云南橡胶林冠面温度的初步研究

Abstract

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 (T_c) of rubber forest and their deviation (△T=T_c-T_a) from air temperature (T_a) 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 T_c than for T_a This difference reached 9-11℃ in the afternoon with strong insolation and dry weather. Influences of other environmental factors on T_c or △T were also discussed in detail.It was indicated that a higher T_c was advantageous to the safe overwintering for rubber trees in this region.

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

Youxin Ma,Keying Zhang,Yuhong Liu. A PRELIMINARY STUDY ON CANOPY SURFACE TEMPERATURE OF RUBBER FOREST IN YUNNAN[J]. Scientia Silvae Sinicae, 1996, 32(3): 193-198.

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

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