A Research To Optimize The Agriculture And Husbandry Structure In Da Qing

Agriculture has a very important position in a country' s economicdevelopment, and theadjustment of agricultural structure plays a vital role in the development of agriculture. Since theReforming and Opening, agricultural structure of the Inner Da Qing agricultural area, atsomeextant, has changed previous unitary and low- efficient structural formulas as the continuousdeep-going economic system reform and improvement of the city and village residents' incomelevel. The structural proportion of all departments in agriculture has rationalized, but comparedwith the high speed of market development, the adjustment of the agricultural structure is stillrather slow. Both in working thought and typical measure, the agricultural adjustment of the InnerDa Qing agricultural area has existed many problems: misunderstanding in policy; unreasonablestructure of agricultural industry; narrowness of improving farmers' income; similar structure ofthe agricultural area, single running pattern; low quality of agriculture and farmers; serious wasteof the crops, the weakness of the governmental microscopic guidance; lack of actual adjustment ofrelation between industry and agriculture, city and village. Therefor, adjustment of agriculturestructure is coming in seeking new approach for futurity agriculture.It has set up agricultural structure and the system of models optimized, moreover carried onstability analysis, Particle Swarm Optimization algorithm and quantitative appraisal of sustainableagriculture study to this model. Particularly, it is launched from several following respects:1.This text has summarized and analysed the present agricultural state of development of ourcountry foreign country, it has expounded the meaning in which the thesis studies, Optimize themethod and multi-goals algorithms after summarizing various kinds of industrial structure, havenarrated the research dynamic status of Particle Swarm Optimization algorithm and sustainableappraisal method, it has described the thinking of whole writing of the thesis in detail.2.It has set up multi-goal optimized models of economic,ecology and social benefit inmathematical programming. Has set up national resources, cultivated area, ecology restraintconditions including social demand, and the agriculture structure optimized model's system facingDa Qing's practice situation. Some fixed parameters in model was set up by investigate;the otherchanged parameter has predicted by combined forecasting, Logistic forecasting, etc. Has proved thestability of the model system from mathematics, at last has set up the optimized models of thesustainable agricultural structure of Da Qing taking 2015 as report period. 3.Researched the basic principle and technology of realizing of the Particle SwarmOptimization algorithms,for traditional PSO gets into part best easily, so the paper get up decreasingweight.The thesis proposed an asynchronous pattern from analyzing on the biologic character ofparticle swarm optimization,thinking abundant particle swarm of optimization sharing betweenparticle swarm,it has set up moving model about PSO.It has proposed new rules for the competitionand selection,it has improved fitness function based on competition and selection.Combing thecharacters of PSO,this paper has designed vector evaluated PSO.Thus,it has proposed a newevolutionary algorithm through PSO to solve constrained optimization problems.The search for thepareto optimal set of multi-objective optimization problems is performed.Numerical simulationsshow the effectiveness of the proposed algorithm.4.On the basis of models and solving, it need to appraise to the result that is received,guarantee it to reach the goal booked, therefore structure the comprehensive evaluation indexsystem of agricultural sustainable development,build the sustainable development index systemwith the analytic hierarchy process from three aspects:economic,social,resource and environmentalecological and gave a synthetically judgement, gave level index,development index andcoordination index,and design synthesis appraisal model to ability of agricultural sustainabledevelopment in recent years and report period.The model system built of this paper has certain piratical meaning, PSO has certain innovationfor the model is asked and solved.