Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2019, Vol. 30 ›› Issue (5): 1589-1598.doi: 10.13287/j.1001-9332.201905.029

Previous Articles     Next Articles

Dynamics of gross primary productivity with VPM model in Changbai Mountain Natural Reserve, Northeast China.

PING Xiao-ying1,2, MA Jun3, LIU Miao1, CHANG Yu1*, ZONG Min1,2, XIONG Zai-ping1   

  1. 1Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;
    3Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai 200433, China
  • Received:2019-01-17 Revised:2019-01-17 Online:2019-05-15 Published:2019-05-15
  • Supported by:
    This work was supported by the National Research Program of China (2016YFC0500401).

Abstract: Precise estimation of gross primary productivity (GPP), the key parameter in carbon cycle analysis, plays an important role in the research of carbon cycle and global climate change. Vegetation GPP was simulated by VPM model based on MOD09A1 and climate data in Changbai Mountain Natural Reserve from 2000 to 2015. The results showed that mean GPP was 1203 g C·m-2·a-1. The annual vegetation GPP significantly increased from 2000 to 2015. There was no significant difference in the temporal trends of forest GPP at different vertical vegetation zones. However, GPP of the alpine tundra decreased remarkably. The correlation between GPP and precipitation was not significant. The positive correlation of GPP and temperature was mainly distributed in broad-leaved Korean pine forests and alpine tundra. Spring temperature had the strongest influence on GPP, with 80% pixels had a positive correlation with temperature. The GPP had a stronger correlation with temperature compared with precipitation.