Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China

doi:10.1016/j.jhydrol.2020.125234

	Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China
	Ma, Changkun 1,3; Luo, Yi 2,3; Shao, Mingan 1,2,3
刊名	JOURNAL OF HYDROLOGY
	2020-11-01
卷号	590 页码:16
关键词	Rainfall interception Revised Gash Analytical Model WiMo model Thinning Loess plateau
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125234
通讯作者	Luo, Yi(luoyi@igsnrr.ac.cn) ; Shao, Mingan(mashao@ms.iswc.ac.cn)
英文摘要	Canopy interception loss is a key component of forest hydrological cycle that determine the amount of net rainfall reaching forest floor together with drought/climate stressors affecting dryland forest plantations. A good understanding of the relationship between canopy interception loss and forest management such as thinning is important for improved watershed management and ecological services. In this study, we measured event-based rainfall partitioning for a thinned (TH, with 38% basal area removed) and a control (CT) Robinia pseudoacacia forest plantation during leafed and leafless seasons in 2015 in the semiarid Loess Plateau region in China. Interception loss from both forest plots were simulated using the Revised Gash Analytical Model (RGAM) and the WiMo model. The results showed that observed annual throughfall, stemflow and interception loss were respectively 80.8%, 1.7% and 17.5% of the gross rainfall under CT. The corresponding values under TH were 87.9%, 0.8% and 11.3%, respectively. The RGAM and WiMo models were well calibrated and validated using filed data collected in leafed and leafless seasons. The analyses suggested that models accurately predicated interception loss under both CT and TH conditions and captured seasonal variations in canopy and meteorological parameters. The RGAM model was most sensitive to the ratio of mean evaporation rate to mean rainfall intensity, and canopy storage capacity in leafed season, and to the ratio of mean evaporation rate to mean rainfall intensity in leafless season. Moreover, 37.2% and 42.1% of the interception in leafed season evaporated from the canopy respectively during rainfall event and after rainfall. The corresponding values for leafless season were respectively 49.3% and 22.4%. Overall, the performance of the optimized RGAM and WiMo models were satisfactory with respect to modeling error ( - 6.9 - - 2.9%) and Nash-Sutcliffe model efficiency (0.80-0.94), although that of the optimized RGAM model was slightly superior to WiMo model. The models would facilitate the implementation of water-oriented management in semiarid forest plantations through a more accurate simulation of the impact of thinning on interception loss.
资助项目	National Key Research and Development Program of China[2016YFC0501603]
WOS关键词	WATER-YIELD REDUCTION ; RAINFALL INTERCEPTION ; FOREST MANAGEMENT ; LIUPAN MOUNTAINS ; LOESS PLATEAU ; PINUS-NIGRA ; SOIL-WATER ; GASH ; STAND ; TREE
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000599754500035
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137487]
专题	中国科学院地理科学与资源研究所
通讯作者	Luo, Yi; Shao, Mingan
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Ma, Changkun,Luo, Yi,Shao, Mingan. Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China[J]. JOURNAL OF HYDROLOGY,2020,590:16.
APA	Ma, Changkun,Luo, Yi,&Shao, Mingan.(2020).Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China.JOURNAL OF HYDROLOGY,590,16.
MLA	Ma, Changkun,et al."Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China".JOURNAL OF HYDROLOGY 590(2020):16.