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Sound management may sequester methane in grazed rangeland ecosystems
Considering their contribution to global warming, the sources and sinks of methane (CH(4)) should be accounted when undertaking a greenhouse gas inventory for grazed rangeland ecosystems. The aim of this study was to evaluate the mitigation potential of current ecological management programs impleme...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3963030/ https://www.ncbi.nlm.nih.gov/pubmed/24658176 http://dx.doi.org/10.1038/srep04444 |
Sumario: | Considering their contribution to global warming, the sources and sinks of methane (CH(4)) should be accounted when undertaking a greenhouse gas inventory for grazed rangeland ecosystems. The aim of this study was to evaluate the mitigation potential of current ecological management programs implemented in the main rangeland regions of China. The influences of rangeland improvement, utilization and livestock production on CH(4) flux/emission were assessed to estimate CH(4) reduction potential. Results indicate that the grazed rangeland ecosystem is currently a net source of atmospheric CH(4). However, there is potential to convert the ecosystem to a net sink by improving management practices. Previous assessments of capacity for CH(4) uptake in grazed rangeland ecosystems have not considered improved livestock management practices and thus underestimated potential for CH(4) uptake. Optimal fertilization, rest and light grazing, and intensification of livestock management contribute mitigation potential significantly. |
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