Abstract:As a typical ecological transition zone between dry valley and subalpine forest in the upper reaches of Minjiang River, the ecotone between Minjiang dry valley and montane forest (EDM) is an important residential area for Zang and Qiang minorities as well as plays an important role in inhibiting the dry valley expansion and in extending the ecological function of the subalpine forest. Nevertheless, the structure and function of the EDM ecosystem is greatly vulnerable to damage from human activity and natural disaster such as earthquake, landslide, collapse and long-term drought, despite of its important status in keeping regional stability and local resident development. Due to the inherent geologic instability and sensitivity as well as fragile property, the EDM was one of the most serious areas damaged by “5.12” Wenchuan Earthquake, as the consequence of which the earthquake-damaged ecosystem restoration or reconstruction, and the hometown rebuilding are the current crucial tasks after the earthquake. Judged by the characteristics of earthquake-damaged ecosystem in combination with the fragile characteristics and the ecological importance of the EDM, therefore, it is suggested that the urgent and key scientific & technical issues include the rapid assessment on the characteristics of earthquake-destroyed ecosystem, the plan on detailed ecological restoration or reconstruction, the key techniques of beneficial “win-win” construction in both ecological restoration and economic development, the conservation of the survival vegetation in the earthquake, the reconstruction on the earthquake-damaged vegetation, the production restoration of earthquake-damaged farmland, comprehensive treatment on unstable slope, the improvement of low-benefit fuelwood forest, and the construction of scenic forest around the human settlement. Moreover, future researches include the monitoring and evaluation on the restoration process of the earthquake-damaged ecosystem, the fragile mechanism and ecological process of the EDM ecosystem, and the responsive and adaptive mechanisms of ecosystems to the changed environment after earthquake, should be strengthened to sustainable development of local society and regional ecology.