Abstract:

 The scientific planning of ecological space is the basis for territorial space use control. Taking Yongchun County of Fujian Province as an example, we constructed the importance index of ecosystem services by selecting biodiversity protection, water conservation, and soil conservation, and by integrating forestry ecological engineering, designated prohibited development zone, and natural ecological space in cities and towns. We further synthesized the importance index with ecological sensitivity index to construct the method for the planning of county-level natural ecological space. The results showed that the territorial space of Yongchun County could be divided into three types, out of which the prohibited development zone and the restricted development zone were planned as ecological space of Yongchun County. The ecological space was 679.15 km^2 in area, accounting for 46.65% of the total area. The prohibited development zone covered an area of 258.42 km², accounting for 17.75% of the total area, while the restricted development area covered an area of 420.73 km², accounting for 28.90% of the total area. Planning can be reasonably implemented at the county level if the evaluation of forestry ecological engineering, designated prohibited development zone, and important ecological land in cities and towns were included in the importance evaluation of ecological services. More realistic references would be provided for the demarcation and supervision of ecological protection in the later stage by effectively coordinating with relevant planning and avoiding more broken patches.

Key words: importance of ecosystem services, ecological sensitivity, ecological space.