The Research Between Urban Land Price And The Land Intensive UseBased On The GIS

Urban land is the foundation of social economic development and stability.Inrecent years, with the rapid economic development, city scale expansion and ruralpopulation rushing into the city lead to urban land’s shortage. At present, excepteducation, medical treatment, scientific research and other infrastructure andspecialland,most of the urban land was sold by invite public bidding, auction andlisting. Althoughthe urban land was sold for the highest bidder by this way, higher andhigher land price lead to people can not afford to buy the residential and commercialbuildings.Although the goverment has adopted corresponding measures to alleviatethe contradiction, in the long run,the problem cannot solve fundamentally. So thecontradiction will become much sharper than before.In order to alleviate the urban land contradiction, China had carried out theurbanlandvalue evaluation and Land intensive utilization degree evaluation in the earlynineties and recent years.Through the urban land value evaluationcan grasp urbanland price change in timely, and update each region land prices periodic. In recentyears the urban land price changes rapid, therefore, how to control the change of landprice in shorter time is become a key point on the urban land reasonable use.Urbanland price monitoring can only single from the price (i.e. quantity) to control of urbanland reasonable use, and how to from the land use efficiency, potential (i.e. quality)improve the urban land reasonable use become the another aspect of research. Inrecent years, China has carried out the land intensive utilization degree evaluation inall development zones,and obtains good results.But the work of urban land intensiveutilization degree evaluation was carried out in pilot city and economic developedareas,and the evaluation system of the urban land intensive utilization degreeevaluation also reference development zone. This system not suitable for thecharacteristics of each city,therefore,the evaluation results do not conform to the actual.Consulting a large number of research results and related references, the authorfound thatpredecessors to the correlation of urban land price and Land intensiveutilization was Confined to the research of urban land price or Land intensiveutilization, but the quantitative research between urban land price and Land intensiveutilizationinvolved little, almost blank. A large number of practice shows that there isclose relationship between urban land price and Land intensive utilization:the higherthe price of land the higher intensive utilization degree and the improvingreduce theunit area ofthe land price. Therefore, the quantitative research between the urban landprice and Land intensive utilization can control the blindly growth of the land price,increase the benefit of the land utilization and so on.Acording to the above problems, this paper introduced digital science andtechnology geographic information technology and remote sensing technology to cityland price assessment and monitoring, and established land price appraisal geographicinformation system, and made the Intensive utilization evaluation system In the studyarea points commercial residential and industrial, carried out the evaluation of theland intensive utilization degree in the research region. offered certain evaluationfrom the use of rationality and efficiency in the research area,also studied therelationship between the urban land price and land intensive utilization and miningthe internal relation using statistical method.The research found that the relationshipbetween the urban land intensive utilization and the price of urban land presents adirect ratio changes, but the enhancement of the land intensive utilization degree willreduce the land price of the unit area, on the contrary to suppress the land price of theunit area. Therefore, according to the mutual restriction relationship, Control blindlygrowth of the land price and improve the land use intension of unit area. Do a largenumber of meticulous work about how to construct evaluation system of urban landprice, how to establish the evaluation system of land intensive use and how to makethe quantitative analysis about the relationship of intensive utilization of urban landand the urban land price according the above three aspects to work, and analyse anddescribe them in combination with the specific research area.The research achvements and innovations were included the following aspects:（1）Taken out the method of spatial analysis of land grading based on rasterdata.This paper introduced the raster spatial analysis technology based on GIS intothe determination of the level of urban land, abstracts grading unit to raster data pixel, the size of pixel can be determined by the chance degree of land interval of differentstudies geographical market, take ArcGIS raster spatial analysis techniques to realizedifferent grading factor score calculation unit, ultimately, take the multi-factorclustering method to calculate the total score, and divide the land level. This methodis a fundamental change in traditional urban land grading methods, make theassessment of the results more objectivity, grade division of the border more scientific,and the efficiency and speed of the work has been greatly enhanced, is an innovativeland grading methods.(2) Put forward the method of ‘digital premium model’ in the land price surveys,to realize real-time monitoring and updating of urban land price.Select a sample point data of different uses of land transactions, mark thelocation of the qualified transaction samples on the the rasterized digital map, andestablish each transaction sample attribute information table, adopt different premiumcalculations to restore transaction samples estimation, and come to the price of land.Make the use of digital land price model to take the transaction samples data intodatabase, can be divided ino different time periods of the month, quarter and year, etc.to detect the transaction samples data, re-calculated the change data to get the landprices under the new market conditions. This method realizes real-time monitoringand update of urban land prices.(3) Put forward the new ideas and methods of establishing the evaluation indexsystem to evaluate the land intensive use of urban depending on different uses;The land use types of many areas in the evaluation of land intensive use werenotclassified to evaluate, but in the case of distinguishing land use, adopt the unifiedevaluation model and index system to evaluate the land intensive degree of the wholeregion, which didn’t take influencing degree of intensive utilization in different usesinto account, which means the considered factor of the intensive use of the evaluationof different uses is different.Therefore, in the evaluation of the urban land intensiveutilization degree, the evaluation index system to evaluate respectively depending ondistinguishing different uses must be established.(4) Make a quantitative analysis of the relationship between the urban landintensive utilization and the price of urban land.Make a quantitative analysis of the relationship between the urban landintensive utilization and the price of urban land firstly. Most the research between theurban land intensive utilization and the price of urban land involved in simplequalitative description between them ago, the quantitative relationship between them, how to restrict the development of both depending on the specific data, thesequantitative relationship’s research is almost blank. The paper has makenaquantitative analysis and detailed description of the relationship between themthrough the mathematical statistical analysis method and the relevant modelestablished.