Effects of land use and cultivation time on soil organic and inorganic carbon storage in deep soils

doi:10.1007/s11442-020-1762-3

	Effects of land use and cultivation time on soil organic and inorganic carbon storage in deep soils
	Yu, Xia 2,3,4; Zhou, Weijian 2,3,5,6; Wang, Yunqiang 1,2,5,6; Cheng, Peng 1,2,3,7; Hou, Yaoyao 2,3; Xiong, Xiaohu 2,3; Du, Hua 2,3; Yang, Ling 2,3,4; Wang, Ya 2,3,4
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2020-06-01
卷号	30 期号:6 页码:921-934
关键词	cultivation time deep soil Gutun watershed land use inorganic carbon organic carbon
ISSN号	1009-637X
DOI	10.1007/s11442-020-1762-3
通讯作者	Zhou, Weijian(weijian@loess.llqg.ac.cn)
英文摘要	The vertical distribution and exchange mechanisms of soil organic and inorganic carbon (SOC, SIC) play an important role in assessing carbon (C) cycling and budgets. However, the impact of land use through time for deep soil C (below 100 cm) is not well known. To investigate deep C storage under different land uses and evaluate how it changes with time, we collected soil samples to a depth of 500 cm in a soil profile in the Gutun watershed on the Chinese Loess Plateau (CLP); and determined SOC, SIC, and bulk density. The magnitude of SOC stocks in the 0-500 cm depth range fell into the following ranking: shrubland (17.2 kg m(-2)) > grassland (16.3 kg m(-2)) > forestland (15.2 kg m(-2)) > cropland (14.1 kg m(-2)) > gully land (6.4 kg m(-2)). The ranking for SIC stocks were: grassland (104.1 kg m(-2)) > forestland (96.2 kg m(-2)) > shrubland (90.6 kg m(-2)) > cropland (82.4 kg m(-2)) > gully land (50.3 kg m(-2)). Respective SOC and SIC stocks were at least 1.6- and 2.1-fold higher within the 100-500 cm depth range, as compared to the 0-100 cm depth range. Overall SOC and SIC stocks decreased significantly from the 5th to the 15th year of cultivation in croplands, and generally increased up to the 70th year. Both SOC and SIC stocks showed a turning point at 15 years cultivation, which should be considered when evaluating soil C sequestration. Estimates of C stocks greatly depends on soil sampling depth, and understanding the influences of land use and time will improve soil productivity and conservation in regions with deep soils.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[41730108] ; National Natural Science Foundation of China[41773141] ; National Natural Science Foundation of China[41573136] ; National Natural Science Foundation of China[41991252] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105-02]
WOS关键词	STOCKS ; RESTORATION ; NITROGEN ; CLIMATE ; SCALE ; CONVERSION ; PROFILES ; PATTERNS ; FOREST ; WATER
WOS研究方向	Physical Geography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000534794600004
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Research Program for Key Issues in Air Pollution Control
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14781]
专题	地球环境研究所_加速器质谱中心第四纪科学与全球变化卓越创新中心
通讯作者	Zhou, Weijian
作者单位	1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China 6.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 7.Pilot Natl Lab Mat Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Yu, Xia,Zhou, Weijian,Wang, Yunqiang,et al. Effects of land use and cultivation time on soil organic and inorganic carbon storage in deep soils[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2020,30(6):921-934.
APA	Yu, Xia.,Zhou, Weijian.,Wang, Yunqiang.,Cheng, Peng.,Hou, Yaoyao.,...&Wang, Ya.(2020).Effects of land use and cultivation time on soil organic and inorganic carbon storage in deep soils.JOURNAL OF GEOGRAPHICAL SCIENCES,30(6),921-934.
MLA	Yu, Xia,et al."Effects of land use and cultivation time on soil organic and inorganic carbon storage in deep soils".JOURNAL OF GEOGRAPHICAL SCIENCES 30.6(2020):921-934.