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热带季节雨林林窗不同热力作用面的热力特征
引用本文:张一平,窦军霞,马友鑫,刘玉洪,王进欣.热带季节雨林林窗不同热力作用面的热力特征[J].中南林业科技大学学报,2001,21(4):68-72.
作者姓名:张一平  窦军霞  马友鑫  刘玉洪  王进欣
作者单位:张一平(中国科学院西双版纳热带植物园,中国云南昆明 650223)       窦军霞(中国科学院西双版纳热带植物园,中国云南昆明 650223)       马友鑫(中国科学院西双版纳热带植物园,中国云南昆明 650223)       刘玉洪(中国科学院西双版纳热带植物园,中国云南昆明 650223)       王进欣(中国科学院西双版纳热带植物园,中国云南昆明 650223)
基金项目:国家自然科学基金项目(39770141)、云南省自然科学基金项目(98C098M)、中国科学院"九五”重大项目(KZ951-A1-104-01)和中国科学院院长基金部分研究结果.
摘    要:利用热带季节雨林林窗区域小气候要素的观测资料,探讨了昼间林窗区域不同热力作用面的热力特征.在西双版纳雾凉季,热带季节雨林与次生林相似,其林窗边缘壁面具有不可忽视的热力作用,是林窗区域除林冠面、林窗地表面和林内地表面之外的新的热力作用面.由于林窗边缘树木高度的影响,其东侧、北侧林缘壁面热力效应最大区域出现位置高于次生林林窗,而热力效应强度小于次生林林窗.其结果可为进一步研究林窗小气候形成机制提供研究基础,为研究林窗更新及生物多样性影响提供科学参考.

关 键 词:热带季节雨林    林窗    林窗边缘林墙壁面    热力作用      西双版纳
文章编号:1000-2502(2001)04-0068-05
修稿时间:2000年12月19

Thermal Characteristics of Different Thermal Active Surfaces of the Canopy Gap in Tropical Seasonal Rain Forests of Xishuangbanna
ZHANG Yiping,DOU Junxia,Ma Youxin,LIU Yuhong,WANG Jinxin.Thermal Characteristics of Different Thermal Active Surfaces of the Canopy Gap in Tropical Seasonal Rain Forests of Xishuangbanna[J].Journal of Central South Forestry University,2001,21(4):68-72.
Authors:ZHANG Yiping  DOU Junxia  Ma Youxin  LIU Yuhong  WANG Jinxin
Abstract:Based on the measurement of microclimatic elements of the canopy gap in tropical seasonal rain forests in fog-cool season in Xishuangbanna, the daytime thermal characteristics of different thermal active surfaces in the canopy gap were analyzed and discussed. The findings show that it is not only in the secondary forest but also in tropical seasonal rain forests that the vertical thermal active surface becomes a new thermal active surface besides forest canopy surface and soil surfaces of the canopy gap and the forest, and its thermal effect cannot be neglected. However, influenced by the height of trees that form the edge of gap, the position with maximum thermal effect on the vertical thermal active surface at the east and north edge of gap in tropical seasonal rain forests is higher than that in the secondary forest. The results would supply a research basis for understanding the microclimatic formation of canopy gap and for studying forest succession and the effect of forest biodiversity.
Keywords:tropical seasonal rain forests  canopy gap: vertical thermal active surface
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