摘要
基于1996和2004年扎龙湿地丹顶鹤生境因子专题图,通过建立生境适宜性模型和种群格局最邻近体模型,定量分析了扎龙湿地丹顶鹤繁殖生境质量的变化.结果表明:研究期间,扎龙湿地丹顶鹤繁殖适宜生境经历了面积丧失和功能丧失过程;2004年,研究区内丹顶鹤繁殖适宜性生境已大量丧失,核心区繁殖适宜生境已经严重斑块化.丹顶鹤繁殖生境选择行为对生境质量变化的响应表现为两个过程:一是丹顶鹤巢址不断向核心区集中的过程,二是在核心区的分布格局经历了从均匀分布到成群分布的生态过程.
Based on the maps of habitat factors in Zhalong wetlands in 1996 and 2004,two models called habitat suitability index model and nearest neighbor analysis model were established to quantitatively analyze the changes of reproduction habitat quality of red-crowned crane in Zhalong wetlands.The results showed that in 1996-2004,the suitable reproduction habitats of red-crowned crane in the wetlands experienced both area loss and functional loss.By the end of 2004,the suitable habitats in the study area lost greatly,and those in core area undergone serious fragmentation.Consequently,the habitat-selection behaviors of red-crowned crane responded in two ways：one was the centralization of nests towards core area,and the other was the spatial distribution pattern changed from uniform to aggregative.
出处
《应用生态学报》
CAS
CSCD
北大核心
2010年第11期2871-2875,共5页
Chinese Journal of Applied Ecology
基金
全球环境基金项目(GEF:GF/2712-03)
江苏省资源环境信息工程重点实验室(中国矿业大学)开放基金项目(20080202)
河南省科技计划重点攻关项目(102102310364)资助
关键词
生境适宜性评价
分布格局
斑块化
丹顶鹤种群
扎龙国家级保护区
habitat suitability evaluation
distribution pattern
fragmentation
red crowned crane population
Zhalong National Natural Reserve.
