Modelling interception loss using the revised Gash model: a case study in a mixed evergreen and deciduous broadleaved forest in China

doi:10.1002/eco.1749

	Modelling interception loss using the revised Gash model: a case study in a mixed evergreen and deciduous broadleaved forest in China
	Su, Lei 1; Zhao, Changming ; Xu, Wenting ; Xie, Zongqiang
	2016
发表期刊	ECOHYDROLOGY
ISSN	1936-0584
卷号	9 期号:8 页码:1580-1589
摘要	Interception loss accounts for a substantial portion of incident precipitation and evapotranspiration in forest ecosystems. Hence, identifying its magnitude is crucial for our understanding of biogeochemical cycling and related hydrological processes. In this study, gross rainfall partitioning into interception loss, throughfall and stemflow were measured and modelled using the revised Gash model for a mixed evergreen and deciduous broadleaved forest over the 2014 growing season. Field survey results revealed that interception loss accounted for 14.3% of gross rainfall, while understory rainfall was 84.8% throughfall and 0.9% stemflow. The revised Gash model produced a fairly good agreement between observed and estimated rainfall partitioning. The model underestimated interception loss by only 6.6%, while throughfall and stemflow were also slightly misestimated. Hence the interception loss predictions from the model were robust and reliable for this mixed evergreen and deciduous broadleaved forest. As quantified by the model, the vast majority of interception loss occurred as evaporation from the canopy under saturated conditions: 54.9% evaporated during rainfall events, and 38.3% after rainfall ceased. The sensitivity analysis indicated that predictions from the revised Gash model were most affected by changes in canopy storage capacity (S), followed by the mean evaporation rate ((E) over bar) during rainfall events, the mean rainfall rate ((R) over bar) and last canopy cover (c). Model predictions were least sensitive to trunk parameters (St and pt). Copyright (C) 2016 John Wiley & Sons, Ltd.
关键词	interception loss revised Gash model forest hydrology subtropical forest canopy structure meteorological parameters
学科领域	Ecology ; Environmental Sciences ; Water Resources
DOI	10.1002/eco.1749
收录类别	SCI
语种	英语
WOS关键词	CANOPY WATER FLUXES ; RAINFALL INTERCEPTION ; THROUGHFALL ; VARIABILITY ; STAND ; PINE ; STEMFLOW ; PRECIPITATION ; VEGETATION ; AUSTRALIA
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000390023000013
出版者	WILEY-BLACKWELL
文献子类	Article
出版地	HOBOKEN
EISSN	1936-0592
资助机构	Special Fund for Public Service - Ministry of Environmental Protection of the People's Republic of China [201309039] ; Terrestrial Plant Key Station of Ecological and Environmental Monitoring Network of the Three Gorges Project [JJ2015-027]
作者邮箱	xie@ibcas.ac.cn
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25101
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Su, Lei,Zhao, Changming,Xu, Wenting,et al. Modelling interception loss using the revised Gash model: a case study in a mixed evergreen and deciduous broadleaved forest in China[J]. ECOHYDROLOGY,2016,9(8):1580-1589.
APA	Su, Lei,Zhao, Changming,Xu, Wenting,&Xie, Zongqiang.(2016).Modelling interception loss using the revised Gash model: a case study in a mixed evergreen and deciduous broadleaved forest in China.ECOHYDROLOGY,9(8),1580-1589.
MLA	Su, Lei,et al."Modelling interception loss using the revised Gash model: a case study in a mixed evergreen and deciduous broadleaved forest in China".ECOHYDROLOGY 9.8(2016):1580-1589.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Modelling_intercepti（853KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文