气候变化领域集成服务门户(CCPortal): Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores

CCPortal

DOI	10.1038/s41893-020-0490-0
	Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores
	Sitters J.; Kimuyu D.M.; Young T.P.; Claeys P.; Olde Venterink H.
发表日期	2020
ISSN	2398-9629
起始页码	360
结束页码	366
卷号	3 期号:5
英文摘要	Wild herbivore populations are declining in many African savannas, which is related to replacement by livestock (mainly cattle) and the loss of megaherbivores. Although some livestock management practices may be compatible with the conservation of native savanna biodiversity, the sustainability of these integrated wild herbivore/livestock management practices is unknown. For instance, how will these herbivore mixes influence key processes for the long-term functioning of savanna ecosystems, such as soil carbon, nitrogen and phosphorus pools and cycling? The Kenya Long-term Exclosure Experiment studies the ecosystem consequences of manipulating the presence and absence of wild herbivores and cattle at moderate densities in a ‘black cotton’ savanna. Here we show that after 20 years, cattle presence decreased total soil carbon and nitrogen pools, while the presence of megaherbivores (mainly elephants) increased these pools and even reversed the negative effects of cattle. Our results suggest that a mix of cattle at moderate densities and wild herbivores can be sustainable, provided that the assemblage of wild herbivores includes the largest species. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Animals; Biodiversity; Carbon; Forestry; Lakes; Nitrogen; Soils; Experiment study; Key process; Management practices; Nitrogen and phosphorus; Nutrient pools; Savanna ecosystems; Soil carbon; Total soil carbon; Ecosystems
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163493
作者单位	Ecology and Biodiversity, Department Biology, Vrije Universiteit Brussel, Brussels, Belgium; Mpala Research Centre, Nanyuki, Kenya; Department of Natural Resources, Karatina University, Karatina, Kenya; Department of Plant Sciences, University of California, Davis, CA, United States; Analytical, Environmental and Geo-Chemistry, Vrije Universiteit Brussel, Brussels, Belgium
推荐引用方式 GB/T 7714	Sitters J.,Kimuyu D.M.,Young T.P.,et al. Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores[J],2020,3(5).
APA	Sitters J.,Kimuyu D.M.,Young T.P.,Claeys P.,&Olde Venterink H..(2020).Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores.Nature Sustainability,3(5).
MLA	Sitters J.,et al."Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores".Nature Sustainability 3.5(2020).