干旱区生态环境知识资源中心(Arid): Comparison of interpolation methods for mapping layered soil particle-size fractions and texture in an arid oasis

Arid

DOI	10.1016/j.catena.2020.104514
	Comparison of interpolation methods for mapping layered soil particle-size fractions and texture in an arid oasis
	Li, Jiang; Wan, Heyang; Shang, Songhao
通讯作者	Shang, SH
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	190
英文摘要	Soil particle-size (clay, silt, and sand) fractions and texture maps are key inputs for soil physical, chemical, hydrological, agricultural, and ecological models. In the current study, ordinary kriging (OK), simple kriging (SK), and universal kriging (UK) combined with additive, centered, isometric and symmetry log-ratio (ALR, CLR, ILR and SLR) transformations and compositional kriging (CK) are used to map the layered soil texture and to interpolate the soil particle-size fractions based on soil surveys in the middle reaches of Heihe river basin in Northwest China. Results depicted that silt loam is the dominant soil texture in soil profiles of 0-140 cm, accounting for almost 50% in the study area. Layers 3-5 (soil depth of 40-100 cm) show the strongest spatial dependency of soil particle-size fractions as compared to other layers. The results revealed that soil particle-size fractions and soil texture interpolation are dependent on the proper selection of interpolation methods. SLR transformation are better than other log-ratio transformations when interpolating each soil particle-size fraction using different kriging methods. However, for interpolating soil texture types, ALR transformation is the best for OK and SK, and CLR for UK. UK-SLR is recommended to interpolate soil particle-size fractions for all soil layers, and UK-CLR to interpolate the layered soil texture of the study area. More than eighty soil samples should be taken to get a higher soil particle-size fractions/soil texture interpolation precision.
英文关键词	Soil particle-size fractions Soil texture Spatial interpolation Kriging method Compositional kriging Log-ratio transformation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000525324600005
WOS关键词	HEIHE RIVER-BASIN ; SPATIAL PREDICTION ; PEDOTRANSFER FUNCTIONS ; HYDROLOGICAL PROCESSES ; FOREST ; UNCERTAINTY ; VARIABILITY ; REGRESSION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324329
作者单位	[Li, Jiang; Wan, Heyang; Shang, Songhao] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiang,Wan, Heyang,Shang, Songhao. Comparison of interpolation methods for mapping layered soil particle-size fractions and texture in an arid oasis[J]. 清华大学,2020,190.
APA	Li, Jiang,Wan, Heyang,&Shang, Songhao.(2020).Comparison of interpolation methods for mapping layered soil particle-size fractions and texture in an arid oasis.CATENA,190.
MLA	Li, Jiang,et al."Comparison of interpolation methods for mapping layered soil particle-size fractions and texture in an arid oasis".CATENA 190(2020).