightly fluctuating, but remains in a relatively stable state. The deficit situation has eased, falling by 54.52% in the past five years. The water use efficiency of the lower reaches of the Yellow River has increased every year, and the water resources conflict improved significantly, after the implementation of the new environmental policy in 2015. In terms of space, the cities with the smallest per capita ecological deficits include Zibo, Zhengzhou, and Laiwu City, and Dezhou, and Kaifeng and Binzhou City have the largest. Strict water resources management measures and water pollution prevention and control regulations should be formulated to improve the water use efficiency in these areas in order to solve the problem of water shortage.

ACS Style

Hui Li; Fen Zhao; Chunhui Li; Yujun Yi; Jiuhe Bu; Xuan Wang; Qiang Liu; Anping Shu. An Improved Ecological Footprint Method for Water Resources Utilization Assessment in the Cities. Water 2020, 12, 503 .

AMA Style

Hui Li, Fen Zhao, Chunhui Li, Yujun Yi, Jiuhe Bu, Xuan Wang, Qiang Liu, Anping Shu. An Improved Ecological Footprint Method for Water Resources Utilization Assessment in the Cities. Water. 2020; 12 (2):503.

Chicago/Turabian Style

Hui Li; Fen Zhao; Chunhui Li; Yujun Yi; Jiuhe Bu; Xuan Wang; Qiang Liu; Anping Shu. 2020. "An Improved Ecological Footprint Method for Water Resources Utilization Assessment in the Cities." Water 12, no. 2: 503.

Journal article
Published: 10 December 2019 in Science of The Total Environment
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The quantitative demand for composite flow of lead-acid battery (LAB) system varies with the requirement from human and affects the external environment. A framework with four stages [production of primary lead (PPL), fabrication and manufacturing (F&M), use and waste management and recycling (WMR)] and the external dynamic evaluating system was developed. The historical evolution characteristics of the system in the Chinese mainland from 1990 to 2016 was investigated. For material aspect, the consumption of secondary lead increased faster. All lead ore was consumed in PPL and reduced by the average rate 1.2%. The total lead emissions declined before they increased, that in F&M reduced the most with the average rate 29%; the share of scrap lead in waste LAB was vital, 63%-75%. For energy aspect, the energy consumption in WMR grew faster. And the external performance of energy flow grew, that in PPL reduced the fastest with the average rate 31%, and the share of that in use was approximately 80%. For value aspect, the value of lead in LABs increased faster. The influence from the value flow grew negatively. The index of WMR increased the positively and fastest by average rate 85%, and its proportion of use was largest, about 313%. The evolution of the key internal factors was analyzed, which have a great influence on the system. The overall change of large recycling rate, intermediate recycling rate and lead emissions rate of WMR grew. The lead emissions rates of F&M and PPL increased before decreasing. The reasons influencing the variation, such as policies and technologies, were analyzed.

ACS Style

Yanxu Yu; Jiansu Mao; Chunhui Li. Historical evolution of lead-acid battery system and its relationship with external environment based on the composite flow. Science of The Total Environment 2019, 707, 134746 .

AMA Style

Yanxu Yu, Jiansu Mao, Chunhui Li. Historical evolution of lead-acid battery system and its relationship with external environment based on the composite flow. Science of The Total Environment. 2019; 707 ():134746.

Chicago/Turabian Style

Yanxu Yu; Jiansu Mao; Chunhui Li. 2019. "Historical evolution of lead-acid battery system and its relationship with external environment based on the composite flow." Science of The Total Environment 707, no. : 134746.

Journal article
Published: 02 December 2019 in Journal of Hydrology
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Hydrological regimes play a vital role in regulating wetland structure and function, regarded as fundamental for wetland protection and restoration. This study explored vegetation response to water-level dynamics, simulated vegetation patterns, and the estimated evapotranspiration (ET) pertaining to different hydrological statuses. We used the vegetation dynamics simulation model and topography- and vegetation-based surface energy partitioning algorithms (TVET model) designed to estimate potential evaporation (PE) and potential transpiration (PT). Results indicated that: (i) Vegetation cover and water levels of different hydrological statuses can be used to deduce suitable water levels during flood, normal, and drought statuses (which were 1.23, 0.99, and 0.81 m, respectively, in the Ertou wetland). (ii) Dynamic vegetation simulations combined with optimal ecological water levels for Phragmites australis and Bolboschoenus planiculmis sustenance can be used to simulate vegetation pattern dynamics. Both P. australis and B. planiculmis expanded during droughts along with a reduction in open water, providing a potential increase in food availability for Siberian crane (Grus leucogeranus). (iii) Changes in vegetation patterns and characteristics (e.g., plant height and leaf area index (LAI)) that varied with water-level fluctuations inevitably altered potential evapotranspiration (PET) partitioning into PE and PT. These results indicate that subtle water-level fluctuations can dramatically alter vegetation patterns, characteristics, and ecological processes, subsequently affecting shallow wetland habitats. Further investigations are necessary to clarify wetland coupling mechanisms between hydrology, vegetation, and habitat. This will help address extreme drought and flooding events while also helping to assess wetland protection and restoration.

