干旱区生态环境知识资源中心(Arid): Soil Moisture Estimation and Its Influencing Factors Based on Temporal Stability on a Semiarid Sloped Forestland

Arid

DOI	10.3389/feart.2021.629826
	Soil Moisture Estimation and Its Influencing Factors Based on Temporal Stability on a Semiarid Sloped Forestland
	Xu, Mingzhu; Xu, Guoce; Cheng, Yuting; Min, Zhiqiang; Li, Peng; Zhao, Binhua; Shi, Peng; Xiao, Lie
通讯作者	Xu, GC (corresponding author), Xian Univ Technol, Key Lab Natl Forestry Adm Ecol Hydrol & Disaster, Xian, Peoples R China. ; Cheng, YT (corresponding author), Yanan Univ, Coll Life Sci, Yanan, Peoples R China.
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2021
卷号	9
英文摘要	Soil water content (SWC) plays a crucial role in the hydrological cycle and ecological restoration in arid and semi-arid areas. Studying the temporal stability of SWC spatial distribution is a requirement for the dynamic monitoring of SWC and the optimization of water resource management. The SWC in a Pinus tabulaeformis Carr. forest on the slope of the Loess Plateau of China were analyzed in five soil layers (0-100 cm with an interval of 20 cm) in the rainy and dry seasons from July 2014 to November 2017. The mean SWC was estimated and the main factors affecting the temporal stability of the SWC were further analyzed. Results showed that the SWC had strong temporal stability during the two seasons for several consecutive years. The temporal stability of SWC and the number of representative locations varied with season and depth. The elevation, soil total phosphorus (STP), clay, silt, or sand content of the representative locations approached the corresponding mean value of the study area. A single representative location accurately represented the mean SWC for the five depths in the rainy and dry seasons (RMSE R ( 2 ) < 0.94; dry season: 0.63 < R ( 2 ) < 0.83; p < 0.01). The mean relative difference (MRD) and the relative difference standard deviation (SDRD) changed with the seasons and were significantly correlated with elevation, root density, and sand and silt content in two seasons (p < 0.05). Elevation, root density, and sand content were the main factors influencing the change of SWC temporal stability in different seasons. The results provide scientific guidance to monitor SWC by using a small number of locations and enrich our understanding of the factors affecting the temporal stability of SWC in the rainy and dry seasons of the Loess Plateau of China.
英文关键词	soil water content temporal stability influencing factors representative location season spatial distribution pattern soil particle size
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000632217000001
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350275
作者单位	[Xu, Mingzhu; Xu, Guoce; Li, Peng; Zhao, Binhua; Shi, Peng; Xiao, Lie] Xian Univ Technol, Key Lab Natl Forestry Adm Ecol Hydrol & Disaster, Xian, Peoples R China; [Cheng, Yuting] Yanan Univ, Coll Life Sci, Yanan, Peoples R China; [Min, Zhiqiang] Natl Forestry & Grassland Adm, Northwest Surveying Planning & Designing Inst, Xian, Peoples R China
推荐引用方式 GB/T 7714	Xu, Mingzhu,Xu, Guoce,Cheng, Yuting,et al. Soil Moisture Estimation and Its Influencing Factors Based on Temporal Stability on a Semiarid Sloped Forestland[J],2021,9.
APA	Xu, Mingzhu.,Xu, Guoce.,Cheng, Yuting.,Min, Zhiqiang.,Li, Peng.,...&Xiao, Lie.(2021).Soil Moisture Estimation and Its Influencing Factors Based on Temporal Stability on a Semiarid Sloped Forestland.FRONTIERS IN EARTH SCIENCE,9.
MLA	Xu, Mingzhu,et al."Soil Moisture Estimation and Its Influencing Factors Based on Temporal Stability on a Semiarid Sloped Forestland".FRONTIERS IN EARTH SCIENCE 9(2021).