Soil hydrology controls on nitrous oxide and heterotrophic carbon dioxide flux
Soil water status has a strong effect on carbon dioxide and nitrous oxide emissions. Numerous water scalars have been developed to predict the relative magnitude of carbon dioxide and nitrous oxide fluxes including: water filled pore space, soil water content as a function of field capacity, and matric potential. Currently, no single water scalar has proven to be an effective scalar of both carbon dioxide and nitrous oxide fluxes across different soil types. We evaluated the ability of different soil water scalars to predict heterotrophic carbon dioxide fluxes and nitrous oxide fluxes across different soil types.
greenhouse gas nitrogen water filled pore space field capacity matric potential
M.Castellano J.Schmidt J.Kaye H.Lin
Department of Agronomy, Iowa State University, Ames, IA, 50011, USA USDA ARS, University Park, PA, USA Department of Crop and Soil Science, The Pennsylvania State University, University Park, PA,USA
国际会议
哈尔滨
英文
138-140
2010-07-13(万方平台首次上网日期,不代表论文的发表时间)