The Theory And Method Of Planning Agricultural Land Consolidation Based On Land Suitability Assessment

It is important to raise rate of land use and maintain homeostasis of the gloss of cultivated land by agricultural land consolidation. Our country has cany out mis work and achieve a fairy success. But current land consolidation taking increase of cultivated land as goal, is not in the stage when it optimize land finally base on land suitability assessment, but still in the primary stage. The short-term economy increase is bound to cover up the debasement of comprehensive benefit of economy, social and ecology. In mis thesis, we think mat it is necessary to cany out land consolidation base on suitability assessment to achieve the comprehensive object It ask us to analysis natural, social and economic factor in allusion to land use activity above all, then assess land suitability for farming, gardening, forestry, animal husbandry. Based on this, this thesis assesses the suitable degree of diversified land, and analysis number and distribution of land suitable for all kinds of use. It contributes to reasonable ?utilization of the land, and provide scientific basis for optimizing the land structure of farming, gardening, forestry, animal husbandry.The thesis takes YIFO as a example. With the support of geographic information system, and using of the map of soil, land use. The basic database has been established And based on the database, the land suitability has been attained as follows:?the theory relating to land consolidation is discussed, which includes the system theory, the theory of sustainable land use, the theory of coordination of the people and the land, and ecology theory.?Also, the basis, principle, target and program of land suitability assessment serving for land consolidation is discussed.?The actuality, characteristic and suitability of land use is analyzed, then the factor serving for assessment is chosen, and the basic database is established by using of the map of soil, land use and social and economic data acquired through investigation.?The cultivated land planning is work out finally, based on the result of suitability assessment The planning includes field planning, road planning, acequia and drain planning.