摘要
在安徽省黄山市，于夏季对杉—茶间作园与纯茶园进行了微气象观测研究，用梯度法和热量平衡法计算了土壤热通量、潜热通量和湍流热通量。结果表明，热量平衡各分量值一般白天为正、夜间为负，其值的日较差杉—茶间作园比纯茶园小，且杉—茶间作园最大、最小值出现的时间较纯茶园滞后。热量平衡各分量中，潜热通量占净辐射的比值最大（约１／３～１／２或更多）；湍流热通量值除短时间偶而较大外一般较小；土壤热通量约占净辐射的１／６。杉—茶间作园潜热通量与湍流热通量的日变化特征与纯茶园差异较大。
A micro meteorological observation/study in tree tea intercropping plantation and pure tea plantation for comparison have been carried out in Huangshan City,Anhui Province.The soil heat flux,latent heat flux and turbulence heat flux have been calculated by gradient and heat balance methods.Generally speaking, component values of heat balance are positive in day time but negative at night,the date difference of these values from Chinese fir tea intercropping plantation are smaller than those from pure tea plantation and the appearance time of the maximum and minimum values in the former plantation are coming later.Among all component values of heat balance,the latent heat flux occupies the highest proportion from net radiation, which is around 1/3～1/2 or more,generally,turbulence heat flux is lower but it is possible to come higher occasionally in short time while soil heat flux occupies only 1/6 of net radiation. There is a rather obvious difference on daily dynamic properties of latent heat flux and turbulence heat flux between the two kinds of plantations mentioned above.
出处
《林业科学研究》
CSCD
北大核心
1996年第2期170-175,共6页
Forest Research
基金
加拿大国际发展研究中心(IDRC)资助
关键词
杉木
茶园
间作
热量平衡
tea plantation, forest tea intercropping plantation, heat balance, component value dynamic
