Diversity of Ground Flora in Restoration Area of The Siam Cement (Lampang) Co., Ltd Limestone Quarry

Ground flora communities in framework species method restoration area of Siam cement (Lampang) Co. Ltd. limestone quarries were studied. adding top soil with the value of 2.81, 2.50 and 1.99, respectively.The ground flora community can indicate the integrity of the area as well as trees or seedling. The objectives of this study were to compare species diversity of ground flora between natural forest and restoration areas with different site preparation methods (adding top soil and rock explosion) and to monitor the progress of restoration process. In each study site, five circular plots with 5 meters radius were randomly located. Ground flora species and percentage cover were determined in December 2018 and February 2019. The physical factors and forest profile were recorded. The total number of ground flora species found in this study was in 52 species, 27 families. The highest diversity was recorded in natural forest followed by restoration area with rock explosion and Desho grass Purple Orchid tree. Dominant species in restoration site with rock explosion was (Pennisetum pedicellatum) which normally found in a pioneer stage of succession. ( Buahinia purpurea) and Siam Weed (Chromolaena odorata) were the dominant species of restoration area with adding top soil. In natural forest, most of the ground flora found were seedling of tree such as Bandicoot berry (Leea indica). It can indicate that preparation site with adding top soil method can promote ecosystem recovery better than rock explosion method.