基于GIS的城镇土地定级估价模型研究

【作者】 张艳；

【导师】 马智民；

【作者基本信息】 长安大学 ， 大地测量学与测量工程， 2003， 硕士

【摘要】 随着城市经济的发展，城镇土地评估工作逐渐发展起来。城镇土地定级估价工作的大信息量、时效性、高质量、应用广泛等特性，对定级估价的核心——定级估价模型的质量提出了更高的要求，计算机技术和地理信息技术的飞跃发展，也为一些定量模型实现提供技术支持。 本文中就土地定级估价系统的核心——定级估价模型进行了研究、验证和分析。主要有两个方面： 1、定级单元分值计算模型——时间距离衰减模型 在定级单元分值的求取模块中，提出了时间距离衰减模型，模型中采用网络分析的方法，通过建立道路网络，进行路径分析，求取时间距离，进而按时间距离进行指数衰减或直线衰减，得到定级单元因素因子影响分值。并对这一模型进行了程序设计、在实际工作中进一步验证，并和其它方法模型进行了比较分析。 2、标定地价体系的确定模型 在标定地价体系的确定中，提出了逐步多元回归分析模型，利用现有样点地价资料，以及样点所在单元各因素因子分值，进行逐步多元回归分析，确定各用途用地的影响地价的因素因子及因素因子的影响强度。对模型进行了程序设计，验证，并和其它方法进行对比分析。 提出的定级估价模型使定性的工作更多的转化为定量的工作，使定量模型更为精确合理，避免了过多人为主观因素对估价成果的影响和干扰。使定级估价工作向系统化、自动化、科学化、高效、高精度发展。更多还原

【Abstract】 Town land classification and land price evaluation, as one important land management work, gradually develop along with the development of the city economy. The work of Town land classification and land price evaluation has characteristic such as large information, time limited efficacy, high quantity, applied extensive etc. These bring up the higher request to practicability and good quality of Model of land classification and land price evaluation that the core of the work. Computer science and geographic information science that develop rapidly nowadays also provide the technique support for model of some fixed amounts.In my paper, the core of LEIS is the model of town land classification and land price evaluation. I do the research, verification and analysis. Primarily there are two aspects:1)The calculation model of the value of land classifying units--Model of timedistance attenuation.In the calculation model of the value of land classifying units, author brings forward the model of time distance attenuation .In this model adopting the network analysis, and by establishing the road network, and proceeding path analysis, computing the time distance, then proceed the exponential attenuation or straight line attenuation on time distance, get the value of influence factor of the land classification unit. And do the program design for this model, actual work inside verification, and proceed to compare to other method model and to analyze.2) Model of ascertaining the land marked price systemIn the system of the land marked price, author brings up the model of gradually diverse return to return to analyze, and make use of the current data of the land price, and the factor value of unit samples located in, and proceed to analyze gradually diverse return to return, ascertain variable factors influence of land price and the influence strength of the factor. And to do program design and to validate, proceed tocontrast with other method and to analyze.The models of town land classification and land price evaluation, bring the work of town land classification and land price evaluation from the work of determining the nature to quantitative work, and make the fixed amount model more accurate reasonable, avoided the excessive and artificial and subjective factor to influence quote result with the interference. Make land classification the direction to systematize, automation, science, efficiently high accuracy development.更多还原