Simulation of Optimization Model of Cultivated Land Spatial Layout under Influence of Spatiotemporal Data
Due to the fact that the spatial layout of cultivated land not only needs to consider land quality and pro-duction potential,but also needs to comprehensively consider factors such as environmental protection and hydrological characteristics,it increases the complexity of spatial layout planning.As a result,this paper proposed a method for planning the spatial layout of cultivated land under the influence of randomicity of spatiotemporal data.Firstly,we constructed a layout planning model by using raster spatial data and linear weighting method.Then,we cal-culated the values of various indicators of cultivated land through the autocorrelation of cultivated land quality,and de-termined the weight of the evaluation system by combining the optimal combination weighting approach.Next,we used incremental autocorrelation analysis to normalize the cultivated land indicators.Based on the matter element matrix,we calculated the classical domain and segment domain of the geological environment of cultivated land,thus obtaining the comprehensive correlation degree of the geological environment evaluation.Finally,we completed the spatial layout planning of cultivated land.The experimental results show that the proposed method has stronger identification ability for the randomness characteristics of spatiotemporal data,as well as 94%classification accuracy of cultivated land.In addition,the effect of spatial layout planning is good,and the spatial intensive nature is high.The NNI index of smal-ler cultivated land area is as high as 0.634.
Spatiotemporal data modelLinear weighting methodAutocorrelation analysisMatter element matrixComprehensive correlation degree
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