乌江上游地区森林生态系统水源涵养功能评估及其空间差异探究
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唐玉芝, 邵全琴
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Water Conservation Capacity of Forest Ecosystem and Its Spatial Variation in the Upper Reaches of Wujiang River
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TANG Yuzhi,SHAO Quanqin
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表4 水源涵养能力和坡度的回归方程及相关系数 |
Tab.4 The regression equations and correlation coefficients of water conservation capacity and slope gradient |
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代码 | 森林类型 | 回归方程 | 相关系数R2 | P | Ⅰ | 温性针叶林 | y = -2.5116x + 938.62 | 0.765 | * | Ⅱ | 暖性针叶林 | y = -0.8702x + 831.01 | 0.378 | | Ⅲ | 暖性针阔混交林 | y = -3.8570x +1002.48 | 0.583 | | Ⅳ | 落叶阔叶林 | y = -2.6220x + 787.02 | 0.803 | * | Ⅴ | 常绿落叶阔叶混交林 | y = -0.8110x + 948.23 | 0.106 | | Ⅵ | 常绿阔叶林 | y = -1.2000x + 727.78 | 0.348 | | Ⅶ | 暖性竹林 | y = -7.1497x + 991.73 | 0.744 | * | Ⅷ | 经济林 | y = -4.8133x + 998.49 | 0.582 | | Ⅸ | 灌丛 | y = -0.5153x + 687.96 | 0.136 | | | 研究区整体 | y = -2.4350x + 828.09 | 0.910 | ** |
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