干旱区生态环境知识资源中心(Arid): 草地生态管理下内蒙古草地土壤有机碳库动态研究

Arid

	草地生态管理下内蒙古草地土壤有机碳库动态研究
其他题名	Dynamic Study on Soil Organic Carbon Reservoir in Inner Mongolia Grassland Under Grassland Ecological Management
	罗文蓉; 胡国铮; 高清竹
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2020
卷号	36 期号:12 页码:1588-1597
中文摘要	为探究草地生态管理措施下土壤有机碳库的动态变化,科学评估草地生态建设成效及草地碳循环,以内蒙古草原为研究区,基于IPCC Tier 2碳收支清单方法,分析20012015年内蒙古各管理草地面积变化动态,并估算不同管理措施(禁牧、休牧、轮牧、围栏、改良和人工种草)下内蒙古不同类型草地(温带草甸草原、温带典型草原和温带荒漠草原)表层土壤有机碳储量。结果表明: (1) 20012015年内蒙古各管理草地面积变化不一致,活动面积整体随时间呈显著增加趋势(P<0.01); (2)不同草地管理措施下土壤固碳速率变化不同。禁牧和休牧措施下的土壤固碳速率呈显著上升趋势(P <0.05),草地管理措施促进土壤固碳; (3) 20012015年内蒙古草地总体表现为碳汇,采用整合分析(Meta-analysis)得到不同草地管理措施下土壤有机碳的确定区间,土壤有机碳变化速率平均为(473.7053.93)万t·a~(-1)(以C计);不同类型草地土壤固碳速率均增加,其中典型草原的年变化量最大,平均为(174.2 274.70)万t·a~(-1)(以C计) 。内蒙古草地生态系统具有较大的碳汇潜力,在未来全球碳平衡中将发挥更大的作用;草地生态管理提升了土壤有机碳汇速率,不仅有利于北方草地的生态保护,也为我国生态、经济和社会效益提供了保障。
英文摘要	In order to explore the dynamic changes of soil organic carbon pool under the grassland ecological management and evaluate the effect of grassland ecological construction and grassland carbon cycle scientifically,Inner Mongolia grassland was taken as the research area,based on IPCC Tier 2. Carbon budget list method. The dynamic change of grassland area in Inner Mongolia from 2001 to 2015 was analyzed,and the surface soil organic carbon reserves of different types of grassland (temperate meadow grassland,temperate typical grassland and temperate desert grassland) in Inner Mongolia under the implementation of different management measures (grazing prohibition,rest grazing,rotation grazing,fencing, improvement,grass planting) was estimated. The results show that: (1) From 2001 to 2015,the dynamic changes of grassland area in Inner Mongolia were not consistent. The overall active area increased significantly with time (P<0.01). (2) Soil carbon sequestration rate changed under different grassland management measures. Soil carbon sequestration rate showed a significant increase under grazing prohibition and grazing cessation (P<0.05) and grassland management measures promoted soil carbon sequestration. (3) From 2001 to 2015,Inner Mongolia grassland showed a carbon sink on the whole. Meta-analysis was used to determine the range of soil organic carbon under different grassland management measures. The average change rate of soil organic carbon was (473.7053.93) 10~4 t·a~(-1). Soil carbon sequestration rates of different grassland types increased and the annual variation of typical grassland was the largest,with an average of (174.2274.70) 10~4 t·a~(-1). Inner Mongolia grassland ecosystem has great carbon sink potential and will play a greater role in global carbon balance in the future. Grassland ecological management has effectively improved soil organic carbon sink rate,which is not only conducive to the ecological protection of northern grasslands,but also provides a guarantee for China's ecological,economic and social benefits.
中文关键词	管理措施 ; 内蒙古草地 ; 有机碳储量 ; 整合分析(Meta-analysis)
英文关键词	management measures Inner Mongolia grassland organic carbon reserves Meta-analysis
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6885565
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353812
作者单位	罗文蓉, 中国农业科学院农业环境与可持续发展研究所, 农业部农业环境与气候变化重点实验室, 北京 100081, 中国. 胡国铮, 中国农业科学院农业环境与可持续发展研究所, 农业部农业环境与气候变化重点实验室, 北京 100081, 中国. 高清竹, 中国农业科学院农业环境与可持续发展研究所, 农业部农业环境与气候变化重点实验室, 北京 100081, 中国.
推荐引用方式 GB/T 7714	罗文蓉,胡国铮,高清竹. 草地生态管理下内蒙古草地土壤有机碳库动态研究[J],2020,36(12):1588-1597.
APA	罗文蓉,胡国铮,&高清竹.(2020).草地生态管理下内蒙古草地土壤有机碳库动态研究.生态与农村环境学报,36(12),1588-1597.
MLA	罗文蓉,et al."草地生态管理下内蒙古草地土壤有机碳库动态研究".生态与农村环境学报 36.12(2020):1588-1597.