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Xiaolan Tang
College of Landscape Architecture, Nanjing Forestry University, Nanjing, China

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Original article
Published: 25 January 2021 in Journal of Mountain Science
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Land use suitability analysis plays an important role in sustainable land use and solving environmental problems caused by rapid urban development. A land use suitability mapping approach for town development planning in hilly areas was constructed based on two multi-criteria evaluation methods: Weighted Linear Combination (WLC) and Ordered Weighted Averaging (OWA), to comparatively evaluate and map land use suitability of Tangshan new town in Nanjing, China. Fourteen evaluation factors related to topographic, environmental, socio-economics and historical sites data were used as suitability criteria. The analytic hierarchy process (AHP) method and GIS techniques were integrated into the evaluation models to create the land use suitability map for town development planning. The results of WLC approach showed that 11.4% of the total area is highly suitable while the 48.6% is unsuitable. The results of WLC and OWA approach showed the distribution of degree of land use suitability is almost the same. The areas located at the southern and eastern flat regions are highly suitable for land use, whereas the areas close to the mountain forests, steep slopes, waters, and hot springs, have lower suitability for land use. Sensitivity analysis indicated that the suitability results of the two proposed methods are robust. Indirect validation was achieved by mutual comparison of suitability maps derived from the WLC and OWA methods. It demonstrated that the overall agreement is 90.81% and kappa coefficient is 0.81, indicating that both methods provide very similar spatial suitability distributions. By overlaying the resultant map with the previous master plan map of Tangshan new town, the overlay map once again indicated a satisfactory ecological fit between the two maps. At last, several recommendations are proposed aiming at improving the long-term town development plan for Tangshan new town.

ACS Style

Yang Yang; Xiao-Lan Tang; Zhe-Hui Li. Land use suitability analysis for town development planning in Nanjing hilly areas: A case study of Tangshan new town, China. Journal of Mountain Science 2021, 18, 528 -540.

AMA Style

Yang Yang, Xiao-Lan Tang, Zhe-Hui Li. Land use suitability analysis for town development planning in Nanjing hilly areas: A case study of Tangshan new town, China. Journal of Mountain Science. 2021; 18 (2):528-540.

Chicago/Turabian Style

Yang Yang; Xiao-Lan Tang; Zhe-Hui Li. 2021. "Land use suitability analysis for town development planning in Nanjing hilly areas: A case study of Tangshan new town, China." Journal of Mountain Science 18, no. 2: 528-540.

Journal article
Published: 02 April 2020 in Sustainability
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The comprehensive application of ecosystem service value (ESV) and ecological risk index (ERI) assessment can provide better decision support for regional ecological environment protection. Based on the remote sensing image data of Wuhu city of 1995, 2005 and 2016, the paper analyzed the spatial-temporal evolution of ESV and ERI in Wuhu city and its associated characteristics using an ESV, ERI assessments and a bivariate spatial autocorrelation method. The results showed that (1) the total ESV of Wuhu city continued to decline from 1995 to 2016, with a decrease of US$ 363.664 million. The total ESV per unit area of the sampling plot decreased, and the high-value was mainly distributed in areas within 5–10 km along the Yangtze River floodplain. (2) Wuhu city was mainly dominated by a relatively low ERI and medium ERI from 1995 to 2016. The high-value areas were mainly distributed in the mainstream of the Yangtze River, and the overall ERI improved. (3) There was a positive spatial correlation between the total ESV per unit area and ERI in Wuhu city, and these areas were mainly distributed in the Yangtze River mainstream region. According to this research, it is necessary to pay attention to the protection of wetland and forest landscapes, strengthen wetland ecological protection based on the Yangtze River and protect and restore natural mountain forests, all of which play important roles in improving the ecosystem service function of Wuhu city and protecting the ecological environment of the Yangtze River. We should act on that knowledge, and produce effective environmental regulations and habitat restoration efforts that improve the ESV and reduce the ERI. The findings of the study can serve as a reference for the management and protection of ecological environments in river-crossing cities.

ACS Style

Yanyan Jia; Xiaolan Tang; Wei Liu. Spatial–Temporal Evolution and Correlation Analysis of Ecosystem Service Value and Landscape Ecological Risk in Wuhu City. Sustainability 2020, 12, 2803 .

AMA Style

Yanyan Jia, Xiaolan Tang, Wei Liu. Spatial–Temporal Evolution and Correlation Analysis of Ecosystem Service Value and Landscape Ecological Risk in Wuhu City. Sustainability. 2020; 12 (7):2803.

Chicago/Turabian Style

Yanyan Jia; Xiaolan Tang; Wei Liu. 2020. "Spatial–Temporal Evolution and Correlation Analysis of Ecosystem Service Value and Landscape Ecological Risk in Wuhu City." Sustainability 12, no. 7: 2803.

Article
Published: 19 October 2019 in GeoJournal
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With the acceleration of urbanization, the unknown risks faced by cities and regions are also increasing, and their vulnerability is exposed, which has become a major problem hindering sustainable development. Through the study of disaster risk assessment, we can find out regional disaster-causing factors and social vulnerability factors, so as to provide a basis for targeted response to the impact of natural disasters. Based on the HOP model put forward by Susan L. Cutter, this study studied the Place Vulnerability = Hazards Exposure Level × Social Vulnerability Index as the main calculation formula. The natural disaster frequency and socio-economic structure index of 83 sample cities in the middle and lower reaches of Yangtze river in 2016 were calculated by combing historical literature. SPSS software was used to analyze the principal component of the socio-economic data of the sample city. Through the calculation of the total variance contribution rate and dimensionality reduction processing, the selected 14 index factors were extracted and processed into 5 principal component factors. According to the index weight coefficient, the comprehensive score of the city’s social vulnerability was calculated. As a result, with the combination of hazards exposure level score and Social Vulnerability Index score, the Place Vulnerability scores in the middle and lower reaches of Yangtze river were obtained and analyzed with clustering. Finally, the distribution characteristics of regional natural disasters and socio-economic structures were described.

