Fraction of incident rainfall within the canopy of a pure stand of Pinus armandii with revised Gash model in the Liupan Mountains of China

被引:57
作者
Shi, Zhongjie [1 ,2 ]
Wang, Yanhui [1 ]
Xu, Lihong [1 ]
Xiong, Wei [1 ]
Yu, Pengtao [1 ]
Gao, Jixi [2 ]
Zhang, Linbo [2 ]
机构
[1] Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China
[2] Chinese Res Inst Environm Sci, Inst Ecol & Environm, Beijing 100012, Peoples R China
基金
中国国家自然科学基金;
关键词
Interception; Throughfall; Stemflow; Revised Gash analytical model; Pinus armandii; INTERCEPTION LOSS; NORTHERN QUEENSLAND; FOREST; THROUGHFALL; COASTAL;
D O I
10.1016/j.jhydrol.2010.02.003
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The throughfall, stemflow and interception during the growing season (June-September) of 2005 were observed in a pure stand of natural Pinus armandii forest in the Liupan Mountains of northwestern China. The results indicate that of the 544.0 mm of cumulative gross rainfall generated by 15 sampled events, throughfall, stemflow and canopy interception were 462.2 mm (84.96%), 4.8 mm (0.88%), and 77.0 mm (14.15%), respectively. The revised Gash analytical model of rainfall interception was employed and the simulated interception values were close to the observed with an underestimation of 5.87%. Moreover, 39.48% and 55.24% of interception were evaporated from canopy in the stages of "during storms" and "after storms", respectively. The revised Gash analytical model is highly sensitive to changes regarding canopy storage capacity (S), cover (c) and the climate parameters of rainfall intensity R and evaporation (E) over bar. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:44 / 50
页数:7
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