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西双版纳热带季节雨林林冠层温度与大气温度特征

杨振1,3;张一平1;于贵瑞2;赵双菊4;宋清海1;高举明1,3   

  1. 1中国科学院西双版纳热带植物园, 昆明 650223; 2中国科学院地理科学与资源环境研究所, 北京 100101;3中国科学院研究生院, 北京100039; 4云南省建筑材料科学研究设计院, 昆明 650221
  • 收稿日期:2008-08-25 修回日期:1900-01-01 出版日期:2009-05-10 发布日期:2009-05-10

Characteristics of canopy and air temperature in tropical seasonal rainforests in Xishuangbanna.

YANG Zhen1,3;ZHANG Yi-ping1;YU Gui-rui2;ZHAO Shuang-ju4;SONG Qing-hai1;GAO Ju-ming1,3   

  1. 1Xishuangbanna Tropical Botanic Garden, Chinese Academy of Sciences, Kunming 650223, China;2Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;3Graduate University of Chinese Academic Sciences, Beijing 100039, China;4Yunnan Building Materials Academy, Kunming 650221, China
  • Received:2008-08-25 Revised:1900-01-01 Online:2009-05-10 Published:2009-05-10

摘要: 根据2005年西双版纳热带季节雨林群落冠层植物表面温度以及林冠上、林冠下的气温资料,对热带季节雨林冠层温度和冠层气温及其之间的温度差异在不同季节的变化进行了分析。结果表明:热带季节雨林冠层温度除雾凉季夜间稍低于同层大气温度外,其他时间林冠温度皆高于同层大气温度,在雾凉季和干热季,热带季节雨林林冠上气温在大多数时刻高于林冠下气温;在中午前后林冠上气温低于林冠下气温。在平均温度较高的雨季,林冠上气温一直高于林冠下大气的温度;林冠上、林冠下气温之间的差异,显示西双版纳热带季节雨林林冠的生态效应对森林小气候的反馈作用;在雾凉季夜晚,热带季节雨林林冠温度与冠层气温与其他时间不同,雾凉季夜间低温是热带季节雨林能否存在的关键性限制因子。

关键词: 白背飞虱, 电子记录, 取食行为, 致害性, 水稻

Abstract: Based on the observation data in 2005, this paper analyzed the seasonal variations of the canopy temperature and the air temperature above and below the canopy in a tropical seasonal rainforest in Xishuangbanna of Southwest China. The results showed that at the same layers, the canopy temperature was higher than the air temperature except at nights of foggy-cool season. At most time of foggy-cool and dry-heat seasons, the air temperature above the canopy was higher than that below the canopy, while there was an opposite trend at noon time. In the rain season with higher mean air temperature, the air temperature above the canopy was all along higher than that below the canopy. The differences in the variations of the air temperature above and below the canopy presented the feedback effect of the seasonal tropical rainforest canopy to the microclimate in the forest. At the night time of foggy-cool season, the canopy temperature and air temperature differed with those at other time, suggesting that the low temperature at the nights of foggy-cool season was the key limiting factor for the existence of tropical seasonal rainforests in Xishuangbanna.

Key words: Sogatella furcifera, Electronic monitoring, Feeding behavior, Virulence, Rice