西北干旱地区绿洲城市土地生态安全动态评价——以新疆库尔勒市为例

发布时间：2018-01-15 20:07

本文关键词：西北干旱地区绿洲城市土地生态安全动态评价——以新疆库尔勒市为例　出处：《干旱区地理》2017年01期 　论文类型：期刊论文

【摘要】：土地生态安全是一个地区生存和发展的核心。以新疆第二大城市库尔勒市为研究靶区,运用三角模型,建立评价指标体系,通过熵权法计算各指标的权重,分别计算得到EI、NSI、NREI三组综合指数,在此基础上计算出各指标的影响度。从时间序列上对"十二五"规划期间内库尔勒市土地生态安全状况进行评价,并对其主要影响因子进行分析。结果表明:(1)库尔勒市土地生态安全综合指数呈现极不安全-较不安全的趋势。(2)影响库尔勒市土地生态安全的限制性因子主要是人口城市化水平、一般工业固体废物产生量以及排水管道密度。综上所述,库尔勒市土地生态安全现状极不安全,此研究将为改善生态状况提供科学依据。
[Abstract]:Land ecological security is the core of the survival and development of a region. Taking Korla, the second largest city in Xinjiang, as the research target area, using triangular model, the evaluation index system is established, and the weight of each index is calculated by entropy weight method. The three groups of composite indices of EINSINREI were calculated respectively. On the basis of this, the influence degree of each index is calculated. From the time series, the land ecological security situation of Kurla city is evaluated in the period of the 12th Five-Year Plan. The results show that the comprehensive index of land ecological security in Kurla shows an extremely unsafe and unsafe trend. The limiting factor affecting the ecological security of land in Korla is the urbanization level of population. In summary, the present situation of land ecological security in Kurla is extremely unsafe, and this study will provide scientific basis for improving the ecological situation.
【作者单位】：新疆大学资源与环境科学学院绿洲重点实验室;
【分类号】：F323.22
【正文快照】： 近年来,我国社会经济总体高速发展,现已逐渐进入到趋于稳定的状态。然而在高速发展过程中,城市化水平短时间内大幅上升,对城市及城市周边的生态环境造成不同程度的影响。在此背景下,生态安全研究是土地可持续利用的核心与基础[1],土地生态安全是生态安全细分领域的重要部分,关

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