文献类型：期刊文献

英文题名：Response of Soil Fungal Diversity to Nitrogen Deposition in a Deyeuxia augustifolia Wetland of Sanjiang Plain, Northeast, China

作者：Sui, Xin[1] Zhang, Rongtao[1] Xu, Nan[1] Liu, Yingnan[1] Zhong, Haixiu[1] Wang, Jifeng[1] Lei, Jingpin[2] Li, Maihe[3] Zhang, Xiuyue[4] Ni, Hongwei[1,5]

第一作者：Sui, Xin

通信作者：Ni, HW[1];Ni, HW[2]

机构：[1]Heilongjiang Acad Sci, Inst Nat & Ecol, Harbin 150040, Heilongjiang, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[3]WSL, Swiss Fed Res Inst, Birmensdorf, Switzerland;[4]Northeast Forestry Univ, Harbin 150040, Heilongjiang, Peoples R China;[5]Harbin Normal Univ, Harbin 150025, Heilongjiang, Peoples R China

年份：2017

卷号：19

期号：4

起止页码：841-848

外文期刊名：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000408942100035)】；

基金：This research was supported by the National Natural Science Foundation of China (NO. 31470019, 31400429), Fundamental Research Funds for the Central Non-profit Research Institution of CAF (CAFYBB2014ZD001). Fund of Heilongjiang academy of sciences (STJB16-01, ZNJZ2017ZR01).

语种：英文

外文关键词：Fungal diversity; Deyeuxia augustifolia wetland; ITS rDNA; Nitrogen deposition

摘要：In order to understand the effects of nitrogen deposition on soil fungal diversity, a study was conducted with a Deyeuxia augustifolia wetland in the Sanjiang Plain, China, using an experimental setup simulating nitrogen deposition at different loads over a five-year period. Three conditions were investigated: N1 (no artificial deposits, control), N2 with low-level nitrogen deposition (4 g N.hm(-2) a(-1)) and N3 with high-level nitrogen deposition (8 g N.hm(-2) a(-1)) . At the end of the experiment the soil physiochemical characteristics were determined and high-throughput sequencing was employed to monitor the soil fungal diversity. The addition of exogenous nitrogen to the soils changed the physicochemical properties of the soils and affected the fungal community composition and the relative abundance of species: low doses increased the diversity while high doses reduced the fungal diversity. In each of the three types of nitrogen-amended soils, the most predominant phyla were Ascomycota followed by Basidiomycota. The abundance of Basidiomycota decreased with nitrogen deposition, while Ascomycota changed in the opposite direction. A heatmap tree based on ITS rDNA sequences illustrated how different fungal communities responded differently to nitrogen deposition. The findings in the present study provide fundamental data and theoretical insights that can be employed to predict the effects of atmospheric nitrogen deposition on wetland soil fungi and wetland ecosystems in Sanjiang Plain. (C) 2017 Friends Science Publishers