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林业科学 ›› 1996, Vol. 32 ›› Issue (3): 193-198.

• 论文及研究报告 •    下一篇

云南橡胶林冠面温度的初步研究

马友鑫,张克映,刘玉洪   

  1. 中国科学院昆明生态研究所, 昆明 650223
  • 收稿日期:1994-11-14 出版日期:1996-05-25 发布日期:1996-05-25

A PRELIMINARY STUDY ON CANOPY SURFACE TEMPERATURE OF RUBBER FOREST IN YUNNAN

Youxin Ma,Keying Zhang,Yuhong Liu   

  1. Kunming Institute of Ecology, Academia Sinica Kunming 650223
  • Received:1994-11-14 Online:1996-05-25 Published:1996-05-25

摘要:

根据红外测温法和小气候观测, 研究了云南西南季风区(景洪、瑞丽)橡胶林冠面温度(Tc)基本特征及其与林冠上方1.5m处气温(Ta)的差异(△T=Tc-Ta)。结果表明:在09—18时橡胶林冠具有加热作用, TcTa平均高5—6℃; 强光、干燥的午后(14—15时)则达9—11℃; 在最低温度出现时, TcTa差异不显著。还详细讨论了其它环境因子对Tc或△T的影响, 指出本区较高Tc有利于橡胶树安全越冬。

关键词: 橡胶林, 冠面温度, 环境因子

Abstract:

Field studies were conducted respectively in Jinghong and Ruili of the southwest monsoon region of Yunnan Province to investigate the principal characteristics of canopy surface temperature (Tc) of rubber forest and their deviation (△T=Tc-Ta) from air temperature (Ta) at 1. 5m higher above the canopy surface by means of an infrared thermometer and microclimatic observations in January of 1991 and 1992. The results showed that the rubber forest canopy appeared a heating effect during the 9:00-18: 00h period with an average of 5-6℃ higher for Tc than for Ta This difference reached 9-11℃ in the afternoon with strong insolation and dry weather. Influences of other environmental factors on Tc or △T were also discussed in detail.It was indicated that a higher Tc was advantageous to the safe overwintering for rubber trees in this region.

Key words: Rubber forest, Canopy surface temperature, Environmental factors