Next Article in Journal
Indian Summer Monsoon and El Niño Southern Oscillation in CMIP5 Models: A Few Areas of Agreement and Disagreement
Next Article in Special Issue
Stomatal and Non-Stomatal Turbulent Deposition Flux of Ozone to a Managed Peatland
Previous Article in Journal
Caribbean Air Chemistry and Dispersion Conditions
Previous Article in Special Issue
Evaluation of the Common Land Model (CoLM) from the Perspective of Water and Energy Budget Simulation: Towards Inclusion in CMIP6
Open AccessArticle

Variations of Energy Fluxes and Ecosystem Evapotranspiration in a Young Secondary Dry Dipterocarp Forest in Western Thailand

1
The Joint Graduate School of Energy and Environment (JGSEE) and Center of Excellence on Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
2
Earth System Science Research and Development Center (ESS), King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
3
Faculty of Environmental Culture and Ecotourism, Srinakharinwirot University, Bangkok 10110, Thailand
*
Author to whom correspondence should be addressed.
Current address: School of Energy and Environment, University of Phayao, Phayao 56000, Thailand.
Atmosphere 2017, 8(8), 152; https://doi.org/10.3390/atmos8080152
Received: 27 June 2017 / Revised: 12 August 2017 / Accepted: 14 August 2017 / Published: 17 August 2017
Deforestation, followed by abandonment and forest regeneration, has become one of the dominant types of land cover changes in the tropics. This study applied the eddy covariance (EC) technique to quantify the energy budget and evapotranspiration in a regenerated secondary dry dipterocarp forest in Western Thailand. The mean annual net radiation was 126.69, 129.61, and 125.65 W m−2 day−1 in 2009, 2010, and 2011, respectively. On average, fluxes of this energy were disaggregated into latent heat (61%), sensible heat (27%), and soil heat flux (1%). While the number of energy exchanges was not significantly different between these years, there were distinct seasonal patterns within a year. In the wet season, more than 79% of energy fluxes were in the form of latent heat, while during the dry season, this was in the form of sensible heat. The energy closure in this forest ecosystem was 86% and 85% in 2010 and 2011, respectively, and varied between 84–87% in the dry season and 83–84% in the wet season. The seasonality of these energy fluxes and energy closure can be explained by rainfall, soil moisture, and water vapor deficit. The rates of evapotranspiration also significantly varied between the wet (average 6.40 mm day−1) and dry seasons (3.26 mm day−1). View Full-Text
Keywords: energy fluxes; ecosystem evapotranspiration; young secondary dry dipterocarp forest energy fluxes; ecosystem evapotranspiration; young secondary dry dipterocarp forest
Show Figures

Figure 1

MDPI and ACS Style

Sanwangsri, M.; Hanpattanakit, P.; Chidthaisong, A. Variations of Energy Fluxes and Ecosystem Evapotranspiration in a Young Secondary Dry Dipterocarp Forest in Western Thailand. Atmosphere 2017, 8, 152.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop