An Integrated Approach to Constructing Ecological Security Pattern in an Urbanization and Agricultural Intensification Area in Northeast China

Ecological security pattern (ESP) can bridge the paradox between ecological conservation and socioeconomic development. Although various methods have been applied to establish ESP successfully, improving its scientificity reliability for regional sustainability are still great challenges. Taking Harbin administrative region as study area, this paper integrated merits of function-oriented method (assessing importance services using InVEST model) structure-oriented (extracting connectivity landscapes based on MSPA improve identification sources more scientifically. Night light data were used modify natural resistance surface reveal real human disturbance ES loss during species migration flows. Then, was established by combining nodes after extracting grading corridors. The results showed that individual performed with a high spatial heterogeneity highly correlated land use patterns. extremely important slightly dominant level types in proportion declined greatly from 44.78% 1980 30.14% 2020. Core main landscape type 57.13% mainly distributed Lesser Khingan Mountains Zhangguangcai Mountains. More than 700 corridors extracted according MCR model selected gravity model, 86 obtained intersection points An “two zones, two barriers, one axis belt” proposed, relevant protection measures put out sustainable development area. findings indicated imposing could form stable secure frame social economic protection, avoiding irrational modes excessive dispersion landscapes. This provide valuable references planning formulation related policies strategies.