Study Of Corn Suitability Assessment Method At Chifeng City In Inner Mongolia

The new socialist rural construction for agricultural production structure adjustment putforward specific requirements. Meteorological department of agricultural production structureadjustment can provide the most content of science and technology services. Thegovernments at various levels can reasonable development and make full use of the localagricultural climate resource is accelerating agricultural production structure adjustment ofthe key. This is also cultivation high added value of agriculture and forestry, fruit andmedicinal materials and other products in the key. This paper, by using the geographicinformation system powerful data collection and processing functions，First established inChifeng basic database. Database includes both basic geographic information data, includingbasic meteorological observation data, as well as the social economy environment ofstatistical information. Comprehensive efficient database construction is Chifeng city cornsuitability assessment foundation.According to the1980to2008years of record corn growth period Chifeng city, thispaper divided each period of corn start and end time. Based on the method of decompositionof production data, this paper analyzes the change trend of the corn single output. This paperused the method of moving average calculation of corn production trend. And then calculatethe area of the meteorological production. Cut the average of the rates over the selection,variation coefficient as a reaction to the nature of the corn itself suitability assessment index.Not only for the calendar year the average production situation, and analyzes the fluctuationsof the production.In different growth stages of ecological conditions climate corn demand, this articlesummary the corn growth phase of the light, temperature, water optimal conditions ofresearch results. The evaluation index from temperature and precipitation was chosen by thetwo aspects. Heading, filling stage, la ripe period is corn lack of rain highest sensitivityperiod. Rainfall fluctuation directly influences the formation of the corn of dry matter of grain.Therefore, this paper used sensitive period of rainfall as suitability assessment index.Corn demand during the whole growth came to a certain amount of temperature. Thetemperature of the filling stage directly affect whether blossom. Therefore, to stabilizethrough10°C accumulative temperature, filling stage average temperature as temperature evaluation index.By using the geographic information system of space analysis function, according to theimportance, in this paper, the evaluation index to the classification, effectively eliminate thedimensional effect, more intuitive reflect suitable degree. Then respectively by means ofassignment, inverse distance weight interpolation, trend surface fitting interpolation methodevery key element to the space distribution calculation. Using the principle of analytichierarchy process, Chifeng area corn suitability assessment index system is divided into3andweights analysis. This paper applied conditions grid stack analysis method, according to thecorresponding, weight coefficient for the operations of weighted summation. By Usingnatural breakpoint classification method, this paper score above the2.43region forappropriate corn growing areas, below the2.07for not suitable corn in the region.The suitability of different regions are reviewed respectively. Suitable for growing areasmainly distributed in Balinzuo, Wengniute, Kalaqin, Ningcheng. less Suitable for growingareas distributed mainly in Alukeerqin, Bslinyou, Linxi, Keshiketeng and Aohan. Not suitablefor growing corn area is mainly distributed in the Alukeerqin, Keshiketeng and Songshan.Therefore, Ningcheng karahan ooze is mainly used for the region and growing corn inthe region. Planting early to rare, medium and moderate the corn. Make full use of theadvantages of local grow corn; realize high quality of high yield corn goal. At the same timethe districts to use corn advantages in resources, on maize comprehensive processing projects,and further promote local economic development. Wengniute southwest and Aohan is suitablefor growing corn another area. Rainfall and cooperated with the irrigation water. Localmaking full use of local advantages and climate conditions of land use advantage, keep cornfurther stability and development. In not suitable for growing corn drought areas, chooserelated drought resistance of corn, or according to the actual situation of high yield of droughtin planting other economic crops. In the northern areas, suitable for growing in early in theknow and practice of corn, make full use of limited arable land resources, and climate,coordinate resources, the full implementation of the size of the high yield cultivation moderidges planting. In the western mountainous area comprehensive development of agriculture,animal husbandry, forestry, not suitable for single grows corn.