山水林田湖草沙研究态势
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孙平安然, 任珩, 贾信, 马碧峰, 周涛, 赵文智
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Research trends on mountain-rivers-forests-farmlands- lakes-grassland-desert system
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Pinganran Sun, Heng Ren, Xin Jia, Bifeng Ma, Tao Zhou, Wenzhi Zhao
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表4 WOS文献中频次及中介中心性Top15关键词
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Table 4 Top15 keywords by frequency and betweenness centrality in WOS in “mountains, rivers, forests, farmlands, lakes, grasslands, deserts” research
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| 序号 | 按照频次排序 | 按照中心性排序 |
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| 关键词 | 频次 | 中心性 | 关键词 | 频次 | 中心性 |
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| 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 |
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