节水灌溉方式优选算法设计与实现OA

Based on the investigation and analysis of historical data, through calculating the annual income, expenditure, annual net benefit and investment recovery period of different water-saving irrigation methods for various water sources, mean of annual net benefit of different were obtained, and economic suitability of water-saving irrigation methods were evaluated and analyzed; with irrigation uniformity as technology suitability evaluating index, combined with three kinds of water source (surface water, shallow well water, deep well water), three kinds of crop (grain crop, economic crop, forest fruit), three kinds of landform and physiognomy( 1/1 000 -3 000, 1/100 - 1 000, 1/10 - 100) , five kinds of soil texture (sandy, sandy loam, loam, clay loamy, viscosin ) , the technology suitability of water - saving irrigation methods were evaluated and analyzed; according to the consolidation and summarizing of investigation data, the evaluation results from people were obtained, and the social suitability were evaluated; the fuzzy comprehensive evaluation method was adopted to complete adaptive evaluation of water-saving irrigation methods. Finally, with typical irrigation area as an example, the constructed comprehensive evaluation index, decision-making set and established evaluating mathematical model were verified and the optimization was completed.