Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores
Negative effects of cattle on soil carbon and nutrient pools reversed by megaherbivores
复制标题
大型食草动物逆转了牛对土壤碳和养分库的负面影响
DOI:
10.1038/s41893-020-0490-0
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发表时间:
2020
影响因子:
27.6
通讯作者:
Olde Venterink, Harry
中科院分区:
文献类型:
--
作者:
Sitters, Judith;Kimuyu, Duncan M.;Young, Truman P.;Claeys, Philippe;Olde Venterink, Harry
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.
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影响因子:
4.6
作者:
Hempson GP;Archibald S;Bond WJ
通讯作者:
Bond WJ
DOI:
10.1002/eap.1649
发表时间:
2018
期刊:
Ecological applications : a publication of the Ecological Society of America
影响因子:
--
作者:
C. Riginos;Lauren M. Porensky;K. Veblen;T. Young
通讯作者:
T. Young
影响因子:
6.4
作者:
Sankaran, Mahesh;Ratnam, Jayashree;Hanan, Niall
通讯作者:
Hanan, Niall
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
C. Skarpe
通讯作者:
C. Skarpe
影响因子:
4
作者:
Judith Sitters;P. Edwards;W. Suter;H. Olde Venterink
通讯作者:
H. Olde Venterink