期刊
ECOLOGICAL ENGINEERING
卷 34, 期 4, 页码 276-288出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecoleng.2008.07.012
关键词
Tropical wetlands; Treatment wetlands; Climate change; Methane; Carbon sequestration; Wetland education
资金
- U.S. Department of Energy
EARTH University is a small agronomic university with a theme of sustainability in eastern Costa Rica. Several natural and constructed wetlands on its campus are used for research, water quality improvement, and higher education. It has become an important location for research and teaching on humid tropical wetland ecology and management. A 112-ha flow-through Raphia taedigera (Arecaceae) forested wetland is being used for climate change research, focusing on carbon sequestration and methane generation. Methane emissions are measured seasonally and are comparable to rates in tropical wetlands published elsewhere. Carbon sequestration by the wetland appears to be substantially higher than similar flow-through temperate zone wetlands. Treatment wetlands are used on campus to improve water quality of effluents from an animal farm, a dairy plant, a landfill, and a banana paper plant. Water quality was substantially improved in all of these wetlands except the landfill leachate wetland. All of these campus wetlands have been integrated into the four-year education program of EARTH University and 22 undergraduate projects have been completed on wetlands over the past 14 years. (C) 2008 Elsevier B.V. All rights reserved.
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