城市次生栎林的热量收支  

Heat Balance of the Secondary Oakery in Urban Forest

作　　者：吴力立[1] 董家文[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2002年第2期52-54,共3页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业局重点课题"江苏下蜀城市森林生态系统定位研究"(96-3 1)

摘　　要：研究晴好天气下城市次生栎林热量收支中各项的昼变化 ,结果表明它们与太阳辐射的日变化相似呈单波形 ;同时 ,相同时刻中净辐射值达太阳辐射值的 60 %以上才能保证林地获得热量 ,潜热和显热量占净辐射的 88%以上。The daytime variation of the heat balance in the secondary oakery has been analyzed in the weather of cloudless and partly cloudiness.The results indicate that daytime changes of the income and outputs of the oakery heat have analogy with the diurnal variation of the receiving solar above the canopy:it is a single wave model.When the net radiation is over 60% of the solar radiation,it supplies the soil heat storage.The expenses of the latent heat and the sensible heat are over 88% of the net radiation in the same moment.

关 键 词：太阳辐射 净辐射 潜热 显热 土壤贮存热 城市次生栎林 能量收支 热量收支 

分 类 号：S718.512.2[农业科学—林学]