文献类型：期刊文献

英文题名：Nutrient Resorption from Leaves of Wetland Plants in a Constructed Wetland Depends on Green Leaf Nutrient Content and Life Form

作者：Pan, Xu[1,2,3] Ping, Yunmei[1,2,3] Cui, Lijuan[1,2,3] Zhang, Xiaodong[1,2,3] Li, Wei[1,2,3] Hu, Yukun[1,2,3] Cornelissen, Johannes H. C.[4]

第一作者：Pan, Xu;潘旭

通信作者：Cui, LJ[1];Cui, LJ[2];Cui, LJ[3]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, 1 Dongxiaofu,Xiangshan Rd, Beijing 100091, Peoples R China;[2]Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China;[3]Beijing Hanshiqiao Natl Wetland Ecosyst Res Stn, Beijing 100091, Peoples R China;[4]Vrije Univ, Fac Sci, Dept Ecol Sci, Syst Ecol, NL-1081 HV Amsterdam, Netherlands

年份：2020

卷号：40

期号：5

起止页码：983-991

外文期刊名：WETLANDS

收录：;Scopus(收录号：2-s2.0-85076601659);WOS:【SCI-EXPANDED(收录号:WOS:000566098700005)】；

基金：This study was supported by the Fundamental Research Funds for the Central Non-Profit Research Institution of CAF (CAFYBB2017SY045) and by National Key R&D Program of China (2017YFC0506200).

语种：英文

外文关键词：Constructed wetlands; Ecosystem services; Nutritional status; Nutrient conservation strategy; Plant functional traits; Wetland plants

摘要：Leaf nutrient resorption is a fundamental process, which prevails in nutrient-poor ecosystems. However, few studies have focused on this process in nutrient-rich ecosystems, especially in eutrophic constructed wetland (CWs). Thus, insight into the nutrient resorption processes of different species in CWs might have important implications for wetland restoration and water purification. Here, we assessed the leaf nitrogen and phosphorus resorption efficiencies and proficiencies of 11 plant species (4 floating and 7 emergent plants) from a CW, and related them to both plant functional traits and environmental variables to develop better predictive power of resorption processes across species. Our results showed that emergent and floating plants, respectively, resorbed 37.4% vs. 8.6% N and 50.1% vs. 23.3% P during nutrient resorption in such a nutrient-rich CW. Green leaf nutrient was the best predictor for the nutrient resorption efficiencies and proficiencies in this CW. Interspecific variation in nutrient resorption defines an important strategy for plant nutrient recycling in nutrient-rich wetland ecosystems, and provide a tool for optimizing the efficiency and timing of nutrient capture via foliage harvesting. This link between wetland plant functions and wetland ecosystem services will thus be beneficial for the nutrient management of CWs in future.