Provincial Bordering Investigation Of Farmland Classification In National Gathering

The Tenth Five-Year Plan of Ministry of Land and Resources had been clearly stipulates that the work of national farmland classification and evaluation should be carried out and the system of land rank, level and price should be established. Farmland classification is a fundamental and public welfare task which has been played a significant role in promoting the reform of land resource management to ensure comprehensive, coordinated and sustained development. The work of national farmland classification and building database has been mainly completed summary results of data, files and maps from provincial farmland classification (including autonomous regions, and municipalities directly), and database construction to establish the national farmland rank system which can be applied to the whole country.This thesis studies the six provinces: Shanxi, Henan, Anhui, Hubei, Hunan and Jiangxi, and analyze the provincial farmland classification results with regression analysis. The provincial farmland classification results of these areas have been carried out national summary by using rank. The basic ideal for the task is that by analysis of provincial farmland classification results, on the basis of affirming reasonable and scientific quality of these productions, analyze the incomparable reason of provincial farmland classification fruits and discover that the incomparable reasons are quite different. The index of standard grain output and using rank of research samples of six provinces have been analyzed by use of correlational analysis method and regression analysis. The high dependence occurs between the index of using rank and actual standard grain output, but each province is different in regression equation which means that the connotation of actual provincial standard grain output presented by index of using rank is inconsistent. Adjustments of actual standard grain output by unifying using rank index of each province have been started to realize the transformation of farmland classification from provincial productions to national production in the process of national farmland classification. Coefficient of output form secondary districts of Hubei Province has been adjusted by adjusting border of partial provinces and cites to ensure its natural transition.The per unit area yield of grain on local standard cropping system has been computed by using county statistics of 2003 and 2004 from the Market Information Department of Agriculture Ministry with compare of average index of using rank of adjusted bordering ministration at county level of various provinces to testify that the adjustments are scientific and rational.The results from the investigation suggest that the adjustment method applied in this study is able to ensure the fruit of provincial farmland classification after national summary is in accord with the distribution tendency of quality of provincial farmland and could been comparable in the nation.