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Xiaofeng Wang
The College of Land Engineering, Chang’an University, Xi’an, 710054, China

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Journal article
Published: 06 August 2021 in Environmental Science & Policy
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Facing rapid ecological degradation in the Qinghai Tibet Plateau (QTP), the determination of priority areas for conservation (CPAs) based on ecosystem services (ESs) is a key step for nature conservation and sustainable development. However, the trade-off between services makes the plan of maintaining protected areas (PAs) a challenge. In this study, by quantifying a variety of essential ESs in the QTP from 2000 to 2015, we used the multi-criteria ordered weighted average method to balance the trade-offs and determine the key CPAs for ES conservation. We found that the multi-criteria based selection of CPAs leads to higher (1.35) and more balanced ES protection efficiency (PE) than the single strategy. The CPAs obtained based on the logical framework of this paper are mainly located in the southeastern QTP and cover an area of 12.78 % of the QTP (330,124.76 km2). The comprehensive PE of ES was 1.68, and the PE of carbon storage, water yield, soil conservation, and cultural service were 2.20, 2.17, 4.54, and 1.59, respectively. Additionally, compared with the existing PA settings, our results can increase the proportion of biodiversity of amphibians and birds by more than 12 %. The framework of CPAs selection in this paper can provide a reference for the government’s growing nature conservation affairs, which will contribute to sustainable development.

ACS Style

Yi Wang; Xiaofeng Wang; Lichang Yin; XiaoMing Feng; Chaowei Zhou; Ling Han; Yihe Lü. Determination of conservation priority areas in Qinghai Tibet Plateau based on ecosystem services. Environmental Science & Policy 2021, 124, 553 -566.

AMA Style

Yi Wang, Xiaofeng Wang, Lichang Yin, XiaoMing Feng, Chaowei Zhou, Ling Han, Yihe Lü. Determination of conservation priority areas in Qinghai Tibet Plateau based on ecosystem services. Environmental Science & Policy. 2021; 124 ():553-566.

Chicago/Turabian Style

Yi Wang; Xiaofeng Wang; Lichang Yin; XiaoMing Feng; Chaowei Zhou; Ling Han; Yihe Lü. 2021. "Determination of conservation priority areas in Qinghai Tibet Plateau based on ecosystem services." Environmental Science & Policy 124, no. : 553-566.

Journal article
Published: 28 March 2021 in Remote Sensing
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Water stress is one of the primary environmental factors that limits terrestrial ecosystems’ productivity. Hense, the way to quantify gobal vegetation productivity’s vulnerability under water stress and reveal its seasonal dynamics in response to drought is of great significance in mitigating and adapting to global changes. Here, we estimated monthly gross primary productivity (GPP) first based on light-use efficiency (LUE) models for 1982–2015. GPP’s response time to water availability can be determined by correlating the monthly GPP series with the multiple timescale Standardized Precipitation Evapotranspiration Index (SPEI). Thereafter, we developed an optimal bivariate probabilistic model to derive the vegetation productivity loss probabilities under different drought scenarios using the copula method. The results showed that LUE models have a good fit and estimate GPP well (R2 exceeded 0.7). GPP is expected to decrease in 71.91% of the global land vegetation area because of increases in radiation and temperature and decreases in soil moisture during drought periods. Largely, we found that vegetation productivity and water availability are correlated positively globally. The vegetation productivity in arid and semiarid areas depends considerably upon water availability compared to that in humid and semi-humid areas. Weak drought resistance often characterizes the land cover types that water availability influences more. In addition, under the scenario of the same level of GPP damage with different drought degrees, as droughts increase in severity, GPP loss probabilities increase as well. Further, under the same drought severity with different levels of GPP damage, drought’s effect on GPP loss probabilities weaken gradually as the GPP damage level increaes. Similar patterns were observed in different seasons. Our results showed that arid and semiarid areas have higher conditional probabilities of vegetation productivity losses under different drought scenarios.

ACS Style

Yuan Zhang; XiaoMing Feng; Bojie Fu; Yongzhe Chen; Xiaofeng Wang. Satellite-Observed Global Terrestrial Vegetation Production in Response to Water Availability. Remote Sensing 2021, 13, 1289 .

AMA Style

Yuan Zhang, XiaoMing Feng, Bojie Fu, Yongzhe Chen, Xiaofeng Wang. Satellite-Observed Global Terrestrial Vegetation Production in Response to Water Availability. Remote Sensing. 2021; 13 (7):1289.

