QQ客服 官方微博 反馈留言

	Soil erosion effects on soil organic carbon and an assessment within China
	Hu Y. F. ; Liu J. Y. ; Zhuang D. F. ; Wang S. Q. ; Yang F. T. ; Chen S. Q.
	2004
会议名称	Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie)
关键词	soil erosion soil organic carbon carbon dioxide emission China budget co2
页码	301-308
英文摘要	Soil erosion is a widespread geological process with strong capabilities to entrap, transport and redistribute surface soil. It is important to grade erosion intensity and estimate eroded soil mass. On the other hand, soil organic carbon pool (SOC), as the largest terrestrial carbon content, is prone to be affected by soil erosion. Soil erosion redistributes surface soil over landscape, and changes the physical environmental conditions. The consequences are depletion of SOC in eroded regions, emission of carbon dioxide during transportation and input of extra SOC in deposited sites. This paper quantified the effects of soil erosion on soil organic carbon through following three steps: firstly, soil erosion type and soil erosion intensity were determined by interpreting Landsat TM images. Secondly, through field investigation, soil type and soil profile data were collected, and SOC contents in the 0-20cm layer were constructed. Finally, supported by map algebra in Geographic Information System (GIS), soil organic carbon loss induced by soil erosion was calculated based on the national soil erosion modulus standard. Total annual SOC loss in China was about 1.595 x 10(8) ton-C yr(-1). Assuming 20% of SOC was oxidized, erosion induced CO2 emission was about 3.19 x 10(7) ton-C yr(-1).
收录类别	CPCI
会议录出版者	Spie-Int Soc Optical Engineering
语种	英语
ISSN号	0277-786X
ISBN号	0-8194-5482-6
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/25125]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Hu Y. F.,Liu J. Y.,Zhuang D. F.,et al. Soil erosion effects on soil organic carbon and an assessment within China[C]. 见:Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。