基于ESDA的甘肃省水资源承载力空间格局分析
首发时间:2015-03-18
摘要:随着社会经济和人口规模的快速增长,甘肃省对水资源的需求量也在不断增加,全面了解各地区的水资源承载力水平及其在空间上的分布格局,对于实现水资源的有效管理和合理配置具有重要的意义 。本文通过构建综合评价指标体系,对甘肃省市域水资源承载力水平进行测度,并运用ESDA模型找出其空间分布特征。结果表明:水资源系统对承载力水平的影响最大,生态系统的影响最小;甘肃省整体水资源承载力水平较低,但有逐渐转好的趋势;承载力水平在空间上呈较明显的东西空间分异特征,水平较高的区域主要集聚在河西地区,水平较低的区域主要集聚在甘肃省中东部地区,且在时间序列上表现出较为稳定的空间演变特征。
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Spatial Pattern Analysis of Water Resources Carrying Capacity in Gansu Province Based on ESDA
Abstract:With the rapid growth of social economy and population, the demand for water is increasing in Gansu Province. Comprehensive understanding of the regional water resources carrying capacity and its distribution pattern in space is meaningful, of which is great importance for water resources effective management and reasonable allocation. By constructing a comprehensive index system, the paper measured the water resources carrying capacity of the cities in Gansu Province. And applied ESDA model to find out the spatial distribution. The results show that the water resources system's influence on carrying capacity is great and the ecosystem's is minimal. The water resources carrying capacity of Gansu Province is low, but it takes a favorable turn gradually. The carrying capacity is very different between the east and the west, and the spatial evolution is stable. The high level area mainly gathered in Hexi region, and the low level area gathered in east-central Gansu Province.
Keywords: Water resources Carrying capacity EADA Gansu Province
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