2018年05期


张莹,张学玲,蔡海生.基于景观格局的武功山生态脆弱性动态演变与调控对策研究[J].江西农业大学学报, 2018, 40(05): 1021-1029. doi:http://dx.doi.org/10.13836/j.jjau.2018128

ZHANG Ying,ZHANG Xue-ling,CAI Hai-sheng.Dynamic Evolvement and Adjustment of Ecological Vulnerability in Wugong Mountain Based on Landscape Pattern[J].ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS, 2018, 40(05): 1021-1029. doi:http://dx.doi.org/10.13836/j.jjau.2018128

基于景观格局的武功山生态脆弱性动态演变与调控对策研究

张莹 已出版文章查询
张莹
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1 张学玲 已出版文章查询
张学玲
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蔡海生
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+ 作者地址

1江西农业大学 鄱阳湖流域农业资源与生态重点实验室, 江西 南昌 330045;

2江西农业大学 职业师范学院, 江西 南昌 330045;

3 江西省森林培育重点实验室, 江西 南昌 330045

开展区域土地生态脆弱性时空变化研究对于合理利用土地资源和保护生态环境具有十分重要的指导意义。以江西省武功山为研究区,运用1995年、2015年两期遥感影像数据,在分析生态脆弱性概念与评价方法的基础上,依循“压力-状态-响应”评估框架,采用熵权法和景观格局指数法从生态压力度、敏感度、恢复力3个方面构建生态脆弱性评价模型,基于格网尺度对武功山生态脆弱性进行动态评价和分析。结果表明:(1)1995年各景观类型的脆弱度由高到低依次是耕地、林地和草地,而2015年各景观类型的脆弱度由高到低依次是耕地、草地和林地;(2)由武功山1995年、2015年生态脆弱性变化图可知,研究区生态良好区面积比重减少,由1995年占全区面积的86.08%减少到2015年的50.26%,轻、中、高脆弱区占全区面积比重增加,土地生态脆弱性不断加剧;(3)武功山1995-2015年生态脆弱性级别类型重心转移图表明:生态良好区逐渐向东北方向移动,而轻微脆弱区、中度脆弱区、高度脆弱区和极度脆弱区四区逐渐向东南方向移动。
语种:     中文   
基金:     国家科技支撑计划子课题(2012BAC11B06)、国家自然科学基金项目(31560150、31660140)、江西...
关键词:     武功山 景观类型 生态脆弱性 重心变化

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