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Canopy temperature variability in a tropical rainforest, subtropical evergreen forest, and savanna forest in Southwest China
Song, Qing-Hai; Zhang, Yi-Ping; Sha, Li-Qing; et al
2017
Source PublicationIFOREST-BIOGEOSCIENCES AND FORESTRY
Volume10Issue:xPages:611-617
AbstractCanopy temperature (Tc) measurements with infrared thermometry have been widely used to assess plant water status. Here, we evaluated Tc and its controlling factors in a primary tropical rainforest (TRF), subtropical evergreen broad-leaved forest (STF) and valley savanna forest (SAF) in southwestern China. We found differences between Tc and air temperature (Ta) of as much as 2.2 degrees C between the dry and wet seasons in the TRF. However, the canopy-to-air temperature difference (Tc-Ta) was only 0.3 degrees C between the dry and wet seasons in the STF. Solar radiation (SR) was the dominant factor in Tc-Ta variations during the dry and wet seasons at the three sites. The increased heating in the canopy leaves was likely the result of low stomatal conductance leading to low transpiration cooling. Changes in Tc-Ta in the TRF were highly sensitive to the degree of stomatal closure. The change in Tc-Ta was controlled by the climate, but inherent plant traits, such as stomatal conductance, also played an important controlling role.
KeywordCanopy Temperature Drought Stress Microclimate Transpiration Leaf Energy Balance
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10500
Collection2012年后新成立研究组
森林生态研究组
全球变化研究组
Recommended Citation
GB/T 7714
Song, Qing-Hai,Zhang, Yi-Ping,Sha, Li-Qing,et al. Canopy temperature variability in a tropical rainforest, subtropical evergreen forest, and savanna forest in Southwest China[J]. IFOREST-BIOGEOSCIENCES AND FORESTRY,2017,10(x):611-617.
APA Song, Qing-Hai,Zhang, Yi-Ping,Sha, Li-Qing,&et al.(2017).Canopy temperature variability in a tropical rainforest, subtropical evergreen forest, and savanna forest in Southwest China.IFOREST-BIOGEOSCIENCES AND FORESTRY,10(x),611-617.
MLA Song, Qing-Hai,et al."Canopy temperature variability in a tropical rainforest, subtropical evergreen forest, and savanna forest in Southwest China".IFOREST-BIOGEOSCIENCES AND FORESTRY 10.x(2017):611-617.
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