Research On Health Evaluation Of Urban Land Use System Based On The PSR Model In Harbin

Healthy urban land use system is a necessary condition for achieving orderly urban land systems and sustainable development. Taking Harbin City as the study area, starting from the human angle between land use, building index system based on the "pressure--state response" model (hereinafter referred to as the PSR model) urban land use system health; using integrated function method Harbin differences in the time of urban land use system health; introducing coordination function, degree of internal subsystems coordinated analysis of urban land use systems; calculated according to the degree of disorder formula to calculate the10years2002-2011for each urban land use system health disorders degree of disorder of the main obstacles to identify factors that affect the health of the system and the classification of indicators in order to fully understand the system of urban land use2002-2011Harbin healthy level; Finally, land use characteristics of Harbin city, proposed to improve the health of urban land use system comments and suggestions, provide a basis for decision-making urban land managers. The main conclusions are as follows:(1) The connotation of urban land use system health were defined. Can be summarized as urban land use system health connotations of this article:First, the health of the various subsystems, namely, urban infrastructure, rational land use structure, land use intensity, the overall efficiency of the system can be produced to meet human needs; Second, urban land use pressure, state, response to a virtuous cycle between the three subsystems, healthy development, the formation of a good role-Feedback-mechanism of action.(2) Comprehensive analysis of the health of urban land use systems theory system, including the system of scientific theories, who coordinated theory, theory, theory and the ecological and economic coordinated development of regional sustainable development theory. And these theories, Harbin urban land use to evaluate the health of the system.(3) In this paper, considering the advantages and disadvantages and the specific circumstances of the study area indicators system, from the pressure, state, response to these three aspects of the establishment of guidelines layer to the overall health of urban land use objectives for the target level, select25indicators built in Harbin land use system health evaluation index system based on the principle of multi-objective planning efficiency coefficient method province12prefecture-level cities.2002-201Hand use analysis to evaluate the performance of city level. The results show:2002-2011Harbin urban land use and constantly improve the level of system health, healthy level of "unhealthy-sub" evolution; inadequate infrastructure, low level of intensive land use is leading to Harbin urban land use system health level is not high the main reason; Harbin urban land use system and the health system coordination degree PSR positively correlated, indicating PSR coordination between the various subsystems of urban land use is largely reflects the balance of the health system, the higher the credibility of the model.(4) Factor in the diagnosis of dyspraxia2002-2011Harbin urban land use system to calculate the degree of health disorders, were obtained for each single factor and the degree of disorder classification index Harbin urban land use system health. The results showed that:the proportion of the state of disorder in the land use system health disorders each year factors are highest, and more than50%annually in2006-2011. Stress disorder Trends2002-2011showed up after the first drop, and reached its lowest point in2007, described in2007the pressure subsystem belonging to the healthy development of health status. Barriers to change in response to the overall performance of2002-2008, the proportion of response Obstacles in more than20%in2009-2011to20%or less, indicating that with the Government’s emphasis on land management and improving the urban ecological environment land use in response to the entire sub-urban land use system health disorders significantly reduced.Harbin summed up the status of evaluate the problems of urban land use, there are a limited supply of land resources, population pressure, the more prominent contradiction between people; urban land use structure is not rational, low land use efficiency; land wasted; ecological environment damage and other aspects. To improve the efficiency of land use in the study area, to achieve efficient and rational use of urban land resources, land for the current problems in Harbin city, should improve the degree of urban land use; strengthen land planning capabilities, deepen land management reform; construction of urban environmental facilities the construction, improve urban environmental quality; reasonable arrangements for land layout, adjust and optimize the structure and layout of the land; government regulation and market combined with land allocation, and ultimately promote the improvement of urban land use system health.