Some Phenomena of the Interaction Between Vegetation and a Atmosphere on Multiple Scales

• Published in: Advances in atmospheric sciences 2006-07, Vol.23 (4), p.639-648
• Main Author: 胡隐樵 陈晋北 郑元润 李国庆 左洪超
• Format: Article
• Language: English
• Subjects: Arid zones; Atmosphere; Atmospheres; Climate change; Climate models; Distribution patterns; Ecosystems; Fluid flow; Global climate; Heterogeneity; Land; Parametrization; Photosynthesis; Physiology; Studies; Surface chemistry; Turbulence; Turbulent flow; Vegetation; 大气圈; 干旱区; 气候变化; 生态系统; 降雨量
• ISSN: 0256-1530; 1861-9533
• DOI: 10.1007/s00376-006-0639-4

This article studies the response of the distribution pattern and the physiological characteristics of the ecosystem to the spontaneous precipitation and the interaction between vegetation and the atmosphere on multiple scales in arid and semi-arid zones, based on measured data of the ecological physiological parameters in the Ordas Plateau of northern China. The results show that the vegetation biomass and the energy use efficiency of photosynthesis are especially sensitive to the annual precipitation; strong and complex interactions exist between the vegetation and the atmosphere on multiple scales leading to supernormal thermal heterogeneity of the underlying surface, the strong vortex movement and turbulence. This study can facilitate understanding of the land surface processes and the influences of global climate change as well as human activities on the human environment in the arid and semi-arid zones. It also aids in improving the parameterization schemes of turbulent fluxes of a heterogeneous underlying surface for land surface processes in climate models.