Chicago/Turabian Style

Yuan Zhang; XiaoMing Feng; Bojie Fu; Yongzhe Chen; Xiaofeng Wang. 2021. "Satellite-Observed Global Terrestrial Vegetation Production in Response to Water Availability." Remote Sensing 13, no. 7: 1289.

Journal article
Published: 06 March 2021 in Atmosphere
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Extensive ecosystem restoration is increasingly seen as an essential practice to mitigate climate change and protect the ecological environment. However, the indirect impact of surface vegetation improvement on the regional climate, such as the climate effect of sand-dust events reduction, has never been evaluated. Here, we estimated the feedback of temperature and precipitation on the change of sand-dust events, arising from the vegetation growth with ecological restoration, using a simple theoretical framework with a series of scenario simulations based on a regional climate model (RegCM). The results showed that revegetation reduced dust emissions, with a contribution rate of approximately 40.15%. With the combined influence of ecological restoration and climate change, the cooling effect of sand-dust events strengthened with the increase in the intensity of sand-dust events, which is mainly caused by the strong absorption of shortwave radiation by the atmosphere. The response of precipitation was uncertain because of tropospheric circulation feedback and shortwave radiation absorption. Our results also indicate that changes in sand-dust events caused by vegetation restoration play important roles in shaping the future climate near the arid and semi-arid regions of northern China. The climatic effects of sand-dust events should be included in assessing ecological restoration impacts to promote sustainable development and enhance our understanding of climate change.

ACS Style

Chaowei Zhou; XiaoMing Feng; Yichu Huang; Xiaofeng Wang; Xinrong Zhang. The Indirect Impact of Surface Vegetation Improvement on the Climate Response of Sand-Dust Events in Northern China. Atmosphere 2021, 12, 339 .

AMA Style

Chaowei Zhou, XiaoMing Feng, Yichu Huang, Xiaofeng Wang, Xinrong Zhang. The Indirect Impact of Surface Vegetation Improvement on the Climate Response of Sand-Dust Events in Northern China. Atmosphere. 2021; 12 (3):339.

Chicago/Turabian Style

Chaowei Zhou; XiaoMing Feng; Yichu Huang; Xiaofeng Wang; Xinrong Zhang. 2021. "The Indirect Impact of Surface Vegetation Improvement on the Climate Response of Sand-Dust Events in Northern China." Atmosphere 12, no. 3: 339.

Journal article
Published: 23 February 2021 in Geography and Sustainability
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Water resources are a basic need for social sustainable development and human existence. As an important national strategy for water resources security, spatial and temporal patterns and driving mechanisms of water yield ecosystem services on the Qingzang Plateau (QP) are critical for water resources management, optimal water allocation and the improvement of ecological water protection efficiency. However, only a few relevant studies are currently available. In this study, we simulated the water yield (WY) of the QP over 34 years, from 1982 to 2015, using the InVEST model and analyzed the spatiotemporal dynamic relationships between WY and climate change as well as between WY and vegetation change, using geographically weighted regression (GWR) models. The results showed that: 1) from 1982 to 2015, the WY of the QP increased at an average rate of 3.8 mm/yr; 2) WY presented a reduced spatial pattern from southeast to northwest; and 3) the WY driving factors have individual and spatial differences. In terms of the area percentage in promoting WY when analyzing each driving factor, precipitation (99.8%) and air pressure (53.3%) played the major roles in promoting WY, while temperature (71.9%), wind speed (57.2%), net primary productivity (87.2%), radiation (68.3%) and lake (87.7%) played negative roles. The areas where WY are dominated by temperature are the largest (41.1%), and followed by areas dominated by pressure (19.7%) and precipitation (18.5%). The results of this study provide scientific support for formulating regional water resources policy, social and economic development planning and other macro decisions for the QP.

ACS Style

Xiaofeng Wang; Bingyang Chu; XiaoMing Feng; Yuehao Li; Bojie Fu; Shirong Liu; Jiming Jin. Spatiotemporal variation and driving factors of water yield services on the Qingzang Plateau. Geography and Sustainability 2021, 2, 31 -39.

AMA Style

Xiaofeng Wang, Bingyang Chu, XiaoMing Feng, Yuehao Li, Bojie Fu, Shirong Liu, Jiming Jin. Spatiotemporal variation and driving factors of water yield services on the Qingzang Plateau. Geography and Sustainability. 2021; 2 (1):31-39.

