[1]董思,任志远,魏倩倩.生态脆弱区土地综合承载力时空差异分析——以榆林市为例[J].水土保持研究,2017,24(06):286-291,299.
　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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生态脆弱区土地综合承载力时空差异分析——以榆林市为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年06期 页码: 286-291,299 栏目: 出版日期: 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
作者:
董思1, 任志远1,2, 魏倩倩1
1. 陕西师范大学 旅游与环境学院, 西安 710119;
2. 西北国土资源研究中心, 西安 710119
Author(s):
DONG Si1, REN Zhiyuan1,2, 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
关键词:
土地综合承载力; 时空差异变化; 层次分析法; 榆林市
Keywords:
land comprehensive carrying capacity; temporal difference analysis; Yulin City
分类号:
F301.24
摘要:
以生态脆弱区的典型城市榆林市为例，从社会、经济、水土资源、科技、生态环境5个承载系统共选取30个指标，并利用AHP决策分析法与熵权法的组合权重确定各评价指标权重，分析了1990-2012年榆林市土地综合承载力的时空变化，并得出了各县区土地综合承载力的限制因子，结果表明：（1）1990-2012年期间，榆林地区土地综合承载力呈波动上升趋势，且各县区域土地综合承载力差异较大。（2）1990年时，榆林各县土地综合承载力都处于严重超载和临界超载的状态，最大值为绥德县，最小值为横山县；2000年时，土地承载力有了不同程度的增加，但是增幅不大，最大值为榆阳区，最小值为横山县；2012年时，各县土地综合承载力有了很大的提高，最大值为神木县，最小值为佳县。（3）各县区的土地综合承载力的限制因子差别较大。在1990年时限制因子主要是科技系统；到2000年时，限制因子主要是经济系统；到2012年时，限制因子主要是水土资源和科技系统。因此，榆林市应以保护环境和发展科技为关键，带动和维护社会，经济等的协调发展。
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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备注/Memo

收稿日期:2016-07-26;改回日期:2016-08-05。
基金项目:国家自然科学基金（41371523）；教育部人文社会科学重点研究基地项目（14JJD840004）
作者简介:董思(1992-),女,湖北荆州人,硕士研究生,主要研究方向为土地评价与规划。E-mail:z418.com@qq.com
通讯作者:任志远(1953-),男,陕西兴平人,教授,博导,主要研究方向为遥感、地理信息系统与国土资源开发。E-mail:renzhy@snnu.com

更新日期/Last Update: 1900-01-01