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| Soil acidification reduces the effects of short-term nutrient enrichment on plant and soil biota and their interactions in grasslands | |
Xiao, Hong1,2; Wang, Bing3; Lu, Shunbao2; Chen, Dima1; Wu, Ying4; Zhu, Yuhe1; Hu, Shuijin5; Bai, Yongfei3
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| 2020 | |
| 发表期刊 | GLOBAL CHANGE BIOLOGY
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| ISSN | 1354-1013 |
| 卷号 | 26期号:8页码:4626-4637 |
| 摘要 | Soil nitrogen (N) and phosphorus (P) contents, and soil acidification have greatly increased in grassland ecosystems due to increased industrial and agricultural activities. As major environmental and economic concerns worldwide, nutrient enrichment and soil acidification can lead to substantial changes in the diversity and structure of plant and soil communities. Although the separate effects of N and P enrichment on soil food webs have been assessed across different ecosystems, the combined effects of N and P enrichment on multiple trophic levels in soil food webs have not been studied in semiarid grasslands experiencing soil acidification. Here we conducted a short-term N and P enrichment experiment in non-acidified and acidified soil in a semiarid grassland on the Mongolian Plateau. We found that net primary productivity was not affected by N or P enrichment alone in either non-acidified or acidified soil, but was increased by combined N and P enrichment in both non-acidified and acidified soil. Nutrient enrichment decreased the biomass of most microbial groups in non-acidified soil (the decrease tended to be greatest with combined N and P enrichment) but not in acidified soil, and did not affect most soil nematode variables in non-acidified or acidified soil. Nutrient enrichment also changed plant and microbial community structure in non-acidified but not in acidified soil, and had no effect on nematode community structure in non-acidified or acidified soil. These results indicate that the responses to short-term nutrient enrichment were weaker for higher trophic groups (nematodes) than for lower trophic groups (microorganisms) and primary producers (plants). The findings increase our understanding of the effects of nutrient enrichment on multiple trophic levels of soil food webs, and highlight that soil acidification, as an anthropogenic stressor, reduced the responses of plants and soil food webs to nutrient enrichment and weakened plant-soil interactions. |
| 关键词 | environmental context interaction of nutrient additions multiple trophic levels nitrogen and phosphorus enrichments plant-soil interactions soil food webs |
| 学科领域 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| DOI | 10.1111/gcb.15167 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | BELOW-GROUND COMMUNITIES ; NET PRIMARY PRODUCTIVITY ; PHOSPHORUS LIMITATION ; MICROBIAL BIOMASS ; NITROGEN ENRICHMENT ; CO-LIMITATION ; PH GRADIENT ; DIVERSITY ; RESPONSES ; MECHANISMS |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:000541246200001 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1365-2486 |
| 资助机构 | Chinese National Key Development Program for Basic Research [2016YFC0500804] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences [2015061] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570450, 31630010] |
| 作者邮箱 | chendima@ctgu.edu.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/21714 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang, Peoples R China 3.Jiangxi Normal Univ, Coll Life Sci, Nanchang, Jiangxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Yunnan Univ, Yunnan Key Lab Plant Reprod Adapt & Evolutionary, Kunming, Yunnan, Peoples R China 6.North Carolina State Univ, Dept Plant Pathol, Raleigh, NC USA |
| 推荐引用方式 GB/T 7714 | Xiao, Hong,Wang, Bing,Lu, Shunbao,et al. Soil acidification reduces the effects of short-term nutrient enrichment on plant and soil biota and their interactions in grasslands[J]. GLOBAL CHANGE BIOLOGY,2020,26(8):4626-4637. |
| APA | Xiao, Hong.,Wang, Bing.,Lu, Shunbao.,Chen, Dima.,Wu, Ying.,...&Bai, Yongfei.(2020).Soil acidification reduces the effects of short-term nutrient enrichment on plant and soil biota and their interactions in grasslands.GLOBAL CHANGE BIOLOGY,26(8),4626-4637. |
| MLA | Xiao, Hong,et al."Soil acidification reduces the effects of short-term nutrient enrichment on plant and soil biota and their interactions in grasslands".GLOBAL CHANGE BIOLOGY 26.8(2020):4626-4637. |
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