ACS Style

Qiang Liu; Jingling Liu; Haifei Liu; Liqiao Liang; Yanpeng Cai; Xuan Wang; Chunhui Li. Vegetation dynamics under water-level fluctuations: Implications for wetland restoration. Journal of Hydrology 2019, 581, 124418 .

AMA Style

Qiang Liu, Jingling Liu, Haifei Liu, Liqiao Liang, Yanpeng Cai, Xuan Wang, Chunhui Li. Vegetation dynamics under water-level fluctuations: Implications for wetland restoration. Journal of Hydrology. 2019; 581 ():124418.

Chicago/Turabian Style

Qiang Liu; Jingling Liu; Haifei Liu; Liqiao Liang; Yanpeng Cai; Xuan Wang; Chunhui Li. 2019. "Vegetation dynamics under water-level fluctuations: Implications for wetland restoration." Journal of Hydrology 581, no. : 124418.

Journal article
Published: 01 November 2019 in Journal of Hydrology
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ACS Style

Fen Zhao; Hui Li; Chunhui Li; Yanpeng Cai; Xuan Wang; Qiang Liu. Analyzing the influence of landscape pattern change on ecological water requirements in an arid/semiarid region of China. Journal of Hydrology 2019, 578, 1 .

AMA Style

Fen Zhao, Hui Li, Chunhui Li, Yanpeng Cai, Xuan Wang, Qiang Liu. Analyzing the influence of landscape pattern change on ecological water requirements in an arid/semiarid region of China. Journal of Hydrology. 2019; 578 ():1.

Chicago/Turabian Style

Fen Zhao; Hui Li; Chunhui Li; Yanpeng Cai; Xuan Wang; Qiang Liu. 2019. "Analyzing the influence of landscape pattern change on ecological water requirements in an arid/semiarid region of China." Journal of Hydrology 578, no. : 1.

Journal article
Published: 29 May 2019 in Sustainability
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The foreign trade sustainable development index system of Shenzhen City, including the three subsystems of environment, economy, and society, was constructed based on the theory of emergy analysis. The sustainable development of foreign trade in Shenzhen City from 2009 to 2016 was evaluated, and a detailed analysis of changes in the emergy of light and heavy industries was performed. The results showed that the scale of economy has been expanding, and the total volume of imports and exports has turned from a rise to a decline in 2013. The status of sustainable development is not optimistic. The transaction volume of energy is reduced, and the quality of people’s living environment is declining. The sustainable development of Shenzhen City is not perfect, but it is in a phase of gradual optimization. Moreover, the proportion of heavy industry in import and export trade is significantly higher than that of light industry, which has caused the outflow of energy to a certain extent. Therefore, to improve the level of foreign trade sustainable development, the efficiency of resource utilization must be improved. The import of energy products must be increased, the ability to cope with external interference must be strengthened, and the foreign trade industrial structure must be adjusted.

ACS Style

Yutong Tian; Shulian Xue; Chunhui Li; Hongli Liang; Jiansu Mao. Sustainable Developmental Evaluation of Foreign Trade Based on Emergy Analysis Method in Shenzhen City, China. Sustainability 2019, 11, 3035 .

AMA Style

Yutong Tian, Shulian Xue, Chunhui Li, Hongli Liang, Jiansu Mao. Sustainable Developmental Evaluation of Foreign Trade Based on Emergy Analysis Method in Shenzhen City, China. Sustainability. 2019; 11 (11):3035.

Chicago/Turabian Style

Yutong Tian; Shulian Xue; Chunhui Li; Hongli Liang; Jiansu Mao. 2019. "Sustainable Developmental Evaluation of Foreign Trade Based on Emergy Analysis Method in Shenzhen City, China." Sustainability 11, no. 11: 3035.

