Global patterns and drivers of soil nematodes in response to nitrogen enrichment
文献类型：期刊论文
| 作者 | Xing, Wen; Lu, Xiaoming; Niu, Shuli; Chen, Dima; Wang, Jinsong; Liu, Ya; Wang, Bingxue; Zhang, Shuang ; Li, Zhaolei; Yao, Xijun
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| 刊名 | CATENA
 |
| 出版日期 | 2022-06 |
| 卷号 | 213期号:0页码:106235 |
| ISSN号 | 0341-8162 |
| 关键词 | ELEVATED CO2 FOOD-WEB PLANT BIODIVERSITY METAANALYSIS COMMUNITY FERTILIZATION DIVERSITY ECOSYSTEMS ADDITIONS |
| 英文摘要 | Nitrogen (N) deposition significantly lessens ecosystem N limitation, and can even cause N saturation and soil acidification. The effects of N enrichment have been globally assessed for plants, microbial diversity and biomass. However, at higher trophic levels, the global patterns and controlling factors of soil nematodes fed by plants or microbes remain unclear in context of N enrichment. Here, we presented a meta-analysis of 66 N addition experiments on nematode diversity and abundance. Our results revealed a negative dependence of nematode diversity on the N addition rate; however, not for nematode abundance. Across climate gradients, N addition reduced nematode diversity in dry regions but enhanced it in moist regions. Furthermore, N inputs suppressed nematode abundance in cold regions but promoted it in warm regions. Between different trophic levels, the abundance of high trophic-level nematodes (omnivorous-carnivorous) was reduced more than low-level groups (plant-, bacteria-and fungi-feeding nematodes). This occurred through negative N-induced effects, including increased ammonium (NH4+), soil acidification, and reduced microbial biomass. This study indicates that the considerable reduction in nematode communities due to higher N loads in the future will diminish their top down impacts on plant and microbial activities and even simplify soil food web, particularly in cold and dry areas. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47266]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 通讯作者 | Tian, Dashuan |
| 作者单位 | 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 5.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Wen,Lu, Xiaoming,Niu, Shuli,et al. Global patterns and drivers of soil nematodes in response to nitrogen enrichment[J]. CATENA,2022,213(0):106235. |
| APA | Xing, Wen.,Lu, Xiaoming.,Niu, Shuli.,Chen, Dima.,Wang, Jinsong.,...&Tian, Dashuan.(2022).Global patterns and drivers of soil nematodes in response to nitrogen enrichment.CATENA,213(0),106235. |
| MLA | Xing, Wen,et al."Global patterns and drivers of soil nematodes in response to nitrogen enrichment".CATENA 213.0(2022):106235. |
入库方式： OAI收割
来源：生态环境研究中心
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