西江流域生态脆弱性时空分异及其驱动机制研究
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王钰, 胡宝清
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Spatial and Temporal Differentiation of Ecological Vulnerability of Xijiang River in Guangxi and Its Driving Mechanism
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WANG Yu,HU Baoqing
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| 表4 各主成分的特征值、贡献率及累计贡献率表 |
| Tab. 4 Eigenvalue, contribution rate and accumulated contribution rate of principal components |
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| 年份 | 主成分系数 | 主成分 | | PC1 | PC2 | PC3 | PC4 | PC5 | | 2000 | 特征值 λ | 0.0390 | 0.0219 | 0.0155 | 0.0095 | 0.0073 | | 贡献率/% | 37.4154 | 21.0766 | 14.8903 | 9.1736 | 7.0614 | | 累计贡献率/% | 37.4154 | 58.4920 | 73.3823 | 82.5559 | 89.6173 | | 2005 | 特征值 λ | 0.0362 | 0.0198 | 0.0105 | 0.0087 | 0.0079 | | 贡献率/% | 38.4644 | 20.9905 | 11.2189 | 9.2838 | 8.4047 | | 累计贡献率/% | 38.4644 | 59.4549 | 70.6738 | 79.9575 | 88.3623 | | 2010 | 特征值 λ | 0.0377 | 0.0224 | 0.0100 | 0.0089 | 0.0080 | | 贡献率/% | 37.1375 | 22.0626 | 9.8852 | 8.7832 | 7.8885 | | 累计贡献率/% | 37.1375 | 59.2001 | 69.0854 | 77.8686 | 85.7570 |
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