"We note that drained wetlands which have been forested or used for agricultural purposes are a significant potential source of greenhouse gases of a magnitude that is at least comparable with the industrial sector's greenhouse gas emissions in Sweden."
Emissions from these drained wetlands can be reduced, but that involves rewetting the land -- resulting in a negative impact on forestry production. According to the researchers, compromises may be necessary.
"As long as wetlands remain wet, only methane is given off," says Åsa Kasimir Klemedtsson from the Department of Earth Sciences at the University of Gothenburg. "However, for more than a hundred years land has been drained for agriculture and forestry, producing large quantities both carbon dioxide and nitrous oxide."
No comments:
Post a Comment