Ecosystem NPP of typical Steppe in Xilinhot based on the improved CASA model

摘要：

Introduction Net primary production (NPP) is a key component of the terrestrial carbon cycle,and it is defined as the rate at which an ecosystem accumulates energy or biomass,excluding the energy it uses for the process of respiration.The CASA (Carnegie-Ames-Stanford Approach) model is a typical and extensive model of ecosystem NPP based on light use efficiency ( Potter et al.,1993 ),but the classic CASA model has some weaknesses,such as the estimation of maximum light use efficiency (εmax ),impact to NPP from vegetation classification accuracy,and parameter calculation of the soil water model.Thus,this study used the improved CASA model (Zhu et al.,2006) to simulate NPP.

关键词： Net Primary Production (NPP) short grassland ecosystem the improved CASA Model

作者: S.Y.Li X.B.Li W.Q.Zhu B.Jia

作者单位: Department of Environmental Science of Inner Mongolia Technology University,Huhhot 010051,China College of Resources Sciences and Technology of Beijing Normal University,Beijing 100875,China

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）