Journal article
Published: 08 March 2019 in Sustainability
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This study researched the individual and combined impacts of future LULC and climate changes on water balance in the upper reaches of the Beiluo River basin on the Loess Plateau of China, using the scenarios of RCP4.5 and 8.5 of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The climate data indicated that both precipitation and temperature increased at seasonal and annual scales from 2020 to 2050 under RCP4.5 and 8.5 scenarios. The future land use changes were predicted through the CA-Markov model. The land use predictions of 2025, 2035, and 2045 indicated rising forest areas with decreased agricultural land and grassland. In this study, three scenarios including only LULC change, only climate change, and combined climate and LULC change were established. The SWAT model was calibrated, validated, and used to simulate the water balance under the three scenarios. The results showed that increased rainfall and temperature may lead to increased runoff, water yield, and ET in spring, summer, and autumn and to decreased runoff, water yield, and ET in winter from 2020 to 2050. However, LULC change, compared with climate change, may have a smaller impact on the water balance. On an annual scale, runoff and water yield may gradually decrease, but ET may increase. The combined effects of both LULC and climate changes on water balance in the future were similar to the variation trend of climate changes alone at both annual and seasonal scales. The results obtained in this study provide further insight into the availability of future streamflow and can aid in water resource management planning in the study area.

ACS Style

Rui Yan; Yanpeng Cai; Chunhui Li; Xuan Wang; Qiang Liu. Hydrological Responses to Climate and Land Use Changes in a Watershed of the Loess Plateau, China. Sustainability 2019, 11, 1443 .

AMA Style

Rui Yan, Yanpeng Cai, Chunhui Li, Xuan Wang, Qiang Liu. Hydrological Responses to Climate and Land Use Changes in a Watershed of the Loess Plateau, China. Sustainability. 2019; 11 (5):1443.

Chicago/Turabian Style

Rui Yan; Yanpeng Cai; Chunhui Li; Xuan Wang; Qiang Liu. 2019. "Hydrological Responses to Climate and Land Use Changes in a Watershed of the Loess Plateau, China." Sustainability 11, no. 5: 1443.

Journal article
Published: 06 December 2018 in Sustainability
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Understanding changes in habitat quality and the driving forces of these changes at landscape scales is a critical part of effective ecosystem management. The present study investigated spatiotemporal habitat quality dynamics and related driving forces from 2005 to 2015 in the upper basin of Miyun Reservoir in North China by constructing an effective framework integrated InVEST and binary logistic regression models. This framework expanded the driving force analysis into an assessment of changes in habitat quality and intuitively verified the effectiveness of relevant environmental policies. The proposed method of combining the equidistant random sampling method and the method of introducing spatial lag variables in logistic regression equation can effectively solve spatial autocorrelation with a large enough number of sampling points. Overall, habitat quality improved during the study period. Spatially, a concentrated loss of habitat occurred in the southeastern part of the basin between the reservoir and mountainous areas, while other areas gradually recovered. Driving force analysis showed that lower elevation mountain land, gentle slopes, locations near rural land or roads, larger areas of grain cultivation, and areas with little population change had a higher likelihood of having changed in habitat quality in the upper basin of Miyun Reservoir. These results suggested that the present policy of protecting the ecosystem had a positive effect on improving habitat quality. In the future, the human activity management related to habitat quality needs to be strengthened. The present study would provide a reference for land use policy formulation and biodiversity conservation.

ACS Style

Shengjun Yan; Xuan Wang; Yanpeng Cai; Chunhui Li; Rui Yan; Guannan Cui; Zhifeng Yang. An Integrated Investigation of Spatiotemporal Habitat Quality Dynamics and Driving Forces in the Upper Basin of Miyun Reservoir, North China. Sustainability 2018, 10, 4625 .

AMA Style

Shengjun Yan, Xuan Wang, Yanpeng Cai, Chunhui Li, Rui Yan, Guannan Cui, Zhifeng Yang. An Integrated Investigation of Spatiotemporal Habitat Quality Dynamics and Driving Forces in the Upper Basin of Miyun Reservoir, North China. Sustainability. 2018; 10 (12):4625.

Chicago/Turabian Style

Shengjun Yan; Xuan Wang; Yanpeng Cai; Chunhui Li; Rui Yan; Guannan Cui; Zhifeng Yang. 2018. "An Integrated Investigation of Spatiotemporal Habitat Quality Dynamics and Driving Forces in the Upper Basin of Miyun Reservoir, North China." Sustainability 10, no. 12: 4625.

