REMOTE SENSING MONITORING AND EVALUATION OF SPECIES DIVERSITY IN FOREST ECOSYSTEMS

Biodiversity is the foundation on which humans depend. However, in the past century, due to population expansion and excessive consumption of resources, unprecedented damage has been caused to global biodiversity. And the loss of biodiversity is not just a regional or national event, it is a global event. Relative to limited time, capital and manpower input, people urgently need to quickly and effectively assess biodiversity from different scales, identify hot spots for conservation, and provide basis for biodiversity conservation and decision-making. Therefore, this paper mainly uses the remote sensing and GIS technology to establish an ecosystem classification system from the ecosystem level, and analyze the characteristics of ecosystems, carry out regional ecosystem diversity assessment research, and take the forest remote sensing image of Hunchun City as an example to study the change characteristics of urban forest species diversity in 2007 similar to 2018. At the same time, the corresponding conservation measures of species diversity were actively explored.