科研成果
  成果统计  
  获奖
  论文
  专著
  专利
  新品种
  软件著作权
  成果转化  
  成果
  案例
  动态
  · 最新动态
  · 人才招聘
  · 专题
  ·
  · 学会学报
  · 信息服务
  您现在的位置:首页 > 科研成果 > 论文
 
论文编号:
作者:
作者: Haoping Wu,Feng Li,Beibei Hao,Wen Zhou, Wei Xing,Wenzhi Liu*, Guihua Liu*.
作者所在部门:
作者所在部门:
通讯作者:
通讯作者:
刊物名称:
刊物名称: Ecological Indicators
论文题目: Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?Ecological Indicators
论文题目: Does hydrological reconnection enhance nitrogen cycling rates in the lakeshore wetlands of a eutrophic lake?
摘要:
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 denitrification 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.

年:
卷: 96
期:
页: 241-249
收录类别:
影响因子:
论文出处:
论文出处:
外单位作者单位:
外单位作者单位:
备注:

关闭窗口