Seasonal Changes and Vertical Distributions of Soil Organic Carbon Pools under Conventional and No-Till Practices on Loess Plateau in China

doi:10.2136/sssaj2014.02.0069

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 旱作节水研究室

	Seasonal Changes and Vertical Distributions of Soil Organic Carbon Pools under Conventional and No-Till Practices on Loess Plateau in China
	Liu, Enke 1,2; Chen, Baoqing 1,3; Yan, Changrong 1,2; Zhang, Yanqing 1,2; Mei, Xurong 1,2; Wang, Jianbo 1,2
刊名	SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
	2015
卷号	79 期号:2 页码:517-526
ISSN号	0361-5995
DOI	10.2136/sssaj2014.02.0069
通讯作者	Liu, Enke
英文摘要	Tillage practices affect soil organic carbon (SOC) pools, which in turn influence soil ecosystem processes. In this study we measured the effects of long-term conventional tillage (CT) and no-till (NT) practices on SOC and its fraction over the winter wheat growing season in surface and subsurface soils. Soil samples were taken during five physiological stages of winter wheat growth to a depth of 60 cm from the long-term (19 yr) experimental station on Loess Plateau in China. While the SOC content increased slowly in the surface soils during winter wheat growth with the NT treatment, it showed less fluctuation with the CT treatment. On average, NT treatment resulted in 82 and 53% higher SOC content in depth of 0 to 5 and 5 to 10 cm than CT treatment (P < 0.05). However, seasonal variations in microbial biomass carbon (MBC) and particulate organic carbon (POC) were similar under NT and CT, and showed maximum values in before-winter anthesis stage. The dissolved organic carbon (DOC) trend was highest before sowing, decreased before the winter and jointed stages, and increased again during the anthesis stage. Particulate organic carbon, MBC, and DOC were all significantly higher with NT than with CT in the upper 10 cm. Soil depth affected SOC and its fraction which decreased from surface to subsurface soil. The POC, MBC, and DOC were highly correlated with the SOC. This study demonstrated that measurements of the effect of tillage practices on SOC based on SOC fractions should include both seasonal changes and profile distribution.
学科主题	Soil Science
语种	英语
出版者	SOIL SCI SOC AMER
WOS记录号	WOS:000351640900018
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19764]
专题	农业环境与可持续发展研究所_旱作节水研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Minist Agr Peoples Republ China MOA, Key Lab Dryland Farming Agr, Beijing 100081, Peoples R China 3.Univ Liege, Gembloux Agrobio Tech, BE-5030 Gembloux, Belgium
推荐引用方式 GB/T 7714	Liu, Enke,Chen, Baoqing,Yan, Changrong,et al. Seasonal Changes and Vertical Distributions of Soil Organic Carbon Pools under Conventional and No-Till Practices on Loess Plateau in China[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,2015,79(2):517-526.
APA	Liu, Enke,Chen, Baoqing,Yan, Changrong,Zhang, Yanqing,Mei, Xurong,&Wang, Jianbo.(2015).Seasonal Changes and Vertical Distributions of Soil Organic Carbon Pools under Conventional and No-Till Practices on Loess Plateau in China.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,79(2),517-526.
MLA	Liu, Enke,et al."Seasonal Changes and Vertical Distributions of Soil Organic Carbon Pools under Conventional and No-Till Practices on Loess Plateau in China".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 79.2(2015):517-526.