Study On Arable Land Production Capacity And Application In Anhui Province

Construction of agricultural land classification results of a national system of agricultural land within the relative difference in the quality of the stairs, but the specific steps for each level of the absolute value has yet to be studied further. Farm property is agricultural land to the accounting classification results of deepening and use of agricultural land through the theoretical capacity, can be realized and actual production capacity of accounting, quantitative study on the overall productivity of agricultural land and the potential distribution of agricultural land evaluation of the quality of geographical differences.Firstly study on support theory: theory of arable land classification, geographic diversity and Land theory of diminishing returns and land suitability theory and so on.Secondly analysis the technical methods: The sample, surrogate, comparative law, qualitative and quantitative analysis, the Delphi method and 3s technology, through a survey of arable land productivity, capacity can be realized, the use of mathematical statistics, The establishment of natural quality index with the theoretical capacity and utilization index and capacity can be realized between the function, comparative analysis of arable land use intensity and production potential.Then include the land production capacity evaluation process: the type of crops and Building Members present investigation and collection of the province counties (cities) of arable land for the theoretical point land productivity, capacity can be realized and actual capacity to the county (city) Units, a standard deviation of the crops that yield anomalies and omissions can sample data points; collect and collate the results of arable land classification, the classification results map, use maps and village limits of correction to the provincial boundary map in the sub - Plans to add modules in the sample survey, sampling points export natural quality index, the utilization index and map spot area; counties (cities) for the classification of other units that remove anomalies and samples, will be converted into standard crop yield grain production, Building Members present category of adjustment with a given unit and back to grade map; samples derived attribute data points, or samples, natural quality index, such as index and the use of space, and a sample of the corresponding theoretical capacity, build capacity can be realized Model, and calculate all counties (cities) of arable land use strength and potential.Lastly inlustate the application study: construction of the two target areas in Anhui Province five of agricultural land, can achieve production capacity accounting model, the aggregate draw in Anhui Province and around the city of agricultural land and to achieve yield, total output and the use of strength and potential of the results found : theory and the Anhui Provincial agricultural land can achieve enormous potential for production, demand for grain in the maintenance of the province at the same time, grain output should increase the intensity, and returning farmland to forests, grasslands and other ecological sites can be further expanded, but the actual production capacity by many factors, the actual production of limited research results also showed that the protection of agricultural land in production capacity must maintain a certain amount of agricultural land area based on the realization of agricultural land, and so does not reduce the other. Application of the results: arable property to the accounting results into various aspects of land management, described in the land improvement evaluation system, regional protection of cultivated land compensation mechanism, land-use planning and added the quantity and quality of arable land rating conversion in areas such as the application. Evaluation system for land consolidation, construction of the key areas identified land consolidation and land consolidation of land before and after differences in the quality of the system approach, as measured evaluation of the effect of land consolidation. Regional protection of cultivated land compensation mechanism to quantify the capacity basis, to determine the size and amount of compensation in the land-use planning to construct a plan within the region can not reduce farm property for the purpose of evaluation system; added the number of arable land by grading the quality of translation, can be converted to producing quality instead of quantity conversion, converted to provide convenient way.