Research Of Database About The Second Rural Land Survey In Luzhai County

Land is the material base of the human survival and development, also is one of the basic elements of state stand. So the accurately land survey data is important for national economic construction and social development and is the basis of the land and resources management. The situation of land use a scientific reflection of land restricted by a various of nature, social, economic factors. Land survey intend to reflect the reality of the land utilization, aggregate various land areas according to way of prescriptive format and cartography. The survey results will provide a scientific basis for all level sections to integrated evaluate the situation of land use and draw up sustainable development strategies.This paper is completed on the basis of the project the second National Land Survey from the second land survey office the Ministry of Land and Resources. The main case study was carried out about rural land survey in Luzhai country. According to the GIS technology, the theory of land-use and correlative theories, rational rural land survey database is established. Layout of land-use and the variation of land-use data are analyzed through statistic area, spatital analysis, comparing the variation of land survey in Luzhai country. Main results are as follows:(1) Under the national norms and orders, combined actual situation of GuangXi, design relevant database attribute structure, establish rational rural land survey database, discuss the controversial area aggregation and related innovation of the construction process.(2) The second national rural land survey use ellipsoid area summary to ensure the consistency of method to calculate the spot areas and map theoretical area in land-use database. The paper through comparison of the second land survey line control of Administrative Region with the first result, the calculation of the area just have 248.541 acres difference, and the difference between ellipsoid area and historical data almost 21742.55 acres. Ensure the accurately of the second land survey investigation data under the existing technologies.(3) Analyze the outcome of the second rural land survey, include the area of various types of land ownership and distribution area, the distribution of primary land, all levels land area and land use structure.(4) Analyze the primary land use type of spatial distribution of the country, farmland are mainly in the central, southern hills and small plain areas; woodland are mainly in south-east, the northern border of the forest; garden plot are mainly distributed in the plain areas for cultivation of mulberry leaves, tea and other cash crops; towns, villages and urban and mining sites, transportation land, water and irrigation facilities mainly focus on the transportation countries of Luzhai and Luorong; the distribution of other lands are raised path through fields, it directly related to the distribution of the arable land, both have the same distribution pattern.(5) Analyze the changes of the second rural land survey data in detail, include type conversion of historical data, changes in the administrative area, primary land area changes, all levels land changes, emphasis on changes in the flow and its reason.