IB-CAS  > 植被与环境变化国家重点实验室
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
2020
Source PublicationGLOBAL CHANGE BIOLOGY
ISSN1354-1013
Volume26Issue:8Pages:4626-4637
AbstractSoil 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.
Keywordenvironmental context interaction of nutrient additions multiple trophic levels nitrogen and phosphorus enrichments plant-soil interactions soil food webs
Subject AreaBiodiversity Conservation ; Ecology ; Environmental Sciences
DOI10.1111/gcb.15167
Indexed BySCI
Language英语
WOS KeywordBELOW-GROUND COMMUNITIES ; NET PRIMARY PRODUCTIVITY ; PHOSPHORUS LIMITATION ; MICROBIAL BIOMASS ; NITROGEN ENRICHMENT ; CO-LIMITATION ; PH GRADIENT ; DIVERSITY ; RESPONSES ; MECHANISMS
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS IDWOS:000541246200001
PublisherWILEY
SubtypeArticle
Publication PlaceHOBOKEN
EISSN1365-2486
Funding OrganizationChinese 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]
Corresponding Author Emailchendima@ctgu.edu.cn
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/21714
Collection植被与环境变化国家重点实验室
Affiliation1.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
Recommended Citation
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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