Chicago/Turabian Style

Xiaofeng Wang; Bingyang Chu; XiaoMing Feng; Yuehao Li; Bojie Fu; Shirong Liu; Jiming Jin. 2021. "Spatiotemporal variation and driving factors of water yield services on the Qingzang Plateau." Geography and Sustainability 2, no. 1: 31-39.

Journal article
Published: 28 December 2020 in Urban Forestry & Urban Greening
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Fine monitoring of tree species is essential to supporting the urban forest management. Data acquired from unmanned aerial vehicles (UAVs) not only have very high spatiotemporal resolution, but also contain the vertical structure of trees which is important in the fine recognition of vegetation types. However, the research of combining multi-dimensional features in classification is still very limited. In our study, we extracted the spectral information, vegetation morphological parameters, texture information, and vegetation indexes based on UAV ultrahigh resolution images to build an object-oriented-based random forest (RF) classifier at the single tree scale. Establishing 6 classification scenarios that combines multiple data sources, multi-dimensional features, and multiple classification algorithms, our results show that: (1) UAV images can effectively detect surface fragments. The accuracy of RF classification based on UAV multiple features was high at 91.3 %, which was 20.5 % higher than the results by using high-resolution Baidu maps; (2) for mapping the tree species of urban forest, tree morphological characteristics, texture information, and vegetation indexes improved the classification accuracy by 2.9 %, 1.9 %, and 7.1 %, respectively, resulting in meaningful improvement of classification effects; and (3) the accuracy of RF classification based on UAV data was much higher than the maximum likelihood classification (MLC) results. Compared with the latter, the former can effectively avoid salt and pepper noise. The workflow of information extraction and urban forest classification based on UAV images in this paper yields high performance, which has important significance as a reference for future relevant research.

ACS Style

Xiaofeng Wang; Yi Wang; Chaowei Zhou; Lichang Yin; XiaoMing Feng. Urban forest monitoring based on multiple features at the single tree scale by UAV. Urban Forestry & Urban Greening 2020, 58, 126958 .

AMA Style

Xiaofeng Wang, Yi Wang, Chaowei Zhou, Lichang Yin, XiaoMing Feng. Urban forest monitoring based on multiple features at the single tree scale by UAV. Urban Forestry & Urban Greening. 2020; 58 ():126958.

Chicago/Turabian Style

Xiaofeng Wang; Yi Wang; Chaowei Zhou; Lichang Yin; XiaoMing Feng. 2020. "Urban forest monitoring based on multiple features at the single tree scale by UAV." Urban Forestry & Urban Greening 58, no. : 126958.

Journal article
Published: 18 August 2020 in Sustainability
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It is of great significance to study the spatiotemporal dynamics of the ecosystem and explore the driving forces that affect change in the ecosystem in the National Barrier Zone (NBZ). Based on multi-source remote sensing data, this paper analyzed the change in the ecosystem in the NBZ from 2000 to 2015. Natural and social economic factors were selected as the driving factors, and the change mechanism of the ecological system in the NBZ area was analyzed by means of redundancy analysis and other methods. The results showed the following: (1) Between 2000 and 2015, the ecosystem changes in the NBZ are obvious. It is important to note that the grassland and urban ecosystem increased by 13,952 and 6720 km2, respectively; at the same time, the desert ecosystem significantly decreased by 4544 km2. (2) The human activity represented by gross domestic product (GDP) is the main factor in the change of ecosystem change in the NBZ with a contribution of 75%, especially in the ecological barrier of the Sichuan–Yunnan–Loess plateau with a GDP contribution rate of 83%. (3) The changes in the ecosystems are significantly influenced by multifactorial interactions, such as the joint contribution rate of the drought index (PDSI) and GDP reaching 0.11 in the ecological barrier of Qinghai–Tibet plateau. (4) The ecological protection projects, such as the Green for Grain Project in the NBZ, play a positive role, and the ecological environment is improving. The conclusions of this paper will be used as a basic theory to contribute to subsequent research on ecosystem services, policy making, and other aspects in the NBZ.

ACS Style

Xiaofeng Wang; Yuehao Li; Bingyang Chu; Shirong Liu; Dan Yang; Junwei Luan. Spatiotemporal Dynamics and Driving Forces of Ecosystem Changes: A Case Study of the National Barrier Zone, China. Sustainability 2020, 12, 6680 .

AMA Style

Xiaofeng Wang, Yuehao Li, Bingyang Chu, Shirong Liu, Dan Yang, Junwei Luan. Spatiotemporal Dynamics and Driving Forces of Ecosystem Changes: A Case Study of the National Barrier Zone, China. Sustainability. 2020; 12 (16):6680.

