Study on Deterioration and Conservation of Sukhothai Historic Site, Thailand

1-通过在Sri Sawai寺设置计算机控制的测量系统来测量素可泰历史遗址的环境条件。还测量了Sri Chum寺主殿内部的微气候。利用这些测量数据，模拟分析了大殿内设置遮挡物对保护大殿内大佛的作用。并且，它揭示了在大殿上设置一个庇护所是有效的。2-使用两个旧佛像进行了实验研究。一个是一个中等大小的佛像旁边的主殿Sri Chum寺。另一尊是在萨寺的同类型佛像。两座雕像都被清洗干净了。然后，在萨西寺的雕像是用硅树脂溶液浸渍处理，而在Sri Chum寺的雕像没有处理，但用侧开式茅草屋顶覆盖。对这两座雕像的定期调查表明，这样的庇护所对保护雕像是有效的。3-在Sri Chum寺庙和Sa Si寺庙测试了一种新型杀菌剂，以消除藻类、地衣和苔藓。4-对素可泰历史遗址过去的保护工作进行了实地调查和文献调查。5-对其他类似遗址进行了比较研究，如大城府遗址，吴哥遗址（柬埔寨），My Son遗址（越南）等。

1- Environmental Conditions of Sukhothai historic site were measured by setting a computer controlled measuring system at Sri Sawai temple. Micro-climate of the inside of the main hall of Sri Chum temple was also measured. Using the data obtained by those measurements, simulation analysis was done on the effect of a shelter on the hall for preservation of Giant Buddha in the hall. And, it reveals that setting a shelter on the main hall is effective.2-An experimental study using two old Buddha statues was conducted. One is a middle size Buddha statue next to the main hall of Sri Chum temple. The other one is the same type Buddha statue in Sa Si temple. Both of two statues were cleaned. Then, the statue at Sa Si temple was treated by impregnation with silicone resin solution, while the statue at Sri Chum temple was not treated but covered with a side-open type thatch roof. Periodical investigation of those two statues reveals that such a shelter is effective to preserve the statue.3-A new type biocide to eliminate algae, lichens and mosses was tested at Sri Chum temple and Sa Si temple. And, it reveals that the new type biocide is very effective.4-The past conservation works done at Sukhothai historic site were investigated in situ and in documents.5- Comparative studies were done at other similar sites such as Ayutthaya site, Angkor site (Cambodia), My Son site (Viet Nam) etc.,.