干旱区生态环境知识资源中心(Arid): Characterizing Soil Profile Salinization in Cotton Fields Using Landsat 8 Time-Series Data in Southern Xinjiang, China

Arid

DOI	10.3390/s23157003
	Characterizing Soil Profile Salinization in Cotton Fields Using Landsat 8 Time-Series Data in Southern Xinjiang, China
	Wang, Jiaqiang; Hu, Bifeng; Liu, Weiyang; Luo, Defang; Peng, Jie
通讯作者	Liu, WY
来源期刊	SENSORS
EISSN	1424-8220
出版年	2023
卷号	23 期号:15
英文摘要	Soil salinization is a major obstacle to land productivity, crop yield and crop quality in arid areas and directly affects food security. Soil profile salt data are key for accurately determining irrigation volumes. To explore the potential for using Landsat 8 time-series data to monitor soil salinization, 172 Landsat 8 images from 2013 to 2019 were obtained from the Alar Reclamation Area of Xinjiang, northwest China. The multiyear extreme dataset was synthesized from the annual maximum or minimum values of 16 vegetation indices, which were combined with the soil conductivity of 540 samples from soil profiles at 0 similar to 0.375 m, 0 similar to 0.75 m and 0 similar to 1.00 m depths in 30 cotton fields with varying degrees of salinization as investigated by EM38-MK2. Three remote sensing monitoring models for soil conductivity at different depths were constructed using the Cubist method, and digital mapping was carried out. The results showed that the Cubist model of soil profile electrical conductivity from 0 to 0.375 m, 0 to 0.75 m and 0 to 1.00 m showed high prediction accuracy, and the determination coefficients of the prediction set were 0.80, 0.74 and 0.72, respectively. Therefore, it is feasible to use a multiyear extreme value for the vegetation index combined with a Cubist modeling method to monitor soil profile salinization at a regional scale.
英文关键词	soil salinization electromagnetic induction satellite remote sensing cotton fields soil profiles
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001045762800001
WOS关键词	LEAF-AREA INDEX ; SPECTRAL INDEXES ; SALINITY ; VEGETATION ; FOREST ; BIOMASS ; REGION
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398638
推荐引用方式 GB/T 7714	Wang, Jiaqiang,Hu, Bifeng,Liu, Weiyang,et al. Characterizing Soil Profile Salinization in Cotton Fields Using Landsat 8 Time-Series Data in Southern Xinjiang, China[J],2023,23(15).
APA	Wang, Jiaqiang,Hu, Bifeng,Liu, Weiyang,Luo, Defang,&Peng, Jie.(2023).Characterizing Soil Profile Salinization in Cotton Fields Using Landsat 8 Time-Series Data in Southern Xinjiang, China.SENSORS,23(15).
MLA	Wang, Jiaqiang,et al."Characterizing Soil Profile Salinization in Cotton Fields Using Landsat 8 Time-Series Data in Southern Xinjiang, China".SENSORS 23.15(2023).