Exploring the effects of warming and nitrogen deposition on desert steppe based on soil nematodes
文献类型： 外文期刊
作者： Gao, Zhiwei 1 ; Huang, Jing 1 ; Gao, Wei 4 ; Jia, Meiqing 5 ; Li, Xiaodan 6 ; Han, Guodong 2 ; Zhang, Guogang 1 ;
作者机构： 1.Tianjin Normal Univ, Coll Life Sci, Tianjin 300387, Peoples R China
2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010019, Peoples R China
3.Tianjin Normal Univ, Tianjin Key Lab Anim & Plant Resistance, Tianjin, Peoples R China
4.Tianjin Acad Agr Sci TAAS, Tianjin Inst Agr Resources & Environm, Tianjin, Peoples R China
5.Tianjin Normal Univ, Key Lab Water Resource & Environm, Tianjin, Peoples R China
6.Tianjin Agr Univ, Coll Food Sci & Biotechnol, 22 Jinjing Rd, Tianjin 300384, Peoples R China
关键词： high-throughput sequencing; network analysis; nitrogen addition; soil nematode; warming
期刊名称：LAND DEGRADATION & DEVELOPMENT （ 影响因子：4.377； 五年影响因子：5.205 ）
ISSN： 1085-3278
年卷期：
页码：
收录情况： SCI
摘要： The combined effects of warming and increased nitrogen (N) deposition in various ecosystems have become global issues. We used high-throughput sequencing in an 8-year field experiment to evaluate the impacts of the interactions between warming and nitrogen addition on soil nematode communities in a desert steppe. The soil nematode community presented with a certain degree of tolerance to warming. Warming mainly altered soil nematode diversity and community stability in deep soils whereas nitrogen addition primarily affected the nematode community in surface soils. Moreover, warming interacted with nitrogen addition exacerbated its negative effects on nematode richness and diversity. A Mantel analysis showed that soil pH was significantly negatively correlated with soil NH4+ and NO3- content. All three soil physicochemical (pH, NH4+ and NO3-) parameters were significantly correlated with desert steppe soil nematode community structure. Based on network and relative abundance analyses, we determined that Paratylenchus, Cervidellus, and Acrobeloides were the major hub soil nematode genera responding to soil warming and nitrogen addition in a desert steppe. The present study comprehensively analyzed the responses of desert steppe soil nematode communities to warming and nitrogen addition and provided an exemplar for studying the impact of environmental factors on soil nematodes communities worldwide.
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