The temporal and spatial patterns of terrestrial net primary productivity in China

编号 zgly0000311685

文献类型 期刊论文

文献题名 The temporal and spatial patterns of terrestrial net primary productivity in China

学科分类 220.1060;森林生态学

作者 TAOBo  LIKerang  SHAOXuemei  CAOMingkui 

作者单位 Inst.ofGeographicSciencesandNaturalResourcesResearch  CAS  Beijing100101  China 

母体文献 Journal of Geographical Sciences;地理学报: 英文版 

年卷期 2003,13(2)

页码 163-171

年份 2003 

分类号 Q948  X171.1 

关键词 中国  净初级生产量  时空分布  陆地生态系统  气候波动 

文摘内容 In this paper,we use CEVSA,a process-based model,which has been validated on regional and global scales,to explore the temporal and spatial patterns of Net Primary Productivity (NPP) and its responses to interannual Climate fluctuations in China''''''''s terrestrial ecosystems over the period 1981-1998,The estimated results suggest that ,in this study period,the averaged annual total NPP is about 3.09 Gt C/yr^-1 and average NPP is about 342 g C/m^2,The results also showed that the precipitaion was the key factor determining the spsatial distribution and temporal trends of NPP. Temporally,the total NPP exhibited a slowly increasing trend.In some ENSO years( e.g.1982,1986,1997)NPP decreased clearly compared to the previous year,but the relationship between ENSO and NPP is decreased clearly compared to the previous year,but the relationship between ENSO and NPP is complex due to the integrated effects of monsoons and regional differentiation. Spatially,the relatively high NPP occurred at the middle high latitudes,the low latitudes and the lower appeared at the middle latitudes,On national scale,precipitaion is the key conntro factor on NPP variations and there exists a weak correlation between NP and temperature ,but regional responses are greatly different。