摘要
采用波文比能量平衡法对暖温带具有代表性的群落辽东栎纯林夏季热量平衡进行研究 ,测定热量平衡各分量。同时用TDM(ThermalDissipationMethod)法通过测定树干液流流量通量 ,得到蒸腾耗热通量 ,进而把蒸腾和蒸发从蒸发散中分开 。
Forestry heat balance is a very important content in the forestry energy system. The heat balance in a forest could be obtained by means of Bowen-ration method. The daily trends of net radiation, the convective heat flux, the talent heat flux, the soil heat flux could also be obtained with this method. The sap flow flux could be gauged by using ICT-2000 auto meteorological station instrument with Thermal Dissipation Method, then the transpiration flux and transpiration heat flux could also be calculated, and the latent heat flux could be divided into transpiration heat flux and evaporation heat flux. Through gauging the heat balance of Quercus liaotungeusis Koidz deciduous broad-leaved stand under typical weather condition in summer in Taiyue Mount area of Shanxi Province, the total net radiation above canopy was 738.8 MJ/m 2, the canopy transpiration heat flux 139.8 MJ/m 2, the soil heat flux 45.1 MJ/m 2, the convective heat flux 261.7 MJ/m 2, and the evaporation heat flux 292.2 MJ/m 2 from July to August in 2001.
出处
《江西农业大学学报》
CAS
CSCD
2003年第2期209-214,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家自然科学基金资助项目 (3 98993 70 )
国家林业局重点项目 (2 0 0 1-3 )
