期刊论文

Landscape ecological security evaluation and temporal-spatial change in ecologically sensitive areas:case of Shiyan City,Hubei Province

中文

人民长江

1001-4179

2018

49

23

32-37

10.16232/j.cnki.1001-4179.2018.23.006

2016YFC0503506:国家重点研发计划 41771493:国家自然科学基金 41101407:国家自然科学基金 2014CFB377:湖北省自然科学基金 2010CDZ005:湖北省自然科学基金 2016070204010137:武汉市青年科技晨光计划 CC-NU15A02001:中央高校基本科研业务费专项华中师范大学项目

本校为第一机构

以中部生态敏感脆弱区十堰市为研究对象,综合运用GIS技术和景观生态学方法,对研究区进行了景观类型变化特征的分析,并选取与人为干扰密切相关的破碎度、多样性指数、分维数和分离度作为评价指标,构建区域景观生态安全评价模型,对该区域生态安全进行了综合评价与时空变化分析,最后探讨了其变化的驱动因素。结果表明:研究区内景观类型以林地和耕地为主,而其中又以林地为优势景观;各景观之间的相互转换都比较频繁,其中又以耕地和林地两者之间的转换幅度最大;十堰市的景观生态安全整体处于较高的水平,但在空间分布上差异很大;十堰市近20 a来景观生态安全有所变化,且变化的时空差异较大;景观类型变化...

Shiyan City,situated in ecologically sensitive region of central China,was selected as research subject to analyze change characteristics in landscape types by GIS technology and landscape ecology method. We constructed a regional landscape security evaluation model by selecting the parameters such as fragmentation,diversity indexes,fractal dimension and resolution that are closely related to human interference. By the model,we evaluated the regional security and analyzed its temporal-spatial changes as well as its driving factors. The results showed that forestland and cropland are the major ...