Abstract
To speed the succession of landslide by artificial restoration, the purpose of this project is the selection of restoration tree species and effectiveness monitoring in landslide area. Before artificial restoration, we first find out the succession stage, dominant trees and seedling composition, whether the seed source is enough, and whether the microenvironment is suitable for seedling establishment, etc., then we can evaluate suitable restoration species. We also monitor the growth condition and restorative potential of the transplanted seedlings, to offer the basis for the artificial restoration methods and tree species selection in landslide areas. Moreover, this study will introduce large and fast-growing climbing plants into landslide areas which can cover the slope quickly.The invasion of Leucaena leucocephala, an exotic species, has caused an ecological crisis in the natural environment in Taiwan. Nowadays, the mechanical removal or cutting of L. leucocephala and reforestation immediately are the most effective methods for the prevention and control of their population. Afforestation still needs to take 6-9 years to establish a closed canopy. Therefore, this project aims to use native species for afforestation. Utilizing the characteristics of the growth rapidly of the native species can prompt the closure of the canopy rapidly. Planting native species not only can save the cost of afforestation, but also accelerate the prevention and control of L. leucocephala.L. leucocephala has also spread widely and seriously threatened the natural ecosystem in Kenting National Park. The major tasks of this project are: 1. Survival and growth survey of restoration seedlings planted in 2007; 2. evaluating the performance of direct seeding. The growth information of direct seeding plants will be an essential reference for future restoration plan in Hengchun peninsula. We will assist the community to reduce the abandoned land becoming the source of Leucaenathe spread.