Chicago/Turabian Style

Xiaofeng Wang; Yuehao Li; Bingyang Chu; Shirong Liu; Dan Yang; Junwei Luan. 2020. "Spatiotemporal Dynamics and Driving Forces of Ecosystem Changes: A Case Study of the National Barrier Zone, China." Sustainability 12, no. 16: 6680.

Journal article
Published: 06 August 2020 in Remote Sensing
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Accurate evapotranspiration (ET) estimation is important in understanding the hydrological cycle and improving water resource management. The operational simplified surface energy balance (SSEBop) model can be set up quickly for the routine monitoring of ET. Several studies have suggested that the SSEBop model, which can simulate ET, has performed inconsistently across the United States. There are few detailed studies on the evaluation of ET simulated by SSEBop in other regions. To explore the potential and application scope of the SSEBop model, more evaluation of the ET simulated by SSEBop is clearly needed. We calculated the SSEBop-model-based ET (ETSSEBopYRB) with land surface temperature product of MOD11A2 and climate variables as inputs for the Yellow River Basin (YRB), China. We also compared the ETSSEBopYRB with eight coarse resolution ET products, including China ETMTE, produced using the upscaling energy flux method; China ETCR, which is generated using the non-linear complementary relationship model; three global products based on the Penman–Monteith logic (ETPMLv2, ETMODIS, and ETBESS), two global ET products based on the surface energy balance (ETSEBS, ETSSEBopGlo), and integrated ET products based on the Bayesian model averaging method (ETGLASS), using the annual ET data derived from the water balance method (WB-ET) for fourteen catchments. We found that ETSSEBopYRB and the other eight ET products were able to explain 23 to 52% of the variability in the water balance ET for fourteen small catchments in the YRB. ETSSEBopYRB had a better agreement with WB-ET than ETSEBS, ETMODIS, ETCR, and ETGLASS, with lower RMSE (88.3 mm yr−1 vs. 121.7 mm yr−1), higher R2 (0.49 vs. 0.43), and lower absolute RPE (−3.3% vs. –19.9%) values for the years 2003–2015. We also found that the uncertainties of the spatial patterns of the average annual ET values and the ET trends were still large for different ET products. Third, we found that the free global ET product derived from the SSEBop model (ETSSEBopGlo) highly underestimated the annual total ET trend for the YRB. The poor performance of the land surface temperature product of MOD11A2 in 2015 caused the large ETSSEBopYRB uncertainty at eight-day and monthly scales. Further evaluation of ET based on the SSEBop model for site measurements is needed.

ACS Style

Lichang Yin; Xiaofeng Wang; XiaoMing Feng; Bojie Fu; Yongzhe Chen. A Comparison of SSEBop-Model-Based Evapotranspiration with Eight Evapotranspiration Products in the Yellow River Basin, China. Remote Sensing 2020, 12, 2528 .

AMA Style

Lichang Yin, Xiaofeng Wang, XiaoMing Feng, Bojie Fu, Yongzhe Chen. A Comparison of SSEBop-Model-Based Evapotranspiration with Eight Evapotranspiration Products in the Yellow River Basin, China. Remote Sensing. 2020; 12 (16):2528.

Chicago/Turabian Style

Lichang Yin; Xiaofeng Wang; XiaoMing Feng; Bojie Fu; Yongzhe Chen. 2020. "A Comparison of SSEBop-Model-Based Evapotranspiration with Eight Evapotranspiration Products in the Yellow River Basin, China." Remote Sensing 12, no. 16: 2528.

Article
Published: 11 January 2020 in Chinese Geographical Science
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As an important means regulating the relationship between human and natural ecosystem, ecological restoration program plays a key role in restoring ecosystem functions. The Grain-for-Green Program (GFGP, One of the world’s most ambitious ecosystem conservation set-aside programs aims to transfer farmland on steep slopes to forestland or grassland to increase vegetation coverage) has been widely implemented from 1999 to 2015 and exerted significant influence on land use and ecosystem services (ESs). In this study, three ecological models (InVEST, RUSLE, and CASA) were used to accurately calculate the three key types of ESs, water yield (WY), soil conservation (SC), and net primary production (NPP) in Karst area of southwestern China from 1982 to 2015. The impact of GFGP on ESs and trade-offs was analyzed. It provides practical guidance in carrying out ecological regulation in Karst area of China under global climate change. Results showed that ESs and trade-offs had changed dramatically driven by GFGP. In detail, temporally, SC and NPP exhibited an increasing trend, while WY exhibited a decreasing trend. Spatially, SC basically decreased from west to east; NPP basically increased from north to south; WY basically increased from west to east; NPP and SC, SC and WY developed in the direction of trade-offs driven by the GFGP, while NPP and WY developed in the direction of synergy. Therefore, future ecosystem management and restoration policy-making should consider trade-offs of ESs so as to achieve sustainable provision of ESs.

