On models for landscape connectivity: a case study of the new-born wetland of the Yellow River Delta   总被引：1，自引：0，他引：1  

Yue Tian-xiang  Ye Qing-hua  Liu Qing-sheng  Gong Zheng-hui 《地理学报(英文版)》2002,12(2):186-195

The models for landscape connectivity are distinguished into models for line connectivity, vertex connectivity, network connectivity and patch connectivity separately. Because the models for line connectivity, for vertex connectivity, and for network connectivity have long been studied and have become ripe, the model for patch connectivity is paid special attention in this paper. The patch connectivity is defined as the average movement efficiency (minimizing movement distance) of animal migrants or plant propagules in patches of a region under consideration. According to this definition, a model for landscape connectivity is mathematically deduced to apply to GIS data. The application of model for patch connectivity in the new-born wetland of the Yellow River Delta shows patch connectivity has a negative interrelation with human impact intensity and landscape diversity.  相似文献   

土地利用变化时空模型的图谱方法--以黄河三角洲为例   总被引：12，自引：0，他引：12  

叶庆华  田国良  刘高焕  YE Jingmin  YAO Xin  LIU Qingsheng  LOU Weiguo  WU Shuguang 《地理学报(英文版)》2004,14(2):131-142

Changesinlandcoverandland-usehaveimpactsandimplicationsatlocal,regionalandglobalscalesbecauseofthewaytheyalterbiophysical,biogeochemicalandhydrologicalstatesandprocesses(Alcamoetal.,1996;Li,1996).Since1990,scientistsathomeandabroadhavebeenpayingattentiontoresearchesonland-useandland-coverchange(LUCC)(Turneretal.,1990;MeyerandTurner,1994),butresearchisnotenoughon"spaceandprocess"ofLUCC(Turneretal.,1995).Spatialrelationshipbetweenvariablesyethasnotbeenestablished(Bockstael,1996).Soitispara…  相似文献