Response of Soil Microbe Quantity and Active Carbon in Wetland to CO2 Elevation during Growth Phase
文献类型：会议论文
| 作者 | Zhao Guangying ; Liu Jingshuang ; Wang Yang ; Chen Yanmei |
| 出版日期 | 2009 |
| 会议名称 | International Symposium on Environmental Science and Technology |
| 会议日期 | JUN 02-05, 2009 |
| 会议地点 | Shanghai, PEOPLES R CHINA |
| 关键词 | microbe quantity active carbon CO2 elevation wetland |
| 英文摘要 | An experiment was carried out with different treatments in nitrogen supply (0, 5, 15 g.m(-2)) and CO2 level (350 vs 700 mu mol.mol(-1)) in the OTCs (open top chamber) to investigate soil microbe quantity and active carbon in wetland of Sanjiang Plain. The results showed that the response of soil organic carbon to elevated CO2 was slight, but there was a definite increase in all the active carbon pools with different nitrogen level on exposure to elevated CO2 concentration during the growth phase, except LBC with high nitrogen supply. Higher microbe quantity was also found under elevated CO2 concentration. Bacteria and fungi quantity had increased by 13.51% and 21.0% respectively. In, addition, elevated CO2 concentration increased aboveground and belowground biomass of Calamagrostis angustifolia, especially under ample nitrogen fertilization application. Baterial and fungi quantity showed strong relativity with plant biomass. Regression analysis also indicated MBC, DOC and CHC had strong relationship with biomass, especially with belowground biomass. Increased soil microbe quantity and active organic carbon were presumedly due to belowground biomass and root secretion enhancement under elevated CO2. |
| 会议主办者 | Chinese Soc Environm Sci, Beijing Inst Technol, Donghua Univ, Key Lab Explos Sci & Technol |
| 会议录 | PROGRESS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, VOL II, PTS A AND B
 |
| 会议录出版者 | SCIENCE PRESS BEIJING |
| 会议录出版地 | BEIJING |
| 语种 | 英语 |
| 源URL | [http://159.226.123.10/handle/322005/4745]  |
| 专题 | 东北地理与农业生态研究所_合作研究组 |
| 推荐引用方式 GB/T 7714 | Zhao Guangying,Liu Jingshuang,Wang Yang,et al. Response of Soil Microbe Quantity and Active Carbon in Wetland to CO2 Elevation during Growth Phase[C]. 见:International Symposium on Environmental Science and Technology. Shanghai, PEOPLES R CHINA. JUN 02-05, 2009. |
入库方式： OAI收割
来源：东北地理与农业生态研究所
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