On Optimization of"Production-Living-Ecology Spaces"of Rural Settlements in Mountainous Areas Based on"Source-Sink"Theory:A Case Study of Jingxing County
According to the distribution characteristics of both rural settlements and the"production-living-ecology spaces"in counties of Taihang Mountainous areas,this paper,based on the"source-sink"theory and MCR model,from the perspective of ecological source area expansion and production source area expansion,constructed the index system for resistance surface in terms of the function of"production-living-ecology spaces",and calculated the minimum cumulative resistance surface difference,so as to achieve the division of"production-living-ecology spaces"and the classification and optimization of rural settlements at the county level.The results showed that:(1)The minimum cumulative resistance model based on the"source-sink"theory was compatible and feasible in the construction of the"production-living-ecology spaces"pattern in mountainous areas and the classification of rural settlements;(2)The study area was dominated by ecological protection areas and ecological optimization areas with the ecological space accounting for 59.5%.As a result,ecological functions took precedence.However,in the distribution of rural settlements,the production function,also the leading function,accounted for 62.7%.Therefore,rural renovation and construction should be done according to the dominant functions of rural settlements;(3)Rural renovation and construction should comprehensively consider the characteristics of living,production and ecological functions of rural settlements,and promote rural revitalization and ecological civilization construction in mountainous areas accordingly.
rural settlementsproduction-living-ecology spaces"source-sink"theoryMCR modelTaihang Mountainous areas
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