干旱区生态环境知识资源中心(Arid): Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta

Arid

	Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta
	Guo Yang; Wang Xiujun; Li Xianglan; Xu Minggang; Li Yuan; Zheng Haonan; Luo Yongming; Smith Pete
来源期刊	Pedosphere
ISSN	1002-0160
出版年	2021
卷号	31 期号:6 页码:839-848
英文摘要	Soil inorganic carbon (SIC) is an important reservoir of carbon (C) in arid, semi-arid, and semi-humid regions. However, knowledge is incomplete on the dynamics of SIC and its relationship with soil organic C (SOC) under different land use types in the semi-humid region, particularly in coastal zones impacted by soil salinization. We collected 170 soil samples from 34 profiles across various land use types (maize-wheat, cotton, paddy, and reed) in the middle-lower Yellow River Delta (YRD), China. We measured soil pH, electrical conductivity (EC), water-soluble salts, and SOC and SIC contents. Our results showed significant differences in both SOC and SIC among land use types. The dry cropland (maize-wheat and cotton) soils had significantly higher SOC and SIC densities (4.71 and 15.46 kg C m~(-2), respectively) than the paddy soils (3.28 and 14.09 kg C m~(-2), respectively) in the 0-100 cm layer. Compared with paddy soils, reed soils contained significantly higher SOC (4.68 kg C m~(-2)) and similar SIC (15.02 kg C m~(-2)) densities. There was a significant positive correlation between SOC and SIC densities over a 0-100 cm soil depth in dry cropland soils, but a negative relationship in the paddy soils. On average, SOC and SIC densities under maize-wheat cropping were 15% and 4% lower, respectively, in the salt-affected soils in the middle-lower YRD than the upper YRD. This study indicated that land use types had great influences on both SOC and SIC and their relationship, and salinization had adverse effect on soil C storage in the YRD.
英文关键词	C densities C stocks land use type salt-affected soil soil salinization
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7054879
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377471
作者单位	Guo Yang, College of Global Change and Earth System Science, Beijing Normal University;;Institute of Biological and Environmental Sciences, University of Aberdeen, ;;, ;;Aberdeen, Beijing;;UK 100875;;AB243UU.; Wang Xiujun, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China.; Li Xianglan, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China.; Zheng Haonan, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China.; Xu Minggang, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agriculture Sciences, Beijing 100081, China.; Li Yuan, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Chinese Academy of Sciences, Yantai, Shandong 264003, China.; Luo Yongming, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Key Laboratory ...
推荐引用方式 GB/T 7714	Guo Yang,Wang Xiujun,Li Xianglan,et al. Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta[J],2021,31(6):839-848.
APA	Guo Yang.,Wang Xiujun.,Li Xianglan.,Xu Minggang.,Li Yuan.,...&Smith Pete.(2021).Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta.Pedosphere,31(6),839-848.
MLA	Guo Yang,et al."Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta".Pedosphere 31.6(2021):839-848.