山水林田湖草沙研究态势

孙平安然, 任珩, 贾信, 马碧峰, 周涛, 赵文智

Research trends on mountain-rivers-forests-farmlands- lakes-grassland-desert system

Pinganran Sun, Heng Ren, Xin Jia, Bifeng Ma, Tao Zhou, Wenzhi Zhao

表4 WOS文献中频次及中介中心性Top15关键词

Table 4 Top15 keywords by frequency and betweenness centrality in WOS in “mountains， rivers， forests， farmlands， lakes， grasslands， deserts” research

序号 按照频次排序 按照中心性排序 关键词 频次 中心性 关键词 频次 中心性 1 ecosystem services 45 0.16 conservation 26 0.36 2 ecological restoration 28 0.22 climate change 28 0.26 3 climate change 28 0.26 ecological restoration 28 0.22 4 conservation 26 0.36 ecosystem services 45 0.16 5 loess plateau 19 0.05 afforestation 5 0.14 6 biodiversity 17 0.13 biodiversity 17 0.13 7 dynamics 13 0.07 basin 10 0.10 8 land use 11 0.06 desertification 2 0.10 9 forest 11 0.03 degradation 10 0.09 10 basin 10 0.10 dynamics 13 0.07 11 degradation 10 0.09 coastal wetlands 3 0.07 12 carbon storage 10 0.03 land use 11 0.06 13 soil erosion 9 0.03 loess plateau 19 0.05 14 landscape 7 0.02 converting cropland 1 0.04 15 invest model 6 0.01 cost effectiveness 1 0.04