期刊
ECOLOGICAL RESEARCH
卷 20, 期 3, 页码 359-365出版社
SPRINGER TOKYO
DOI: 10.1007/s11284-005-0051-z
关键词
dissolved organic carbon; nitrate; stream; forest; Lake Biwa watershed
类别
Dissolved organic carbon (DOC) and NO(3)(-) are important forms of C and N in stream water. Hypotheses concerning relationships between DOC and NO(3)(-) concentrations have been proposed, but there are no reports demonstrating a relationship between them in stream water. We observed 35 natural streams in the Lake Biwa watershed, central Japan, and found an inverse relationship between DOC and NO(3)(-) concentrations. This relationship was also found in observations of their seasonal variations in the Lake Biwa watershed. Moreover, this relationship was also found to apply to watersheds in other regions in Japan. These results suggest that forest biogeochemical processes which control DOC and NO(3)(-) concentrations in Japanese streams are closely related. Excess N availability together with a C (energy) deficit in a soil environment may explain this relationship. DOC and NO(3)(-) concentrations in streams will thus be a useful index indicating C and N availability in catchments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据