Abstract: Taking Ganzhou City, Jiangxi Province as the study area, the years 2000, 2010 and 2020 were selected as the study time points to identify the final ecological security pattern of Ganzhou City on the basis of ecosystem service value evaluation and circuit theory. The results showed that the ecological core area of Ganzhou City, totaling 7 780.32 km², mainly consisted of stable ecological source lands, forest lands with high ecosystem service values, and national forest parks and nature reserves; the ecological buffer area, totaling 5 993.92 km², was mainly a buffer zone constructed to protect ecological source lands, which had a certain protective effect on ecological source lands; the soil and water conservation zone, totaling 499.90 km², mainly consisted of rivers and reservoirs in the study area; the key restoration area, totaling 1 178.33 km², mainly consisted of ecological pinch points and ecological barrier areas; and the urban construction area, totaling 2 873.40 km², mainly consisted of areas with high values of ecological resistance such as urban land and rural settlements. In addition, corresponding ecological restoration proposals were made for ecologically fragile areas.

Key words: ecological security pattern, value of ecosystem services, circuit theory, Ganzhou City