中国北方旱区沙漠化的人口暴露度研究
Population exposure to desertification in the drylands of northern China
[目的]沙漠化严重威胁着旱区人民的生活福祉,揭示沙漠化的人口暴露度对客观认识沙漠化风险、改善人地关系有着重要意义。[方法]本文以中国北方旱区为研究区,基于 2000-2020 年净初级生产力和人口数据,在全域和沙漠沙地两个尺度上量化了区域沙漠化时空格局,并评估了沙漠化区域的人口暴露度。[结果]2020 年中国北方旱区沙漠化土地面积 54.79 万km2,占中国旱区总面积的 13.88%,主要分布在毛乌素沙地、库布奇沙漠、古尔班通古特沙漠和浑善达克…查看全部>>
[Objective]The aim of this study was to investigate the effect of the different modes of mixing birch into larch plantation on soil faunal communitiesand functional group in mountain area of northern Hebei,China.[Method]We taking the drylands of northern China as the study area,based on the Net primary productivity(NPP)and population data from 2000 to 2020,quantifies the spatial and temporal patterns of regional desertification at two scales:the whole area a…查看全部>>
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