生态脆弱区社会—生态景观恢复力时空演变及情景模拟

被引:60
作者
张行
梁小英
刘迪
史琴琴
陈海
机构
[1] 西北大学城市与环境学院
关键词
社会—生态景观; 景观恢复力; 时空演变; 情景模拟; 生态脆弱区;
D O I
暂无
中图分类号
X171.4 [生态建设与生态恢复]; TU986 [园林规划与建设];
学科分类号
083302 [城乡规划与设计方法]; 090105 [作物生产系统与生态工程];
摘要
从最具操作性的景观尺度探究社会—生态系统恢复力的时空分异及其演变,对于揭示人类活动变化对生态环境及其景观服务的影响机制,促进区域可持续发展意义重大。以黄土丘陵沟壑区米脂县作为典型案例地,从生态、社会、生产3个系统维度构建社会—生态景观恢复力评价指标体系,分析研究区各子系统和整体社会—生态景观恢复力时空演变及其相互关系。结果显示:①研究区2000-2015年社会—生态景观3子系统恢复力空间分异显著且都有增强。其中,"退耕还林"第1阶段(2000-2009年)增强突出,生态、社会、生产三系统恢复力指数分别上升0.134、0.048、0.028;第2阶段(2009-2015年)增强相对减缓,生态、社会、生产三系统恢复力指数分别上升0.038、0.017、0.021。②总体社会—生态景观恢复力空间分异同样显著,其恢复力指数上升11.60%,呈现中间高东西低的空间格局。③子系统与整体景观系统恢复力变化之间有主导性正向关系,且3个子系统恢复力变化协同关系显著,两个或三个系统协同率达到90%以上。最后,运用有序加权平均法,基于干扰指标与适应能力指标的不同权重设置情景偏好,绘制出"不可持续导向型""维持现状型"和"可持续导向型"3种情景下的社会—生态景观恢复力模拟图,为区域景观适应性管理提供决策支持。
引用
收藏
页码:1450 / 1466
页数:17
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