ACS Style

Xiaofeng Wang; Xinrong Zhang; XiaoMing Feng; Shirong Liu; Lichang Yin; Yongzhe Chen. Trade-offs and Synergies of Ecosystem Services in Karst Area of China Driven by Grain-for-Green Program. Chinese Geographical Science 2020, 30, 101 -114.

AMA Style

Xiaofeng Wang, Xinrong Zhang, XiaoMing Feng, Shirong Liu, Lichang Yin, Yongzhe Chen. Trade-offs and Synergies of Ecosystem Services in Karst Area of China Driven by Grain-for-Green Program. Chinese Geographical Science. 2020; 30 (1):101-114.

Chicago/Turabian Style

Xiaofeng Wang; Xinrong Zhang; XiaoMing Feng; Shirong Liu; Lichang Yin; Yongzhe Chen. 2020. "Trade-offs and Synergies of Ecosystem Services in Karst Area of China Driven by Grain-for-Green Program." Chinese Geographical Science 30, no. 1: 101-114.

Journal article
Published: 23 December 2019 in Journal of Rural Studies
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The sandy area along the Great Wall in northern Shaanxi Province of China, is located in the transition zone between the Maowusu Desert and the loess hills and gullies region, with a vast territory and large per capita of cultivated agricultural land. However, the cultivated land quality is generally poor due to the local natural conditions. It is of practical significance to find ways to improve the quality of agricultural land and put forward targeted measures for its improvement. Through the analysis of farmland gradation results in the study area, we calculated an improvement potential index with a model to determine the primary limiting factors of agricultural land quality in the study area. The results indicate that both singe-factor and combined-factor limitations exist in the region. The single-factor limiting types include soil thickness, organic content, irrigation, salinization, etc., while the combined-factor limiting types include the combinations of the irrigation water source and irrigation firm probability, soil structure and organic matter, soil thickness and soil texture, and so on. Through the analysis of the potential index model results, we determined the main limiting factors in agricultural production, which vary spatially throughout the region, and suggested targeted measures to improve the cultivated land quality. These measures will then promote revitalization of sandy rural areas along the great wall in northern Shaanxi Province, China.

ACS Style

Xuefeng Yuan; Yajing Shao; Yuheng Li; Yansui Liu; Yongsheng Wang; Xindong Wei; Xiaofeng Wang; Yonghua Zhao. Cultivated land quality improvement to promote revitalization of sandy rural areas along the Great Wall in northern Shaanxi Province, China. Journal of Rural Studies 2019, 1 .

AMA Style

Xuefeng Yuan, Yajing Shao, Yuheng Li, Yansui Liu, Yongsheng Wang, Xindong Wei, Xiaofeng Wang, Yonghua Zhao. Cultivated land quality improvement to promote revitalization of sandy rural areas along the Great Wall in northern Shaanxi Province, China. Journal of Rural Studies. 2019; ():1.

Chicago/Turabian Style

Xuefeng Yuan; Yajing Shao; Yuheng Li; Yansui Liu; Yongsheng Wang; Xindong Wei; Xiaofeng Wang; Yonghua Zhao. 2019. "Cultivated land quality improvement to promote revitalization of sandy rural areas along the Great Wall in northern Shaanxi Province, China." Journal of Rural Studies , no. : 1.

Research article
Published: 27 March 2019 in Landscape Ecology
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The oasis, desert–oasis ecotone (DOE) and desert compose the typical landscape structures in arid regions. The detection of landscape structure changes and quantification of the driving forces are vital to sustainable ecosystem management. Previous studies did not integrate the three landscape types, especially considering the role of the DOE, to detect landscape changes. (1) Detect the spatio-temporal dynamics of the landscape structure in the middle reach of the Heihe River Basin from 1990 to 2015. (2) Identify the key driving factors for landscape structure changes and quantify their contributions. The decision tree classification algorithm was combined with visual interpretation to extract oasis, DOE and desert areas. Status and trend indicators, transition matrix and landscape metrics were used to characterize the landscape changes. Redundancy analysis and variation portioning analysis were integrated for quantification of driving forces. Landscape change was characterized by oasis expansion (+ 37.21%) via a one-way transition with an unbalanced status. The contraction of DOE (− 12.73%) and desert (− 8.50%) areas mainly occurred on the periphery of the oasis. The landscape structure changes were mainly driven by the population, river flow and gross domestic product with unique contributions of 35.99, 9.01 and 7.68%, respectively, and a cumulative contribution of 96.64%. The mutual transformations among landscapes showed distinct spatio-temporal variations. Human activities, especially demographic factors, drove the changes in landscape structure. The development of oasis areas should be controlled within a suitable scale, and the DOE should be protected to maintain the stability of ecosystems in arid regions.

