干旱区生态环境知识资源中心(Arid): 2000-2025年环境保护政策情景下中国陆地碳储量估算

Arid

	2000-2025年环境保护政策情景下中国陆地碳储量估算
其他题名	Estimates of Variation in Chinese Terrestrial Carbon Storage Under an Environmental Conservation Policy Scenario for 2000-2025
	张彩霞; 谢高地; 甄霖; 李士美; 邓祥征
来源期刊	资源与生态学报
ISSN	1674-764X
出版年	2011
卷号	2 期号:4 页码:315-321
中文摘要	政策总是通过对土地利用/土地覆被的强烈影响而影响陆地碳平衡。本研究旨在探讨环境保护政策（主要是退耕还林）政策对我国陆地碳平衡的影响，从而为政府部门等相关政策制定者提供环境保护和应对气候变化的决策支持。利用DLS(Dynamics Land System)模型对2000-2025年环境保护政策情景下的土地利用变化模拟结果和前人对碳密度的研究成果，运用碳密度法估算了该政策情景对中国陆地碳储量的影响。研究结果表明，在整个阶段，林地将增加23%，耕地和草地将分别减少37%和11%，由此会引起我国森林碳储量每年增加66.0TgC，土壤碳储量每年增加13.3 Tg C，而草地碳储量则每年减少5.7 Tg C。总体而言，在环境保护政策情景下，2000-2025年中国整个陆地生态系统的碳储量将增加1.8 Pg C，年均增加量为0.074 Pg C，而这种变化89.6%的原因源于森林碳储量的增加。
英文摘要	Policies always have strong impacts on land-use and land-cover change (LUCC), and thus indirectly affect the terrestrial carbon balance. In this paper, land use change from 2010 to 2025 in China was simulated with the Dynamics Land System (DLS) under an environmental conservation policy scenario, and the projected effect of this policy scenario on Chinese terrestrial carbon storage was evaluated. Under the simulation, forest coverage will increase by 23% while cropland and grassland will decrease by 37% and 11% respectively. Due to the large expansion of forest coverage, the forest carbon storage will have an accumulation of 66.0 Tg C y~([1]). This will take place mainly in central China in a band from the northeast to southwest. Grasslands, however, will be a carbon source of 5.7 Tg C y~(-1) in the same period as a result of the transformation of grassland to woodlands or deserts. As the carbon storage capacity of forest soil is considerably higher than that of grassland and cropland, such LUCC will eventually result in a soil carbon accumulation of 13.3 Tg C y~(-1). From 2000 to 2025, the carbon storage of Chinese terrestrial ecosystem is likely to increase by 1.8 Pg C, and thus the terrestrial ecosystem will be a carbon sink of 0.074 Pg C y~(-1), 89.6% of which will result from an increase in forest carbon storage.
中文关键词	碳储量 ; 土地利用 ; 陆地生态系统 ; 政策情景
英文关键词	carbon storage land use and cover change terrestrial ecosystems policy scenario
语种	英语
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4402930
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227677
作者单位	Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
推荐引用方式 GB/T 7714	张彩霞,谢高地,甄霖,等. 2000-2025年环境保护政策情景下中国陆地碳储量估算[J],2011,2(4):315-321.
APA	张彩霞,谢高地,甄霖,李士美,&邓祥征.(2011).2000-2025年环境保护政策情景下中国陆地碳储量估算.资源与生态学报,2(4),315-321.
MLA	张彩霞,et al."2000-2025年环境保护政策情景下中国陆地碳储量估算".资源与生态学报 2.4(2011):315-321.