基于卫星影像和GIS模型研究人类活动造成牧场退化的可视化和量化分析——以伊朗北部为例（英文）

编号 zgly0001648694

文献类型 期刊论文

文献题名 基于卫星影像和GIS模型研究人类活动造成牧场退化的可视化和量化分析——以伊朗北部为例（英文）

作者 OMIDAbdi  ZEINABShirvani  MANFREDF.Buchroithner 

作者单位 InstituteforCartography  GeosciencesDepartment  TUDresden 

母体文献 Journal of Geographical Sciences 

年卷期 2018年12期

年份 2018 

分类号 S818.9 

关键词 rangelanddegradation  Landsat  GIS  anthropogenicdrivingforces  BiLISA  spatialregression 

文摘内容 Developing countries must consider the influence of anthropogenic dynamics on changes in rangeland habitats. This study explores happened degradation in 178 rangeland management plans for Northeast Iran in three main steps:(1) conducting a trend analysis of rangeland degradation and anthropogenic dynamics in 1986–2000 and 2000–2015,(2) visualizing the effects of anthropogenic drivers on rangeland degradation using bivariate local spatial autocorrelation(BiLISA), and(3) quantifying spatial dependence between anthropogenic driving forces and rangeland degradation using spatial regression approaches. The results show that 0.77% and 0.56% of rangelands are degraded annually during the first and second periods. The BiLISA results indicate that dry-farming, irrigated farming and construction areas were significant drivers in both periods and grazing intensity was a significant driver in the second period. The spatial lag(SL) model(wi=0.3943, Ei=1.4139) with two drivers of dry-farming and irrigated farming in the first period and the spatial error(SE) model(wi=0.4853, Ei=1.515) with livestock density, dry-farming and irrigated farming in the second period showed robust performance in quantifying the driving forces of rangeland degradation. To conclude, the BiLISA maps and spatial models indicate a serious intensification of the anthropogenic impacts of ongoing conditions on the rangelands of northeast Iran in the future.