| 用灰色关联法分析森林生态系统植被状况对地表径流系数的影响 |
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| 引用本文： | 闫俊华,周国逸,申卫军.用灰色关联法分析森林生态系统植被状况对地表径流系数的影响[J].应用与环境生物学报,2000,6(3):197-200. |
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| 作者姓名： | 闫俊华 周国逸 申卫军 |
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| 作者单位： | 中国科学院华南植物研究所,广州,510650 |
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| 基金项目： | 国家自然科学基金!(No :3970 0 112、3992 80 0 7),中国科学院生物技术特别支持院“九五”重大项目!(KZ95 1 B1 110 0 4) |
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| 摘 要： | 运用灰色关联法对南亚热带鹤山丘陵试验站４种森林生态系统植被状况影响地表径流系数进行了定量分析,结果表明：对于本文所选取的植被状况参数对地表径流系数影响的大小顺序是：枯落叶层厚度〉草本层盖度〉灌木层盖度〉林分高;４种森林生态系统的植被状况对地表径流系数的影响,马占相思林最大,平权关联度与非平权灰关联度分别为０．７８２和０．７６６;林果苗系统最小,平权关联度与非平权灰关联度分别为０．５３２和０．５３５
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| 关 键 词： | 灰色关联 森林生态系统 植被状况 地表径流系统 |
GREY CORRELATION ANALYSIS OF THE EFFECT OF VEGETATION STATUS ON SURFACE RUNOFF COEFFICIENT OF FOREST ECOSYSTEMS |
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| YAN Junhua,ZHOU Guoyi,SHEN Weijun.GREY CORRELATION ANALYSIS OF THE EFFECT OF VEGETATION STATUS ON SURFACE RUNOFF COEFFICIENT OF FOREST ECOSYSTEMS[J].Chinese Journal of Applied and Environmental Biology,2000,6(3):197-200. |
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| Authors: | YAN Junhua ZHOU Guoyi SHEN Weijun |
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| Abstract: | Grey
correlation analysis was used to study the effects of vegetation status on surface runoff
coefficient for 4 kinds of forest ecosystems in Heshan Experimental Station. The results
indicate that the order of the effects on surface runoff coefficient by the parameters of
vegetation status is litter layer thickness >herb layer coverage >shrub layer coverage >tree layer coverage >forest height. Acacia mangium forest has the greatest
effect on surface runoff coefficient in the 4 kinds of forest ecosystems. The
equal-weighted grey correlation reading is 0.782 and the unequal-weighted grey correlation
reading 0.766. Forest-fruit-seedling system has the smallest effect on surface runoff
coefficient. The equal-weighted grey correlation reading is 0.532 and the unequal-weighted
grey correlation reading 0.535. So the main status of hydrological function is shown for
Acacia mangium forest. Tab 4, Ref 10 |
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| Keywords: | Grey correlation forest ecosystem vegetation status surface runoff coefficient |
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