| 生物与生态 |
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| Numerical Simulation on Effect of Environmental Degeneration in Qilian Mountains |
| LI Suo-suo1,2, Lü Shi-hua1, GAO Yan-hong1, WEN Li-juan1, LIU Yuan-pu1 |
| 1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Gansu Provincial Key Laboratory of Arid Climatic Change and Disaster Reduction, Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China |
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Abstract Using the mesoscale atmospheric model MM5V3.6, we designed a control test and a sensitive test to simulate the effect of environmental degeneration in Qilian Mountains. The MM5V3.6 model can well simulate the precipitation of the study region. The environmental degeneration in Qilian Mountains would make the precipitation of the region and even of the far range decrease. Showed by test on vegetation degeneration the average precipitation would decrease by 2% for the local region. Meantime, the sensitive heat flux increases, the latent heat flux decreases, but the absolute value of latent heat flux is bigger than the absolute of sensitive heat flux, so the resultant heat flux increases. Consequently, the air temperature, the ground temperature, and the soil temperature all rise.
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Received: 24 August 2005
Published: 20 January 2007
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2007, Vol. 27 
