Abstract:

In this study,high-resolution images were obtained based on UAV technology,and landscape types were extracted through artificial visual interpretation.Then,landscape patterns and the mosaic structure of the natural-artificial ecosystem were analyzed.The results showed that timber forests,tea plantations,residential areas and shrub forests were the dominant landscape units,followed by sparse woods,roads,industrial land,farmland and ditches.The mosaic structure and stability of different landscape units varied significantly.According to stability index,timber forests were the most stable landscape units in the study area,followed by sparse woods,reservoirs and ponds,fruit orchards,farmland,bare land,industrial land and other artificial landscapes.The stability of shrub forest,grassland,tea plantation,residential areas and roads were at a moderate level,whereas ditches,green land and bare rocks were relatively unstable.The results may provide scientific basis for the protection and management of nature reserves.

Key words: high resolution image, nature reserve, complex ecosystem, landscape pattern, stability