Aggregate binding agents improve soil aggregate stability in Robinia pseudoacacia forests along a climatic gradient on the Loess Plateau, China

doi:10.1007/s40333-021-0002-8

	Aggregate binding agents improve soil aggregate stability in Robinia pseudoacacia forests along a climatic gradient on the Loess Plateau, China
	Jing, Hang 1; Meng, Min 1; Wang, Guoliang 1,2; Liu, Guobin 1,2
刊名	JOURNAL OF ARID LAND
	2021-02-01
卷号	13 期号:2 页码:165-174
关键词	binding agents glomalin organic carbon soil property soil aggregate stability
ISSN号	1674-6767
DOI	10.1007/s40333-021-0002-8
通讯作者	Liu, Guobin(gbliu@ms.iswc.ac.cn)
英文摘要	The distribution of binding agents (i.e., soil organic carbon (SOC) and glomalin-related soil protein (GRSP)) in soil aggregates was influenced by many factors, such as plant characteristics and soil properties. However, how these factors affect binding agents and soil aggregate stability along a climatic gradient remained unclear. We selected the Robinia pseudoacacia L. forests from semi-arid to semi-humid of the Loess Plateau, China to analyze the plant biomass, soil physical-chemical properties, SOC and GRSP distribution in different sized soil aggregates. We found that from semi-arid to semi-humid forests: (1) the proportion of macro-aggregates (>0.250 mm) significantly increased (P<0.05), whereas those of micro-aggregates (0.250-0.053 mm) and fine materials (<0.053 mm) decreased and soil aggregate stability was increased; (2) the contents of SOC and GRSP in macro-aggregates and micro-aggregates significantly increased, and those in fine materials decreased; (3) the contribution of SOC to soil aggregate stability was greater than those of total GRSP and easily extractable GRSP; (4) soil properties had greater influence on binding agents than plant biomass; and (5) soil aggregate stability was enhanced by increasing the contents of SOC and GRSP in macro-aggregates and soil property was the important part during this process. Climate change from semi-arid to semi-humid forests is important factor for soil structure formation because of its positive effect on soil aggregates.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000625929400005
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162114]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Guobin
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.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	Jing, Hang,Meng, Min,Wang, Guoliang,et al. Aggregate binding agents improve soil aggregate stability in Robinia pseudoacacia forests along a climatic gradient on the Loess Plateau, China[J]. JOURNAL OF ARID LAND,2021,13(2):165-174.
APA	Jing, Hang,Meng, Min,Wang, Guoliang,&Liu, Guobin.(2021).Aggregate binding agents improve soil aggregate stability in Robinia pseudoacacia forests along a climatic gradient on the Loess Plateau, China.JOURNAL OF ARID LAND,13(2),165-174.
MLA	Jing, Hang,et al."Aggregate binding agents improve soil aggregate stability in Robinia pseudoacacia forests along a climatic gradient on the Loess Plateau, China".JOURNAL OF ARID LAND 13.2(2021):165-174.