林业科学2017，Vol.53Issue(10)：168-174,7.DOI:10.11707/j.1001-7488.20171019
扎龙湿地丹顶鹤种群空间分布动态的点模式分析
Distribution Dynamics of Red-Crowned Crane Population in Zhalong Wetland by the Point Pattern Analysis
摘要
Abstract
[Objective]Distribution patterns and changes of a red - crowned crane population can reveal the population characteristics,and the habitat quality. This study,therefore,is of significant importance for providing theoretical basis for the protection of habitat of Red Crowned Crane population in the study area. [Method]The Zhalong Wetlands,a famous national nature reserve (NNR),was taken as a case study. L(d) index model and local G-statistics methods were applied to study the distribution patterns and spatial-temperal changes of the population at the global and local spatial scale with ArcGIS10. 2 for 30 years since the Zhalong NNR was set up in 1981.[Result]The results showed: 1) The changes of spatial distribution pattern of red-crowned cranes were divided into three stages in global spatial distribution pattern from 1981 to 2008: the pattern was uniform distribution or random distribution during the period from 1981 to 1990; aggregated distribution from 1996 to 2005; and uniform distribution or random distribution from 2006 to 2008; 2) The spatial pattern of the red-crowned crone population underwent dramatic changes from random distribution pattern to aggregated pattern and to random distribution again; 3) On the local pattern,changes occurred from scattered pattern to aggregated pattern,to scattered,and to aggregated pattern again; 4) the spatial patterns had distinct scale-dependent effect.[Conclusion]The spatial pattern of the red-crowned crane population mainly presents a tendency from uniform distribution to aggregated distribution,and the aggregated degree is increasing in the global pattern. In local pattern,the local aggregated degree of red-crowned cranes'nest-sites incremented,the hot spots of high aggregation are mainly in the core area,while their positions change dramatically. The whole habitat quality of the study area is deteriorating,however the habitat quality in core area maintains well. The local habitat quality changes drastically,and the habitat has undergone fragmentation.关键词
种群/分布模式/多距离空间聚类分析方法/局部G-统计量/GISKey words
population/red-crowned crane/distribution pattern/L(d) index/G-statistics/ArcGIS分类
生物科学引用本文复制引用
王志强,徐欢欢,徐伟义,林剑,刘贤赵,李振国,朱佳文..扎龙湿地丹顶鹤种群空间分布动态的点模式分析[J].林业科学,2017,53(10):168-174,7.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07204 - 004 - 002) （2012ZX07204 - 004 - 002）
湖南省教育厅科学研究项目(15C0529) . （15C0529）