ACS Style

Feiyan Xiao; Guangyao Gao; Qin Shen; Xiaofeng Wang; Ying Ma; Yihe Lü; Bojie Fu. Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015. Landscape Ecology 2019, 34, 755 -770.

AMA Style

Feiyan Xiao, Guangyao Gao, Qin Shen, Xiaofeng Wang, Ying Ma, Yihe Lü, Bojie Fu. Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015. Landscape Ecology. 2019; 34 (4):755-770.

Chicago/Turabian Style

Feiyan Xiao; Guangyao Gao; Qin Shen; Xiaofeng Wang; Ying Ma; Yihe Lü; Bojie Fu. 2019. "Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015." Landscape Ecology 34, no. 4: 755-770.

Research article
Published: 09 March 2018 in Hydrology and Earth System Sciences
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The frequency and intensity of drought are increasing dramatically with global warming. However, few studies have characterized drought in terms of its impacts on ecosystem services, the mechanisms through which ecosystems support life. As a result, little is known about the implications of increased drought for resource management. This case study characterizes drought by linking climate anomalies with changes in the precipitation–runoff relationship (PRR) on the Loess Plateau of China, a water-limited region where ongoing revegetation makes drought a major concern. We analyzed drought events with drought durations ≥ 5 years and mean annual precipitation anomaly (PA) values ≤ −5 % during drought periods. The results show that continuous precipitation shifts are able to change the water balance of watersheds in water-limited areas, and multi-year drought events cause the PRR to change with a significantly decreasing trend (p < 0.05) compared to other historical records. For the Loess Plateau as a whole, the average runoff ratio decreased from 10 to 6.8 % during 1991–1999. The joint probability and return period gradually increase with increasing of drought duration and severity. The ecosystem service of water yield is easily affected by drought events with durations equal to or greater than 6 years and drought severity values equal to or greater than 0.55 (precipitation ≤ 212 mm). At the same time, multi-year drought events also lead to significant changes in the leaf area index (LAI). Such studies are essential for ecosystem management in water-limited areas.

ACS Style

Yuan Zhang; XiaoMing Feng; Xiaofeng Wang; Bojie Fu. Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China. Hydrology and Earth System Sciences 2018, 22, 1749 -1766.

AMA Style

Yuan Zhang, XiaoMing Feng, Xiaofeng Wang, Bojie Fu. Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China. Hydrology and Earth System Sciences. 2018; 22 (3):1749-1766.

Chicago/Turabian Style

Yuan Zhang; XiaoMing Feng; Xiaofeng Wang; Bojie Fu. 2018. "Characterizing drought in terms of changes in the precipitation–runoff relationship: a case study of the Loess Plateau, China." Hydrology and Earth System Sciences 22, no. 3: 1749-1766.

Article
Published: 26 January 2018 in Geological Journal
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Based on the previous research in loess hilly region of Northern Shaanxi, this paper takes the soil erosion degree as the main measure of soil stability and the soil utility, annual average rainfall in flood season (from June to September), and topography, as the main measure indexes of soil stability. After that, the evaluation system of soil stability in loess hilly region of Northern Shaanxi can be constructed, which can be done by special analysis of GIS. The results illustrate that the soil stability showed a trend of high south-east and low north-west. Soil with good stability is mainly distributed in Ganquan County, and Yanchuan County, where vegetation coverage is high, vegetation types are mostly forest land and grassland, ecological environment is good, and precipitation erosion effect is not significant. Soil with intermediate stability is mainly distributed in Baota district and its surrounding areas, where the main vegetation types are bush fallow and grassland, and the terrain is flat and gently rolling. Soil with the worst stability is mainly distributed in Suide County, and Wuqi County. The area is mostly sandy and desert, the terrain is fragmented, soil is loose, vegetation cover is not high, making the soil the worst soil stability, and strong rainfall conditions are prone to soil erosion. The prerequisite of the implementation of soil consolidation projects is having evaluation on soil stability. The research results can be the theoretical evidence, and implement guarantee of regional soil exploitation and reorganization, and the reference to enhancing the assurance of ecological safety.

