Greenhouse Gas Emissions from U.S. Hydropower Reservoirs: FY2011 Annual Progress Report

doi:10.2172/1050345

GSTDTAP > 地球科学

DOI	10.2172/1050345
报告编号	ORNL/TM-2012/136
来源ID	OSTI ID: 1050345
	Greenhouse Gas Emissions from U.S. Hydropower Reservoirs: FY2011 Annual Progress Report
	Stewart, Arthur J [ORNL]; Mosher, Jennifer J [ORNL]; Mulholland, Patrick J [ORNL]; Fortner, Allison M [ORNL]; Phillips, Jana Randolph [ORNL]; Bevelhimer, Mark S [ORNL]
	2012-05-01
出版年	2012
语种	英语
国家	美国
领域	地球科学
英文摘要	The primary objective of this study is to quantify the net emissions of key greenhouse gases (GHG) - notably, CO{sub 2} and CH{sub 4} - from hydropower reservoirs in moist temperate areas within the U.S. The rationale for this objective is straightforward: if net emissions of GHG can be determined, it would be possible to directly compare hydropower to other power-producing methods on a carbon-emissions basis. Studies of GHG emissions from hydropower reservoirs elsewhere suggest that net emissions can be moderately high in tropical areas. In such areas, warm temperatures and relatively high supply rates of labile organic matter can encourage high rates of decomposition, which (depending upon local conditions) can result in elevated releases of CO{sub 2} and CH{sub 4}. CO{sub 2} and CH{sub 4} emissions also tend to be higher for younger reservoirs than for older reservoirs, because vegetation and labile soil organic matter that is inundated when a reservoir is created can continue to decompose for several years (Galy-Lacaux et al. 1997, Barros et al. 2011). Water bodies located in climatically cooler areas, such as in boreal forests, could be expected to have lower net emissions of CO{sub 2} and CH{sub 4} because their organic carbon supplies tend to be relatively recalcitrant to microbial action and because cooler water temperatures are less conducive to decomposition.
英文关键词	Greenhouse Gases
URL	查看原文
来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/5728
专题	地球科学
推荐引用方式 GB/T 7714	Stewart, Arthur J [ORNL],Mosher, Jennifer J [ORNL],Mulholland, Patrick J [ORNL],et al. Greenhouse Gas Emissions from U.S. Hydropower Reservoirs: FY2011 Annual Progress Report,2012.