Waragai Tetsuya
Department of Geography, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajyosui Setagaya-ku, Tokyo, 156-8550, Japan.
Sci Rep. 2025 Jul 1;15(1):20718. doi: 10.1038/s41598-025-07695-y.
The Angkor monuments in Cambodia were built between the 9th and 14th centuries CE and were subsequently buried in the jungle. Conservation and restoration projects that began in the early 20th century cut down the surrounding trees, which created a high-temperature environment that may affect the weathering of the stone materials. The temples of Angkor Wat, Banteay Kdei, and Ta Prohm were selected for study, and the measured temperature distributions were compared to evaluate the effects of the tree canopy cover on the thermal environment. Land cover analysis was performed by using remote sensing imagery. Angkor Wat had the least tree canopy cover among the temples. It also had a much higher surface temperature than the other temples in both the dry and rainy seasons. The ambient temperature measurements indicated that the temples were 1-5 °C warmer at night than the surrounding forest. The tree canopy cover was found to have a strong influence on the thermal environment of the temples, whose stone materials have a higher volumetric heat capacity than trees. The increased temperature and humid tropical environment are likely to accelerate the physical weathering of the stone.
柬埔寨的吴哥古迹建于公元9世纪至14世纪之间，随后被丛林掩埋。20世纪初开始的保护和修复项目砍伐了周围的树木，形成了一个高温环境，这可能会影响石材的风化。选择吴哥窟、斑黛喀蒂寺和塔布隆寺进行研究，并比较测量的温度分布，以评估树冠覆盖对热环境的影响。利用遥感影像进行土地覆盖分析。吴哥窟在这些寺庙中树冠覆盖最少。在旱季和雨季，它的地表温度也比其他寺庙高得多。环境温度测量表明，这些寺庙夜间比周围森林高1至5摄氏度。研究发现，树冠覆盖对寺庙的热环境有很大影响，寺庙的石材比树木具有更高的体积热容量。温度升高和潮湿的热带环境可能会加速石材的物理风化。
