文献类型：期刊文献

英文题名：The soil bacterial and fungal diversity were determined by the stoichiometric ratios of litter inputs: evidence from a constructed wetland

作者：Ping, Yunmei[1,2,3] Pan, Xu[1,2,3] Li, Wei[1,2,3] Wang, Jinzhi[1,2,3] Cui, Lijuan[1,2,3]

第一作者：Ping, Yunmei

通信作者：Cui, LJ[1];Cui, LJ[2];Cui, LJ[3]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, 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 101399, Peoples R China

年份：2019

卷号：9

期号：1

外文期刊名：SCIENTIFIC REPORTS

收录：;Scopus(收录号：2-s2.0-85072667769);WOS:【SCI-EXPANDED(收录号:WOS:000487586600004)】；

基金：This work was funded by the National Key R&D Program of China (2017YFC0506200) and Fundamental Research Funds for the Central Non-Profit Research Institution of CAF (CAFYBB2017SY045). We thank the teachers and students of Hangzhou Normal University for the assistance of analyzing litter qualities. We also thank Zhangjie Cai and Zhiguo Dou for helping with the experiment.

语种：英文

摘要：Plant litter is an important component in wetland ecosystems, and the role of plant litter decomposition is considered to bemportant for wetland ecosystem functions and services. However, the consequences of litter inputs have seldom been experimentally tested in real ecosystems such as constructed wetlands (CWs). The enriched nutrients in CWs might weaken the role of litter inputs on soils carbon and nitrogen cycling. Here, we conducted a two-month field experiment to examine the effects of litter inputs on the soils CWs. Our results showed that litter inputs significantly affected soil microbial (bacterial and fungi) diversities and properties (soil total nitrogen and nitrogen isotopes), and litter species with higher stoic hiometry ratios, i.e. C/N, C/P and N/P led to higher microbial diversities. However, litter species had no or weak effects on microbial activities (CO2 and CH4 flux) or on the relative abundance of microbial communities, indicating that other environmental factors in such a CW might have stronger effects on those factors than litter inputs. These results highlighted the importance of submerged plant litter in nutrient-rich wetland ecosystems and provide potential tools for managers to improve the ecosystem functions and/or services via altering microbial diversities.