The interacting roles and relative importance of climate, topography, soil properties and mineralogical composition on soil potassium variations at a national scale in China

• Published in: Catena (Giessen) Vol. 196; p. 104875
• Main Authors: Li, Ting, Liang, Junjie, Chen, Xiaoqin, Wang, Huoyan, Zhang, Shirong, Pu, Yulin, Xu, Xiaoxun, Li, Hao, Xu, Jingwen, Wu, Xiaobo, Liu, Xiaojing
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2021
• Subjects: agricultural soils; agroecosystems; catenas; China; clay; Clay mineralogical composition; Climate; Controlling factor; crops; exchangeable potassium; potassium; Soil potassium; Soil properties; structural equation modeling; temperature; terrestrial ecosystems; Topography; China; Soil potassium; Climate; Soil properties; Clay mineralogical composition; Topography; Controlling factor

•SEM analyses explained 12.0–46% of the variations in soil K.•Climate acted as the most important factor controlling the variations in soil K.•Topographical conditions were the secondary controls of soil K variations.•Key soil properties and clay mineral showed less effect on soil K variations.•Clim...