期刊论文

Analysis on the Evolution of Ecological Security Pattern in Wuling Mountain

中文

地球信息科学学报

1560-8999

2016

18

3

315-324

10.3724/SP.J.1047.2016.00315

国家科技支撑计划课题“扶贫空间信息系统关键技术及其应用”（2012BAH33B00） 衡阳师范学院***启动基金项目（15B11）

本校为第一机构

本文依据武陵山区遥感调查数据及社会经济统计数据,运用灰色关联度模型计算2000年和2010年生态安全综合指数,并对研究区生态安全综合指数的时空演变特征进行分析。结果表明:(1)2000年研究区生态安全综合指数处于Ⅲ级临界安全和Ⅱ级较差安全水平,2010年生态安全综合指数整体处于Ⅲ级临界安全水平之上;(2)2期Moran's I指数分别为0.3828及0.4411,P值均小于0.01,生态安全综合指数在空间上表现出较强正相关,存在空间聚集性,且2010年聚集性更强;(3)武陵山区2期生态安全综合指数空间分布出现较大变化,且都呈现高值、低值聚集;(4)生态安全综合指数与扶贫人口比例及森林覆盖率呈正相关,与农民人均纯收入没...

With the rapid growth of global economy and population, the ecological environment was severely influenced by the human activity, and the excessive human exploitation of resources has brought continuously increasing pressure to resources and environment. As a result, a series of global ecological problems were caused, such as resource wars, environmental pollution, ecological refugees and environmental health problems. The ecological environmental problem has been a serious threat to our country's economic development and human life security. Meanwhile, the ecological security has gradually be...