干旱区生态环境知识资源中心(Arid): Influencing Factors of the Spatial-Temporal Variation of Layered Soils and Sediments Moistures and Infiltration Characteristics under Irrigation in a Desert Oasis by Deterministic Spatial Interpolation Methods

Arid

DOI	10.3390/w11071483
	Influencing Factors of the Spatial-Temporal Variation of Layered Soils and Sediments Moistures and Infiltration Characteristics under Irrigation in a Desert Oasis by Deterministic Spatial Interpolation Methods
	Li, Xin1 ; Lu, Yudong 1; Zhang, Xiaozhou 1; Zhang, Rong 2; Fan, Wen 3; Pan, Wangsheng 4
通讯作者	Lu, Yudong
来源期刊	WATER
EISSN	2073-4441
出版年	2019
卷号	11 期号:7
英文摘要	Soil moisture is the main limiting factor for crop growth and the sustainable development of oases in arid desert areas. Therefore, the temporal and spatial variation and infiltration laws of oasis soil moisture should be studied. The objective of this study is to reveal the influencing factors of the spatial-temporal variation of layered soil and sediment moisture and infiltration characteristics under irrigation in desert oases. Hydraulic conductivities were measured using the double-ring infiltrometer, while the regional and site soil moistures were measured and calibrated using weighted method and neutron moisture meter. Deterministic spatial interpolation methods, including multiquadric radial basis function, inverse distance weighted, and local polynomial regression isogram, were adopted to map the regional distribution of hydraulic conductivities, spatial soil moistures, and spatial-temporal isogram of the point site soil moistures in Yaoba Oasis, respectively. Results showed that the leading influencing factors of the (1) regional spatial soil moisture were soil and sediment permeability, stream link direction, microclimate, and dewfalls; (2) spatial layered soil and sediment moistures were microclimate and dew condensation; and (3) spatial-temporal variation at the point site profiles were soil texture, water requirement, and preferential flow. Under irrigation, soil moisture increased significantly, in which the maximum increase was 10.8 times the original state, while the recharging depth substantially increased up to 580 cm with the preferential flow. The spatial-temporal variation of the soil moisture under irrigation indicated that the best irrigation frequency should be 15 days per time. Moreover, the infiltration process can be divided into the preferential flow, piston flow, and balanced infiltration stages.
英文关键词	soil moisture spatial-temporal variation irrigation preferential flow oasis
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000480632300168
WOS关键词	NORTHERN SHAANXI PROVINCE ; LOESS HILLY REGION ; SPATIOTEMPORAL VARIABILITY ; WATER-CONTENT ; LAND-USE ; STABILITY ; GROUNDWATER ; DEW ; AREA ; RESOURCE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219217
作者单位	1.Changan Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian 710016, Shaanxi, Peoples R China; 2.River Engn & Technol Res Ctr Shaanxi Prov, Xian 710016, Shaanxi, Peoples R China; 3.Changan Univ, Sch Geol Engn & Surveying, Xian 710016, Shaanxi, Peoples R China; 4.Qiannan Normal Univ Nationalities, Sch Tourism & Resources Environm, Duyun 558000, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,Lu, Yudong,Zhang, Xiaozhou,et al. Influencing Factors of the Spatial-Temporal Variation of Layered Soils and Sediments Moistures and Infiltration Characteristics under Irrigation in a Desert Oasis by Deterministic Spatial Interpolation Methods[J],2019,11(7).
APA	Li, Xin,Lu, Yudong,Zhang, Xiaozhou,Zhang, Rong,Fan, Wen,&Pan, Wangsheng.(2019).Influencing Factors of the Spatial-Temporal Variation of Layered Soils and Sediments Moistures and Infiltration Characteristics under Irrigation in a Desert Oasis by Deterministic Spatial Interpolation Methods.WATER,11(7).
MLA	Li, Xin,et al."Influencing Factors of the Spatial-Temporal Variation of Layered Soils and Sediments Moistures and Infiltration Characteristics under Irrigation in a Desert Oasis by Deterministic Spatial Interpolation Methods".WATER 11.7(2019).