Carbon dynamics and mitigation of methane and nitrous oxide emissions in agroecosystems with Pinus ponderosa(Dougl. Ex Laws)and native pastures established on degraded volcanic soils in the Chilean Patagonia

摘要：

Introduction During the 1990s,terrestrial ecosystems captured approximately 36％ of the total carbon liberated to the atmosphere by combustion of fossil fuels.Consequently,there is a growing interest to study the potential of carbon sequestration in presently non-sustainable agro-ecosystems worldwide,including remote regions such as Patagonia,where large areas of degraded pastures and eroded soils are also encountered,and ranchers face increasing pressures to maintain the cattle-raising productivity of their land.They are encouraged to adopt silvopastoral systems as more sustainable practices that satisfy their socioeconomic necessities and contribute to mitigate atmospheric CO2.

关键词： carbon sequestration silvopastoral systems volcanic soils CO2 FIX

作者: Francis Dube Neal Stolpe Erick Zagal Venegas Miguel Espinosa Bancalari

作者单位: Facultad de Ciencias Forestales,Universidad de Concepción,Victoria 631,Casilla 160-C,Chile Departamento de Suelos,Facultad de Agronomía,Universidad de Concepción,Vicente Méndez595,Casilla 537

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）