摘要
1986年4～8月,在油桐重点产区湖南、湖北5县12个地段65个测点,对油桐纯林内的太阳辐射分布进行观测研究,结果表明:油桐林内太阳辐射的垂直分布与树冠形状有关,塔形树冠内的太阳辐射分布均匀,到达量多;水平分布与树冠的方位和枝条的部位有关,南向方位或下坡方向所在方位的到达量多,枝条外端的到达量多;油桐叶片对太阳辐射的吸收率与品种有关,葡葡桐大于小米桐。
A study has been pursued of the solar distribution in tung oil treepure stands on 65 observation sites of 16 plots in 5 counties, the keyproduction bases of Hunan and Hubei. The vertical distribntion of solarradiation bears a relationship to the shape of the tree crown. In thetower-shaped crown solar radiation distributes uniformly, with more radiationreaching the crown. The horizontal distribution of solar radiation has arelation to the aspect of the crown and the part of the branch. Moreradiation reaches the crown with a southern or a sloping aspect as well asthe upper part of the branch. The radiation absorption rate of the leaf isrelated to the varieties of the species.
出处
《中南林学院学报》
CSCD
1989年第2期161-166,共6页
Journal of Central South Forestry University
关键词
油桐林
太阳
辐射
油桐
分布
tung oil tree plantation
solar radiation
total radiation direct radiation
scattering radiation
