Estimation of spatial mean soil water storage using temporal stability at the hillslope scale in black locust (Robinia pseudoacacia) stands

doi:10.1016/j.catena.2017.03.023

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Estimation of spatial mean soil water storage using temporal stability at the hillslope scale in black locust (Robinia pseudoacacia) stands
	Duan, Liangxia 1,2; Huang, Mingbin 2; Li, Zhenwei 3; Zhang, Zhongdian 1,2; Zhang, Luodan 1,2; Huang, MB (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
文章类型	Article
	2017
发表期刊	CATENA
ISSN	0341-8162
通讯作者邮箱	hmbd@nwsuaf.edu.cn
卷号	156 页码:51-61
摘要	Black locust (Robinia pseudoacacia) has been extensively planted on the Loess Plateau for soil and water conservation, but afforestation with this non-native tree has produced some negative effects such as soil desiccation. Knowledge of the soil water storage (SWS) within soil profiles in black locust stands is thus critical for optimization of forest management for sustainable production. The objectives of this study were to evaluate the temporal stability of SWS to identify the most time-stable locations (MTSLs) for reliably estimating the mean SWS and to further investigate the factors influencing its temporal stability. The SWS values of various soil layers (0-1, 1-2, and 2-3 m) were measured from May 2014 to October 2015 at 70 locations along two 187-m long transects on a hillslope covered with black locust in the Loess Plateau, China. A total of 18 SWS datasets were collected over the period of measurement. Results indicated that the temporal variation of spatial mean SWS decreased and the spatial variation of SWS increased with increasing soil depth. A strong temporal persistence in all soil layers was demonstrated by high Spearman's rank correlation coefficients (P < 0.01), with the temporal stability in deep soil layers relatively more stable than in shallow layer. Among four methods (MRD, mean relative difference; SDRD, standard deviation of relative difference; ITS, index of temporal stability; and MABE, mean absolute bias error) used to identify the MTSLs for the estimation of the mean SWS, the ITS provided the best results. The MTSLs identified in diverse layers of the first transect were then used to successfully predict the mean SWS along the second transect (R-2 > 0.91). Elevation, soil saturated hydraulic conductivity, leaf area index, and fine root area density were the major factors influencing the temporal stability of SWS. The results of this study were useful for estimating mean SWS and could improve soil water management and hydrological applications in sloping black locust forested areas of the Loess Plateau.
关键词	Index Of Temporal Stability Most Time-stable Locations (Mtsls) Hillslope Transect
学科领域	Geology ; Agriculture ; Water Resources
DOI	10.1016/j.catena.2017.03.023
URL	查看原文
收录类别	SCI
出版地	AMSTERDAM
语种	英语
WOS记录号	WOS:000404305700006
出版者	ELSEVIER SCIENCE BV
项目资助者	National Natural Science Foundations of China [41571130082, 41390463] ; National Natural Science Foundations of China [41571130082, 41390463]
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7937
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Huang, MB (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 3.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Duan, Liangxia,Huang, Mingbin,Li, Zhenwei,et al. Estimation of spatial mean soil water storage using temporal stability at the hillslope scale in black locust (Robinia pseudoacacia) stands[J]. CATENA,2017,156:51-61.
APA	Duan, Liangxia,Huang, Mingbin,Li, Zhenwei,Zhang, Zhongdian,Zhang, Luodan,&Huang, MB .(2017).Estimation of spatial mean soil water storage using temporal stability at the hillslope scale in black locust (Robinia pseudoacacia) stands.CATENA,156,51-61.
MLA	Duan, Liangxia,et al."Estimation of spatial mean soil water storage using temporal stability at the hillslope scale in black locust (Robinia pseudoacacia) stands".CATENA 156(2017):51-61.