ACS Style

Naijing Guo; Xiaolan Tang; Yujie Ren; Kun Ma; Jinxiang Fang. Place vulnerability assessment based on the HOP model in the middle and lower reaches of the Yangtze River. GeoJournal 2019, 86, 689 -710.

AMA Style

Naijing Guo, Xiaolan Tang, Yujie Ren, Kun Ma, Jinxiang Fang. Place vulnerability assessment based on the HOP model in the middle and lower reaches of the Yangtze River. GeoJournal. 2019; 86 (2):689-710.

Chicago/Turabian Style

Naijing Guo; Xiaolan Tang; Yujie Ren; Kun Ma; Jinxiang Fang. 2019. "Place vulnerability assessment based on the HOP model in the middle and lower reaches of the Yangtze River." GeoJournal 86, no. 2: 689-710.

Journal article
Published: 12 January 2019 in Sustainability
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“Dock Village” terrain is, as its name implies, a region that contains settlements reminiscent of docks, in terms of their elongated shape, their outward upward tilt, and their location in the center of low, wide valleys. Dock village terrain features deep, fertile soil suitable for farming. Taihu Lake contains a number of classic examples of dock villages. Dock villages are relatively independent and hidden, characteristics that not only play a role in security and defense, but also, more importantly, are associated with enhanced climate adaptability, a relative lack of cold weather, and equable levels of heat and humidity. The dock village reflects the wisdom and distillation of traditional Chinese ecological practices and is highly valued as a research topic. Based on microclimate theory and ENVI-met software, four microclimate indices, namely, air temperature, wind speed, wind direction, and relative humidity, were simulated and analyzed in this study. The correlation between spatial characteristics and microclimate was studied from four perspectives: plane space, cross-section space, vertical section space, and linear development space. This research summarizes the historical context and evolution of the dock village spatial form in the construction of contemporary human settlements. It also provides scientific suggestions for the protection and sustainable development of ancient villages.

ACS Style

Kun Ma; Xiaolan Tang; Yujie Ren; Yiwen Wang. Research on the Spatial Pattern Characteristics of the Taihu Lake “Dock Village” Based on Microclimate: A Case Study of Tangli Village. Sustainability 2019, 11, 368 .

AMA Style

Kun Ma, Xiaolan Tang, Yujie Ren, Yiwen Wang. Research on the Spatial Pattern Characteristics of the Taihu Lake “Dock Village” Based on Microclimate: A Case Study of Tangli Village. Sustainability. 2019; 11 (2):368.

Chicago/Turabian Style

Kun Ma; Xiaolan Tang; Yujie Ren; Yiwen Wang. 2019. "Research on the Spatial Pattern Characteristics of the Taihu Lake “Dock Village” Based on Microclimate: A Case Study of Tangli Village." Sustainability 11, no. 2: 368.

Article
Published: 09 October 2018 in GeoJournal
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This article takes 31 provincial administrative units in China as the research object, selects a number of disaster index, and uses AHP method to weight the absolute index and relative index of disasters in China during 2010–2016, respectively, so that the intensity of disasters and the regional The degree of influence was quantified; spatial spatio-temporal evolution characteristics of natural disasters in China were analyzed using spatial interpolation analysis, time series analysis, and gravity model; Spearman correlation analysis was used to analyze waste water, waste gas, solid waste, and urban gardens. In terms of afforestation and other aspects, a number of social factors are selected to analyze the correlation between these social factors and the changes in disaster conditions. The research shows that in the study period, the southwestern region of China is the region with the highest intensity of disasters, and the northwest and southwest regions are the regions with the deepest degree of disaster impact; the degree of disasters has spatial clustering in time series, in which the disaster situation presents Rise-Down-Rise. The center of China’s absolute index of disasters is mainly located at the junction of Hubei, Shaanxi, and Sichuan. The relative index spatial center is located in the southeast of Shaanxi Province and the northern part of Chongqing. In the social elements, chemical oxygen demand emissions, sulfur dioxide emissions, industrial solid waste discards and disposal of domestic waste and park green space. The area and urban afforestation coverage are generally related to the disaster index. Among them, the greater the discharge of waste water, waste air and solid waste, the greater the intensity of the disaster; the larger the green area of the city, the greater the amount of solid waste disposal, and the lower the impact of the disaster on the development of the area.

ACS Style

Naijing Guo; Yujie Ren; Xiaolan Tang. The temporal and spatial evolution of natural disasters in China. GeoJournal 2018, 84, 1515 -1530.

AMA Style

Naijing Guo, Yujie Ren, Xiaolan Tang. The temporal and spatial evolution of natural disasters in China. GeoJournal. 2018; 84 (6):1515-1530.

Chicago/Turabian Style

Naijing Guo; Yujie Ren; Xiaolan Tang. 2018. "The temporal and spatial evolution of natural disasters in China." GeoJournal 84, no. 6: 1515-1530.