| 毛竹林林内雨,冠层截留与降水的关系研究 |
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| 引用本文： | 刘永敏 王彦辉. 毛竹林林内雨,冠层截留与降水的关系研究[J]. 竹子研究汇刊, 1993, 12(2): 55-62 |
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| 作者姓名： | 刘永敏 王彦辉 |
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| 作者单位： | 中国林科院林业研究所生态室，中国林科院林业研究所生态室 北京 100091，北京 100091 |
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| 基金项目： | 毛竹林生态定位研究课题 |
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| 摘 要： | 经过三年对人工毛竹林水文系统的研究结果表明:毛竹林内穿透雨和竹秆茎流与林外降水呈线性回归关系,并且发现,在不同生长季其回归关系有差别。毛竹林冠层截留量与降水呈指数回归,相关式为I=A[1-exp(-bP)]的形式,其中A为一次降水的最大冠层截留量。毛竹林的冠层截留率低于同地区的杉木林。对降水,穿透水和茎流水水质的研究表明:毛竹林冠层对养分元素的输入有较大影响,林内穿透水中养分含量明显高于林外降水中的含量。
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| 关 键 词： | 毛竹林(Phyllostachys pubescens)降水 穿透水 茎流 冠层截留 |
STUDY ON THE INTERRELATIONS OF PRECIPITATION WITH THROUGHFALL AND CROWN INTERCEPTION IN PH. PUBESCENS PLANTATION |
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| Liu Yongmin Wang Yanhui. STUDY ON THE INTERRELATIONS OF PRECIPITATION WITH THROUGHFALL AND CROWN INTERCEPTION IN PH. PUBESCENS PLANTATION[J]. Journal of Bamboo Research, 1993, 12(2): 55-62 |
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| Authors: | Liu Yongmin Wang Yanhui |
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| Affiliation: | The Research Institute of Forestry CAF |
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| Abstract: | We have studied hydrological system of Ph. Pubescens plantation for three years. The results show that throughfall and culm steamflow is linear with precipitation, the relational operator is different from seasonal changes. Crown interception is Mitscherlich curve with precipitation, the eqution is I=A(1-exp(-bP)). Factor A is the largest interception. Compared with Chinese fir plantation, the interception is lower. Chemical analysis on the major elements of precipitation, throughfall and stream is shown that: input of nutrient elements is effected markedly by the crown; element content of throughfall is more than that of precipitation. |
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| Keywords: | Phyllostachys pubescens Precipitation Throughfall Crown interception |
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