Variations in soil aggregate stability due to land use changes from agricultural land on the Loess Plateau, China

doi:10.1016/j.catena.2021.105181

	Variations in soil aggregate stability due to land use changes from agricultural land on the Loess Plateau, China
	Zhu, Guang-yu 1; Shangguan, Zhou-ping 2,3; Deng, Lei 2,3
刊名	CATENA
	2021-05-01
卷号	200 页码:12
关键词	Inorganic nitrogen Soil erosion Soil particles Soil structure Vegetation types
ISSN号	0341-8162
DOI	10.1016/j.catena.2021.105181
通讯作者	Zhu, Guang-yu(zhu.guangyu@cqu.edu.cn) ; Deng, Lei(leideng@ms.iswc.ac.cn)
英文摘要	Soil aggregate stability is a feasible and effective factor to understand the complex interactions between physicochemical properties and soil structure. To reveal the distributions of soil aggregate stability and its influential factors following land use change from apple orchards abandonment and development in the Nangou watershed of the Loess Plateau, China, this study selected five ages of apple orchards and their planting years were 1 year, 3 years, 6 years, 8 years and 10 years, one 15-year grassland developed from an apple orchard, one 15-year grassland developed from farmland, one natural grassland and one 15-year locust. Results showed that restored vegetation had better soil aggregate stability, soil organic carbon (SOC), and nitrogen (N) than apple orchards, and the composition of soil particles with the best aggregate stability was clay 6%, silt 8%, and sand 86%. At a 0-10 cm soil depth, soil aggregate stability had a significant positive correlation with SOC and soil total nitrogen (STN), and a negative correlation with NO3- and NH4+. In addition, vegetation diversity and coverage only affected the soil aggregate stability of the 0-10 cm soil depth; however, soil pH, bulk density, and soil aggregate-associated inorganic nitrogen were the main influential factors that drove the soil aggregate stability of the 0-30 cm soil depth. Further research discovered that macro-aggregate associated NO3- and micro-aggregate associated NH4+ may be the key factors affecting the soil aggregate stability. Therefore, it is essential to further explore the effect of soil aggregate-associated inorganic nitrogen on soil aggregate stability.
资助项目	National Natural Science Foundation of China[41877538] ; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources[A314021402-2004] ; National Key Research and Development Program of China[2016YFC0501605] ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative talents of 'Youth Science and Technology Star' in Shaanxi Province of China[2018KJXX-088]
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000620777400042
资助机构	National Natural Science Foundation of China ; Open Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources ; National Key Research and Development Program of China ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative talents of 'Youth Science and Technology Star' in Shaanxi Province of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160413]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhu, Guang-yu; Deng, Lei
作者单位	1.Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Guang-yu,Shangguan, Zhou-ping,Deng, Lei. Variations in soil aggregate stability due to land use changes from agricultural land on the Loess Plateau, China[J]. CATENA,2021,200:12.
APA	Zhu, Guang-yu,Shangguan, Zhou-ping,&Deng, Lei.(2021).Variations in soil aggregate stability due to land use changes from agricultural land on the Loess Plateau, China.CATENA,200,12.
MLA	Zhu, Guang-yu,et al."Variations in soil aggregate stability due to land use changes from agricultural land on the Loess Plateau, China".CATENA 200(2021):12.