The Method of Large-scale Ecological Protection Red Line Calibration Layout
The investigation and definition of ecological protection redlines is another important task after the implementation of ecological protection redlines,and is the basis and premise for normalized supervision. At present,ecological protection redline survey and definition is in the pilot stage,there is no specific guidance at the national level,provinces and cities,as the main body responsible for ecological protection redline survey and definition work,can only be carried out in combination with local conditions on the ground,and lack of systematic and standard. The calibration layout is the key link of surveying and defining the target,which mainly solves the problems of determining the num-ber of boundary posts and signs in the ecological protection redline area and selecting the location of the proposed burial. In this paper,a large-scale ecological protection redline calibration layout method is proposed,which first divides the ecological protection redline area into grid u-nits according to a certain scale,screens out the grid units involving the boundary of ecological protection redlines,and then introduces charac-teristic factors such as administrative region,population,road traffic,and terrain category to construct a measurement model,further carries out the calculation of metric features,selects the grid elements according to the feature threshold,and uses the final selected grid units as the cali-bration layout scheme to guide the setting of the number of boundary piles and signs and the location of buried points. Taking Chongqing as an example,the large-scale ecological protection redline calibration layout application is carried out,which provides first-hand information for the survey and definition of ecological protection redlines in Chongqing,and verifies the scientific and practical nature of the proposed method in guiding provinces and cities to implement the ecological protection redline calibration layout.
ecological red lineland spatial planningdemarcation and calibrationlayout scheme
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