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[1]DONG Si,REN Zhiyuan,WEI Qianqian.Analysis on the Temporal and Spatial Difference of Land Comprehensive Carrying Capacity in Ecologically Fragile Area-A Case Study of Yulin City[J].Research of Soil and Water Conservation,2017,24(06):286-291,299.

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Analysis on the Temporal and Spatial Difference of Land Comprehensive Carrying Capacity in Ecologically Fragile Area-A Case Study of Yulin City

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 06 Page number: 286-291,299 Column: Public date: 2017-11-24

Title:: Analysis on the Temporal and Spatial Difference of Land Comprehensive Carrying Capacity in Ecologically Fragile Area-A Case Study of Yulin City

Author(s):: DONG Si¹, REN Zhiyuan^1,2, WEI Qianqian¹; 1. College of Tourism and Environment Sciences, Shaanxi Normal University, Xi’an 710119, China;
2. Northwest Land and Resource Research Center, Xi’an 710119, China

Keywords:: land comprehensive carrying capacity; temporal difference analysis; Yulin City

CLC:: F301.24

DOI:: -

Abstract:: The typical urban ecological fragile area-Yulin City was chosen as the example. A total of 30 indicators in relation to the social, economic, land and water resources, science and technology, environment five bearing system were selected, and weight evaluation index weights resulted from the right combination of AHP decision analysis method and entropy method was used to analyze the temporal and spatial variation of land comprehensive carrying capacity of Yulin City from 1990 to 2012, and the limiting factors of county land comprehensive carrying capacity were gained. The final conclusions are as follows. (1) During 1990 and 2012, land comprehensive carrying capacity in Yulin Prefecture presented the fluctuating upward trend, regional and county land comprehensive carrying capacities were quite different. Limiting factors of the land comprehensive carrying capacity were different between the counties. (2) Land comprehensive carrying capacities in each county of Yulin were overload and in 1990. The maximum was in Sude county and the minimum was in Hengshan county. Land comprehensive carrying capacities show slowly upward trend in 2000. Similarly, the maximum was in Yuyang County and the minimum was still in Hengshan county. Fortunately, Land Comprehensive Carrying Capacities increase dramatically. The maximum were in Shenmu County and the minimum was in Jia county. (3) Limiting factors of the land comprehensive carrying capacity were different between the counties. In 1990 the main limiting factor was the science and technology system; in 2000, the main limiting factor was the economic system; in 2012, the main limiting factor was water and land resources and science and technology system. In order to ensure the sustainable development of county land resources, it was recommended to protect environment and develop technology.

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