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Diurnally-micrometeorological responses to different vegetation coverin a highly-deforested tropical area in Nan, Northern Thailand,during the early Asian summer monsoon |
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รหัสดีโอไอ | |
Creator | Arika Bridhikitti |
Title | Diurnally-micrometeorological responses to different vegetation coverin a highly-deforested tropical area in Nan, Northern Thailand,during the early Asian summer monsoon |
Publisher | Research and Development Office, Prince of Songkla University |
Publication Year | 2560 |
Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
Journal Vol. | 39 |
Journal No. | 5 |
Page no. | 659 |
Keyword | tropical climate,deforestation,cropland expansion,land cover,meteorology |
ISSN | 0125-3395 |
Abstract | This work aims to investigate diurnal-micrometeorological patterns for different vegetation covers; a hill evergreenforest, an integrated cropland, and a monoculture cropland in Nan, Northern Thailand. Biogeophysical effects of deforestationand cropland expansion on the local meteorological patterns are discussed. Results obtained from the analysis of satelliteimagery suggest significant forest conversions from year 2001 to 2011/12. Field observations were taken during the earlyAsian summer monsoon season. The results indicate that the forest exhibited the highest day-night temperature difference,in which latent heat flux and surface roughness, in connection with wind speed, play important roles. Different cultivationpractices (monoculture vs. integrated) clearly affected daytime sensible heat flux, resulting in colder nights at the monoculturecropland. Based on the findings in this study, an overall warming trend, especially at night, and higher short-term rainfall arelikely to be associated with deforestation and cropland expansions. |