Review
Published: 13 November 2018 in Journal of Hydrology
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Green Infrastructure (GI) is considered to be an innovative stormwater management approach that offers numerous other environmental benefits including reduction in air pollution and climate change mitigation compared with conventional gray infrastructures, and it has been gradually accepted and used worldwide. This review mainly focuses on the hydrological aspect of GI and provides a summary of the knowledge about GI as a stormwater management alternative. In this review, we discuss the operating mechanisms of a few widely-used GIs in the aspect of stormwater management. We critically examine policies for promoting GI implementation in some countries, including the sponge city in China and water sensitive urban design (WSUD) in Australia, and review the effectiveness of GI on treating stormwater quantity in real world applications. In addition, we also used Bibliometrics to analyze the GI research trends and found GI has been popular in an increasing number of countries and regions, which China has the greatest future growth potential in GIs research. Moreover, many barriers impeding the further development of GI and strategies to overcome these barriers are also summarized. This review gathers knowledge from many sources to provide an overview of GI to better understand its mechanisms and applications, and to highlight the areas that require future study.

ACS Style

Chunhui Li; Cong Peng; Pen-Chi Chiang; Yanpeng Cai; Xuan Wang; Zhifeng Yang. Mechanisms and applications of green infrastructure practices for stormwater control: A review. Journal of Hydrology 2018, 568, 626 -637.

AMA Style

Chunhui Li, Cong Peng, Pen-Chi Chiang, Yanpeng Cai, Xuan Wang, Zhifeng Yang. Mechanisms and applications of green infrastructure practices for stormwater control: A review. Journal of Hydrology. 2018; 568 ():626-637.

Chicago/Turabian Style

Chunhui Li; Cong Peng; Pen-Chi Chiang; Yanpeng Cai; Xuan Wang; Zhifeng Yang. 2018. "Mechanisms and applications of green infrastructure practices for stormwater control: A review." Journal of Hydrology 568, no. : 626-637.

Journal article
Published: 20 September 2018 in Scientific Reports
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In this study, we proposed an approach to recommend environmental flows in highly regulated areas, considering the multiple time scales of hydrological processes and water requirements. Water resources were seasonally allocated to the agricultural sector using a benefit-maximizing model, based on water deficiency at different crop growth stages. The economic feedback was evaluated after securing different levels of initial environmental flows. The final environmental flows were recommended to maintain a balance between the ecosystem and irrigation water needs. A case study was applied in the Baiyangdian watershed, China. The results show that a benefit-maximizing model can reduce the total economic losses to the maximum potential, which contributes to alleviating water use conflicts between agriculture and the ecosystem. However, the environmental flows cannot be maintained without the sacrifice of production losses, except for in extremely wet years. Average environmental flows could be secured at around 3.1, 4.3 and 5.4 × 108 m3 in dry, average, and wet years, respectively, with less than 10% production loss. Additional water transfer projects, as well as economic compensation strategies, are suggested to meet both ecosystem and agricultural needs. The planned economic compensation during 2010–2015 was 16.3 × 108 Yuan, giving priority to securing environmental flows, and accounting for 7% of the total agricultural output value. The suggested amount of water resource transferred by the South-to-North Transfer Projects was 19 × 108 m3, which is enough to alleviate water use conflicts between different stakeholders in dry years. This study provided a method to protect ecosystems in a more sustainable way.

ACS Style

Aiping Pang; Chunhui Li; Tao Sun; Wei Yang; Zhifeng Yang. Trade-Off Analysis to Determine Environmental Flows in a Highly Regulated Watershed. Scientific Reports 2018, 8, 1 -11.

AMA Style

Aiping Pang, Chunhui Li, Tao Sun, Wei Yang, Zhifeng Yang. Trade-Off Analysis to Determine Environmental Flows in a Highly Regulated Watershed. Scientific Reports. 2018; 8 (1):1-11.

Chicago/Turabian Style

Aiping Pang; Chunhui Li; Tao Sun; Wei Yang; Zhifeng Yang. 2018. "Trade-Off Analysis to Determine Environmental Flows in a Highly Regulated Watershed." Scientific Reports 8, no. 1: 1-11.

Review
Published: 18 September 2018 in Sustainability
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The construction materials utilized in the building sector have accounted for a large amount of natural resource and energy consumption. Green building, which has developed over three decades, can be regarded as a management and technical approach for building and construction sectors to achieve resource and energy sustainability in building sectors. Therefore, the development and deployment of green construction materials play an important role in the green building field due to the contribution of sustainable resources and energy. To realize the barriers of energy and resources utilization on green building, the development trend, application, and some case studies on wall materials and thermal insulation materials are described. A summary of plant fibers, recycled wastes, and photochromic glass is developed to show applications of green construction materials, which contributes to sustainable development. The challenges and barriers from business, technical, and policy aspects are also reviewed. Finally, perspectives and prospects of green construction material life-cycle framework are illustrated. This paper presents a snapshot review of the importance of wall materials and thermal insulation materials from the point of view of energy and resources consumption.

ACS Style

Hao Wang; Pen-Chi Chiang; Yanpeng Cai; Chunhui Li; Xuan Wang; Tse-Lun Chen; Shiming Wei; Qian Huang. Application of Wall and Insulation Materials on Green Building: A Review. Sustainability 2018, 10, 3331 .

AMA Style

Hao Wang, Pen-Chi Chiang, Yanpeng Cai, Chunhui Li, Xuan Wang, Tse-Lun Chen, Shiming Wei, Qian Huang. Application of Wall and Insulation Materials on Green Building: A Review. Sustainability. 2018; 10 (9):3331.

Chicago/Turabian Style

Hao Wang; Pen-Chi Chiang; Yanpeng Cai; Chunhui Li; Xuan Wang; Tse-Lun Chen; Shiming Wei; Qian Huang. 2018. "Application of Wall and Insulation Materials on Green Building: A Review." Sustainability 10, no. 9: 3331.

Journal article
Published: 14 April 2018 in Water
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The security of drinking water is a serious issue in China and worldwide. As the backup source of drinking water for the Changde City in China, the Huangshi Reservoir suffers from the threat of eutrophication due to the water quality of the reservoir ecosystem being affected by the tributaries that carry Non-Point Source (NPS) pollutants. The calculation of the water environmental capacity (WEC) can provide a scientific basis for water pollution control, which refers to the maximum amount of pollutants that the water can accommodate. In this paper, according to the hydrological characteristics of the river–reservoir combination system, a one-dimensional (1-D) water quality model and the Environmental Fluid Dynamics Code (EFDC) model were chosen to calculate the water environmental capacity of each functional zone in this basin. The quantity control of pollution from the tributaries was conducted based on the combined results of the water environmental capacity calculation from the EFDC model and a one-dimensional (1-D) river water quality model. The results show that total water environmental capacity of the tributaries included a chemical oxygen demand (COD) of 421.97 tons; ammonia nitrogen (NH3-N) of 40.99 tons; total nitrogen (TN) of 35.94 tons; and total phosphorus (TP) of 9.54 tons. The water environmental capacity of the Huangshi Reservoir region accounts for more than 93% of the total capacity. The reduction targets of the major pollutants in the Huangshi Reservoir and its four major input rivers, which are, namely, the Bamao River, the Longtan River, the Fanjiafang River, and the Dongtan River, have been determined to achieve the water quality objectives for the reservoir in 2020 and 2025. The results will be helpful for the local water quality management and will provide a valuable example for other similar water source reservoirs.

ACS Style

Fen Zhao; Chunhui Li; Libin Chen; Yuan Zhang. An Integrated Method for Accounting for Water Environmental Capacity of the River–Reservoir Combination System. Water 2018, 10, 483 .

AMA Style

Fen Zhao, Chunhui Li, Libin Chen, Yuan Zhang. An Integrated Method for Accounting for Water Environmental Capacity of the River–Reservoir Combination System. Water. 2018; 10 (4):483.

Chicago/Turabian Style

Fen Zhao; Chunhui Li; Libin Chen; Yuan Zhang. 2018. "An Integrated Method for Accounting for Water Environmental Capacity of the River–Reservoir Combination System." Water 10, no. 4: 483.

Journal article
Published: 06 November 2017 in Entropy
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This paper establishes a water resources vulnerability framework based on sensitivity, natural resilience and artificial adaptation, through the analyses of the four states of the water system and its accompanying transformation processes. Furthermore, it proposes an analysis method for water resources vulnerability based on connection entropy, which extends the concept of contact entropy. An example is given of the water resources vulnerability in Anhui Province of China, which analysis illustrates that, overall, vulnerability levels fluctuated and showed apparent improvement trends from 2001 to 2015. Some suggestions are also provided for the improvement of the level of water resources vulnerability in Anhui Province, considering the viewpoint of the vulnerability index.

ACS Style

Zhengwei Pan; Juliang Jin; Chunhui Li; ShaoWei Ning; Rongxing Zhou. A Connection Entropy Approach to Water Resources Vulnerability Analysis in a Changing Environment. Entropy 2017, 19, 591 .

AMA Style

Zhengwei Pan, Juliang Jin, Chunhui Li, ShaoWei Ning, Rongxing Zhou. A Connection Entropy Approach to Water Resources Vulnerability Analysis in a Changing Environment. Entropy. 2017; 19 (11):591.

Chicago/Turabian Style

Zhengwei Pan; Juliang Jin; Chunhui Li; ShaoWei Ning; Rongxing Zhou. 2017. "A Connection Entropy Approach to Water Resources Vulnerability Analysis in a Changing Environment." Entropy 19, no. 11: 591.