Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?
文献类型：期刊论文
| 作者 | Wu, Haoping1,2,3; Li, Feng4; Hao, Beibei1,2,3; Zhou, Wen1; Xing, Wei1; Liu, Wenzhi1; Liu, Guihua1 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2019 |
| 卷号 | 96页码:241-249 |
| 关键词 | Nitrification Denitrification N removal Wetland restoration Lake Dianchi |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2018.09.013 |
| 英文摘要 | Lakeshore wetlands are thought to be hot spots for biogeochemical processes. However, many lakeshore wetlands have been hydrologically disconnected from the associated lake by levees that have altered the ecosystem services they provide. Lakeshore restoration projects have been undertaken to recover the hydrological connection; however, the effects of the various restoration practices on biogeochemical cycling remain unclear. Here, we compared variation in sediment nitrogen (N) cycling rates to assess the restoration benefits of N removal in a series of recently hydrologically restored lakeshore wetlands, including ponds and bottomlands, of Lake Dianchi, China. The results showed that nitrification rates were generally higher in the ponds, while de nitrification rates were higher in the bottomlands. Hydrological reconnection stimulated the development of several sediment properties critical for N cycling rates in the ponds, including increases in sediment carbon (C) and N contents; however, bottomland reconnection increased sediment moisture and decreased sediment C and N contents likely due to erosion by wind-induced wave action. Correspondingly, hydrological reconnection significantly increased the sediment N cycling rates in ponds but decreased the sediment N cycling rates in bottomlands over time. Path analyses revealed that substrate characteristics, including moisture and C and N availability, were the critical drivers regulating wetland N cycling rates. These results imply that the restoration targets could not be met simply by hydrological reconnection. Future wetland restoration requires further understanding of the relationship between changes in sediment properties and biogeochemical processes. |
| 资助项目 | National Natural Science Foundation of China[31370550] ; National Natural Science Foundation of China[31570535] ; Special S & T Projection Treatment and Control of Water Pollution[2013ZX07102-005] ; China Scholarship Council (CSC) |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000464889600024 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/7159]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, Wenzhi; Liu, Guihua |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 3.Aarhus Univ, Dept Biosci, Vejlsovej 25, DK-8600 Silkeborg, Denmark 4.Chinese Acad Sci, Dongting Lake Stn Wetland Ecosyst Res, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Haoping,Li, Feng,Hao, Beibei,et al. Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?[J]. ECOLOGICAL INDICATORS,2019,96:241-249. |
| APA | Wu, Haoping.,Li, Feng.,Hao, Beibei.,Zhou, Wen.,Xing, Wei.,...&Liu, Guihua.(2019).Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?.ECOLOGICAL INDICATORS,96,241-249. |
| MLA | Wu, Haoping,et al."Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?".ECOLOGICAL INDICATORS 96(2019):241-249. |
入库方式： OAI收割
来源：武汉植物园
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