The Distribution and Output of Dissolved Carbon in Typical Rivers of Sanjiang Plain, China
| 第一作者： |
王莉霞 |
| 英文第一作者： |
Wang, L. X. |
| 联系作者： |
阎百兴 |
| 英文联系作者： |
Yan, B. X. |
| 发表年度： |
2013 |
| 卷： |
22 |
| 摘要： |
Dissolved organic carbon (DOC) in rivers plays an important link from terrestrial to marine environments in the global carbon cycle. The Sanjiang Plain, a floodplain encompassing many freshwater wetlands, had been suffering from extensive buildings of drainage ditches and addition of chemical fertilizers in the past 60 years. The distribution of DOC in typical rivers (divided into main and marshy rivers) of Sanjiang Plain from 2006 to 2008 was studied. Marshy rivers including Bielahong River, Naoli River, and Yalv River (mean concentration, 9.03 mg/L) showed higher DOC levels than main rivers (mean concentration, 6.63 mg/L) including Amur River, Ussuri River, and Songhua River. It was estimated that about 1.54 million tons of DOC from Amur River were brought into Okhotsk Sea annually. The geographical or seasonal variation between main and marshy rivers has also proven that the farming activity could increase DOC output, and the risk that increasing DOC concentration in growing season potentially increase the pollutant mobility and toxicity should be paid more attention. |
| 刊物名称： |
Fresenius Environmental Bulletin |
| 参与作者： |
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