Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta

doi:10.1016/S1002-0160(21)60018-8

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Impacts of land use and salinization on soil inorganic and organic carbon in the middle-lower Yellow River Delta
	Guo, Yang 1,4; Wang, Xiujun 1; Li, Xianglan 1; Xu, Minggang 2; Li, Yuan 3; Zheng, Haonan 1; Luo, Yongming 3; Smith, Pete 4
刊名	PEDOSPHERE
	2021-10-01
卷号	31 期号:6 页码:839-848
关键词	C densities C stocks land use type salt-affected soil soil salinization
ISSN号	1002-0160
DOI	10.1016/S1002-0160(21)60018-8
通讯作者	Wang, Xiujun(xwang@bnu.edu.cn) ; Li, Xianglan(xlli@bnu.edu.cn)
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, respectively) than the paddy soils (3.28 and 14.09 kg Cm-2, respectively) in the 0-100 cm layer. Compared with paddy soils, reed soils contained significantly higher SOC (4.68 kg Cm-2) and similar SIC (15.02 kg Cm-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.
资助项目	National Natural Science Foundation of China[41877028] ; National Natural Science Foundation of China[41205104] ; Newton Fund via Biotechnology and Biological Sciences Research Council (BBSRC)[BB/N013484/1]
WOS关键词	GLOBAL CLIMATE-CHANGE ; LOESS PLATEAU ; VERTICAL-DISTRIBUTION ; SEQUESTRATION ; CHINA ; STOCKS ; FERTILIZATION ; DYNAMICS ; CROPLAND ; MATTER
WOS研究方向	Agriculture
语种	英语
WOS记录号	WOS:000671197100001
资助机构	National Natural Science Foundation of China ; Newton Fund via Biotechnology and Biological Sciences Research Council (BBSRC)
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/29473]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Wang, Xiujun; Li, Xianglan
作者单位	1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China 4.Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen AB24 3UU, Scotland
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]. PEDOSPHERE,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.