ACS Style

Xuefeng Yuan; Rui Hou; Yansui Liu; Xindong Wei; Xiaofeng Wang; Yue Ying; Yonghua Zhao; Yichen Yao; Jinwei Chang. The evaluation of soil stability in loess hilly and gully region of Northern Shaanxi based on GIS. Geological Journal 2018, 53, 379 -386.

AMA Style

Xuefeng Yuan, Rui Hou, Yansui Liu, Xindong Wei, Xiaofeng Wang, Yue Ying, Yonghua Zhao, Yichen Yao, Jinwei Chang. The evaluation of soil stability in loess hilly and gully region of Northern Shaanxi based on GIS. Geological Journal. 2018; 53 ():379-386.

Chicago/Turabian Style

Xuefeng Yuan; Rui Hou; Yansui Liu; Xindong Wei; Xiaofeng Wang; Yue Ying; Yonghua Zhao; Yichen Yao; Jinwei Chang. 2018. "The evaluation of soil stability in loess hilly and gully region of Northern Shaanxi based on GIS." Geological Journal 53, no. : 379-386.

Article
Published: 02 January 2018 in Geological Journal
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To study the status quo of research on geological hazards in the Central China Orogen and its geological distribution quantitatively, we used bibliometric methods and deeply analysed the numbers, the authors and research institutions involved, and the distribution and changes of the research contents of papers on geological hazards published from 1962 to 2016. This review involved 26,677 documents, 26,339 authors, and 11,095 research institutions. The results showed that the study of geological hazards has significant time-domain characteristics. In this field, the greatest number of papers was published in Recent Developments in World Seismology and the Chinese Journal of Geophysics–Chinese Edition, with 456 and 159 papers, respectively. As shown by an analysis of keywords, the current research focuses mainly on the evaluation, distribution characteristics, development regularity, detection and prediction, and prevention and control of geological hazards. The conclusions find that the authors of foreign-published papers are mostly Chinese researchers, which cannot reflect the status quo of foreign research in this field to a certain extent. Differentiation between domestic and foreign research approaches and objectives through comparative analysis should be further explored.

ACS Style

Xuefeng Yuan; Yue Ying; Xindong Wei; Rui Hou; Xiaofeng Wang; Yonghua Zhao; Yajing Shao; Yichen Yao; Jinwei Chang. Research status quo and its prevention implication of geological hazards in the Central China Orogen. Geological Journal 2018, 53, 252 -265.

AMA Style

Xuefeng Yuan, Yue Ying, Xindong Wei, Rui Hou, Xiaofeng Wang, Yonghua Zhao, Yajing Shao, Yichen Yao, Jinwei Chang. Research status quo and its prevention implication of geological hazards in the Central China Orogen. Geological Journal. 2018; 53 ():252-265.

Chicago/Turabian Style

Xuefeng Yuan; Yue Ying; Xindong Wei; Rui Hou; Xiaofeng Wang; Yonghua Zhao; Yajing Shao; Yichen Yao; Jinwei Chang. 2018. "Research status quo and its prevention implication of geological hazards in the Central China Orogen." Geological Journal 53, no. : 252-265.

Special issue article
Published: 17 October 2017 in Geological Journal
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China has witnessed rapid urban growth over the past 3 decades resulting in vast ecological and environmental issues. Understanding the process of construction land (Cl) expansion and its driving factors are crucial for urban growth planning and management to mitigate the adverse impacts of such growth. Based on remote sensing data for 1975, 1990, 2000, and 2008, we monitored Cl changes in Xi'an City over the past 3 decades. The land use transform matrices were calculated. The results showed that from 1975 to 2008, remarkable changes in Cl occurred in Xi'an City. Over the past 30 years, the Cl concentration spread from one centre to multiple centres. The elevation, slope, traffic condition, wetland, education industry, rebuilding of city village, and historical and cultural sites may be the most important driving forces. We therefore recommend discussing the interactions of these potential driving factors within the Cl sprawl.

ACS Style

Xiaofeng Wang; Feiyan Xiao; Yuan Zhang; Lichang Yin; Muchu Lesi; Bin Guo; Yonghua Zhao. Thirty-year expansion of construction land in Xi'an: Spatial pattern and potential driving factors. Geological Journal 2017, 53, 309 -321.

