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Resource enrichment combined with biomass removal maintains plant diversity and community stability in a long-term grazed grassland
Xu, Feng-Wei; Li, Jian-Jun; Wu, Li-Ji; Lu, Xiao-Ming; Xing, Wen3; Chen, Di-Ma; Zhu, Biao; Wang, Shao-Peng; Jiang, Lin7; Bai, Yong-Fei
AbstractAims Long-term heavy grazing reduces plant diversity and ecosystem function by intensifying nitrogen (N) and water limitation. In contrast, the absence of biomass removal can cause species loss by elevating light competition and weakening community stability, which is exacerbated by N and water enrichment. Hence, how to maintain species diversity and community stability is still a huge challenge for sustainable management of worldwide grasslands. Methods We conducted a 4-year manipulated experiment in six long-term grazing blocks to explore combination of resource additions and biomass removal (increased water, N and light availability) on species richness and community stability in semiarid grasslands of Inner Mongolia, China. Important Findings In all blocks treated with the combination of resource additions and biomass removal, primary productivity increased and species richness arid community stability were maintained over 4 years of experiment. At both species arid plant functional group (PFG) levels, the aboveground biomass of treated plants remained temporally stable in treatments with the combination of N and/or water addition and biomass removal. The maintenance of species richness was primarily caused by the biomass removal, which could increase the amount of light exposure for grasses under resource enrichment. Both species asynchrony and stability of PFGs contributed to the high temporal stability observed in these communities. Our results indicate that management practices of combined resource enrichment with biomass removal, such as grazing or mowing, could not only enhance primary productivity but also maintain plant species diversity, species asynchrony and community stability. Furthermore, as overgrazing-induced degradation and resource enrichment-induced biodiversity loss continue to be major problems worldwide, our findings have important implications for adaptive management in semiarid grasslands and beyond.
Keywordbiomass removal resource addition species richness community stability plant functional groups (PFGs) species asynchrony
Subject AreaPlant Sciences ; Ecology ; Forestry
Indexed BySCI
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS IDWOS:000591564700011
Publication PlaceOXFORD
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31630010, 31320103916]
Corresponding Author Emailxufengwei@ibcas.ac.cn ; yfbai@ibcas.ac.cn
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Jiangxi Agr Univ, Coll Forestry, Collaborat Innovat Ctr Jiangxi Typ Trees Cultivat, Nanchang 330045, Jiangxi, Peoples R China
3.Inner Mongolia Agr Univ, Coll Ecol & Environm Sci, Hohhot 010011, Peoples R China
4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
5.China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Yichang 443002, Peoples R China
6.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
7.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China
8.Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA
9.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xu, Feng-Wei,Li, Jian-Jun,Wu, Li-Ji,et al. Resource enrichment combined with biomass removal maintains plant diversity and community stability in a long-term grazed grassland[J]. JOURNAL OF PLANT ECOLOGY,2020,13(5):611-620.
APA Xu, Feng-Wei.,Li, Jian-Jun.,Wu, Li-Ji.,Lu, Xiao-Ming.,Xing, Wen.,...&Bai, Yong-Fei.(2020).Resource enrichment combined with biomass removal maintains plant diversity and community stability in a long-term grazed grassland.JOURNAL OF PLANT ECOLOGY,13(5),611-620.
MLA Xu, Feng-Wei,et al."Resource enrichment combined with biomass removal maintains plant diversity and community stability in a long-term grazed grassland".JOURNAL OF PLANT ECOLOGY 13.5(2020):611-620.
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