干旱区生态环境知识资源中心(Arid): Field-Scale Characterization of Spatio-Temporal Variability of Soil Salinity in Three Dimensions

Arid

DOI	10.3390/rs12244043
	Field-Scale Characterization of Spatio-Temporal Variability of Soil Salinity in Three Dimensions
	Li, Hongyi; Liu, Xinlu; Hu, Bifeng; Biswas, Asim; Jiang, Qingsong; Liu, Weiyang; Wang, Nan; Peng, Jie
通讯作者	Peng, J (corresponding author), Tarim Univ, Coll Plant Sci, Alar 843300, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:24
英文摘要	Information on spatial, temporal, and depth variability of soil salinity at field and landscape scales is important for a variety of agronomic and environment concerns including irrigation in arid and semi-arid areas. However, challenges remain in characterizing and monitoring soil secondary salinity as it can largely be impacted by managements including irrigation and mulching in addition to natural factors. The objective of this study is to evaluate apparent electrical conductivity (ECa)-directed soil sampling as a basis for monitoring management-induced spatio-temporal change in soil salinity in three dimensions. A field experiment was conducted on an 18-ha saline-sodic field from Alar's Agricultural Science and Technology Park, China between March, and November 2018. Soil ECa was measured using an electromagnetic induction (EMI) sensor for four times over the growing season and soil core samples were collected from 18 locations (each time) selected using EMI survey data as a-priori information. A multi-variate regression-based predictive relationship between ECa and laboratory-measured electrical conductivity (ECe) was used to predict EC with confidence (R-2 between 0.82 and 0.99). A three-dimensional inverse distance weighing (3D-IDW) interpolation clearly showed a strong variability in space and time and with depths within the study field which were mainly attributed to the human management factors including irrigation, mulching, and uncovering of soils and natural factors including air temperature, evaporation, and groundwater level. This study lays a foundation of characterizing secondary salinity at a field scale for precision and sustainable management of agricultural lands in arid and semi-arid areas.
英文关键词	soil profile soil salinization spatio-temporal variation electromagnetic induction three-dimension visualization
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000603215800001
WOS关键词	ELECTRICAL-CONDUCTIVITY ; ELECTROMAGNETIC INDUCTION ; SPATIAL VARIABILITY ; RIVER DELTA ; INTERPOLATION ; AGRICULTURE ; CALIBRATION ; PREDICTION ; MANAGEMENT ; PROFILES
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349158
作者单位	[Li, Hongyi; Liu, Xinlu] Jiangxi Univ Finance & Econ, Dept Land Resource Management, Sch Tourism & Urban Management, Nanchang 330013, Jiangxi, Peoples R China; [Hu, Bifeng; Jiang, Qingsong; Wang, Nan] Zhejiang Univ, Coll Environm & Resources, Hangzhou 310058, Peoples R China; [Hu, Bifeng] INRAE, Unite Rech Sci Sol, F-45075 Orleans, France; [Hu, Bifeng] Orleans Univ, Sci Terre & Univers, F-45067 Orleans, France; [Biswas, Asim] Univ Guelph, Sch Environm Sci, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada; [Liu, Weiyang; Peng, Jie] Tarim Univ, Coll Plant Sci, Alar 843300, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongyi,Liu, Xinlu,Hu, Bifeng,et al. Field-Scale Characterization of Spatio-Temporal Variability of Soil Salinity in Three Dimensions[J],2020,12(24).
APA	Li, Hongyi.,Liu, Xinlu.,Hu, Bifeng.,Biswas, Asim.,Jiang, Qingsong.,...&Peng, Jie.(2020).Field-Scale Characterization of Spatio-Temporal Variability of Soil Salinity in Three Dimensions.REMOTE SENSING,12(24).
MLA	Li, Hongyi,et al."Field-Scale Characterization of Spatio-Temporal Variability of Soil Salinity in Three Dimensions".REMOTE SENSING 12.24(2020).