AMA Style

Xiaofeng Wang, Feiyan Xiao, Yuan Zhang, Lichang Yin, Muchu Lesi, Bin Guo, Yonghua Zhao. Thirty-year expansion of construction land in Xi'an: Spatial pattern and potential driving factors. Geological Journal. 2017; 53 ():309-321.

Chicago/Turabian Style

Xiaofeng Wang; Feiyan Xiao; Yuan Zhang; Lichang Yin; Muchu Lesi; Bin Guo; Yonghua Zhao. 2017. "Thirty-year expansion of construction land in Xi'an: Spatial pattern and potential driving factors." Geological Journal 53, no. : 309-321.

Article
Published: 17 October 2017 in Geological Journal
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The arid region in the northern part of China is a bridge between China and neighbouring countries in the Silk Road Economic Belt, and the severe desertification in this region restricts its sustainable development. In this paper, MODIS data, including albedo, reflectance, normalized vegetation index, and land surface temperature, were selected in 2000, 2005, 2010, and 2015 to construct a decision tree to extract spatio-temporal information of the desertified land in the arid area. The trend in desertification and transfer directions was analysed by the GIS method, and the dynamic characteristics of the desertification at different units (provincial administrative unit and typical sandy land) and with different topographic factors (slope and aspect) are discussed. Our conclusions include (a) desertification in the arid region in the northern part of China showed improvement overall and local deterioration. The deteriorating areas were located primarily in the western region of the Hunshandake Sandy Land, the tectonic zone of the Taklimakan Desert, and the Qaidam Basin; (b) the degree of desertification transfer occurred primarily at adjacent levels; (c) the desertified area in each province showed a different trend in fluctuation, and Maowusu Sandy Land recovered better among the 4 large sands; and (d) the desertified area was distributed primarily along 0o–3o slopes and showed a rapid decline at increased slopes. The change in the degree of desertification in each aspect largely was a general reversal, and the area of the north aspect was larger than that of other areas of aspects. This study provides some theoretical support for the control of desertification in the Silk Road Economic Belt.

ACS Style

Xiaofeng Wang; Lichang Yin; Feiyan Xiao; Mingming Zhang; Lili Liu; Zixiang Zhou; Yong Ao. The desertification process in the Silk Road Economic Belt in the past 15 years: A study using MODIS data and GIS analysis. Geological Journal 2017, 53, 322 -331.

AMA Style

Xiaofeng Wang, Lichang Yin, Feiyan Xiao, Mingming Zhang, Lili Liu, Zixiang Zhou, Yong Ao. The desertification process in the Silk Road Economic Belt in the past 15 years: A study using MODIS data and GIS analysis. Geological Journal. 2017; 53 ():322-331.

Chicago/Turabian Style

Xiaofeng Wang; Lichang Yin; Feiyan Xiao; Mingming Zhang; Lili Liu; Zixiang Zhou; Yong Ao. 2017. "The desertification process in the Silk Road Economic Belt in the past 15 years: A study using MODIS data and GIS analysis." Geological Journal 53, no. : 322-331.

Preprint content
Published: 08 May 2017
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The frequency and intensity of drought is increasing dramatically with global warming. Yet, few studies have characterized drought from its impact on the ecosystem services, the mechanisms through which ecosystems support life. As a result, little is known about the implications of increased drought on resource management. This case study characterizes drought by linking climate anomaly with the change in precipitation-runoff relationships, in the Loess Plateau of China, a water-limited region where re-vegetation in the area makes drought a major concern. We analyze droughts with duration greater than 5 years and annual precipitation anomalies more negative than −5 %, we found that continuous precipitation shifts is able to change watershed water balance in the water limited area, multi-year drought caused the precipitation-runoff relationship to change with a significantly descending trend (p

ACS Style

Yuan Zhang; XiaoMing Feng; Xiaofeng Wang; Bojie Fu. Characterizing drought by change in precipitation-runoff relationship: a case study of the Loess Plateau, China. 2017, 22, 1749 -1766.

AMA Style

Yuan Zhang, XiaoMing Feng, Xiaofeng Wang, Bojie Fu. Characterizing drought by change in precipitation-runoff relationship: a case study of the Loess Plateau, China. . 2017; 22 (3):1749-1766.

Chicago/Turabian Style

Yuan Zhang; XiaoMing Feng; Xiaofeng Wang; Bojie Fu. 2017. "Characterizing drought by change in precipitation-runoff relationship: a case study of the Loess Plateau, China." 22, no. 3: 1749-1766.