Technical System Optimization Of Land Intensive Use Evaluation For Development Zones Based On Practical Experience

In order to promote rational and efficient use of land resources within development zones, Ministry of Land and Resources carries out a nationwide evaluation of land intensive utility of development zones and regards the result of evaluation as an important measurement for approval of development zones' dilatation, upgrade and policy-making. Based on the pilot evaluation experience from a series of typical development zones and various suggestions on this task, Ministry of Land and Resources has worked out a specialized technical regulation to guide the evaluation exercise. According to the practice, the working system and operational approach in the Regulation is reasonable in general, but there are still certain deficiencies which are away from the requirements of the evaluation goals. So it is necessary to have a comprehensive insight into current technical regulation and put forward optimization measures to insure the scientificalness, objectivity and comparability of the evaluation exercise and to better serve the practice.This paper firstly reviews domestic and overseas studies of land intensive use on urban districts and development zones, and systemizes the contributions and limitations of existing researches. Then the paper introduces current technical and working system and discusses the intensive properties and goals of the evaluation from the perspective of government to summarize requirements and principles to be followed in the design of evaluation technical system. Around above content, this paper makes a comprehensive and deep-going analysis on current evaluation model, evaluation index system and land-use data survey rules, and brings forward targeted betterment measures to improve these items. Finally, this paper discusses how to mend the defects in the acceptance check of evaluation results and illustrates means of applications of the results.The main contents and conclusions of the paper are as follows:1. The evaluation of land intensive utility of development zones carried out by Ministry of Land and Resources has its specific goal. This form of evaluation calls for a scientific and targeted evaluation model, and the availability and validity of data must be guaranteed in indicator design and land survey.2. The evaluation model based on the proportion of ideal values in the Regulation is reasonable in general, it satisfies the construction theory of multi-factor comprehensive evaluation model and fits the goals of the evaluation exercise.But the identify way of idealized value and index weight in the model gives the evaluation operators too much discretionary space which is contradict with objectivity and comparability of the task. The parameters shall be standardized in the provincial scope to meet the evaluation goals.3. The index system in the Regulation lacks consideration of feasibility, completeness and comprehensiveness, including these aspects:the caliber of some indicators is not clear and reasonable, some indicators has no practical value, and the system has not yet covered the full connotation of land intensive utility and has not fitted features of different types of development zones. To address these issues, this paper formulates an optimized index system.4. Land survey technique is a key factor that influence the indicator estimation and the quality of evaluation results. To let the work run smoothly, a solid theoretical basis and proper technical methods are required, the definition and caliber of each survey subject should be clear and reasonable. There are deficiencies in the design of land survey techniques in the Regulation, unreasonable land use classification, indefinite rule-making of wok map, inappropriate caliber and survey rule of construction data, economic data and high-tech industry land use data will all affect the quality of evaluation results. Accordingly, this paper makes improvements of land survey techniques.