| Land, as extremely valuable resource and asset, is a complex of many natural resources and the foundation of human survival and development and is also taking an irreplaceably core position in the interacting relationship between population, resources, environment and economic development. Along with the fasten development of social economy and the progress of industrialization and urbanization, the over-exploitation of land resources has seriously affects the virtuous cycle both naturally and socially, which contributes to a series of land problems coming one after another, such as land degradation, waste of land resources, land pollution and so on. The sustainable development of land resources has become a common choice for human while facing a serious reality. In the process of practicing land resources sustainable development, we should set up a right concept of land resources value, carry out a comprehensive and effective accounts of land resources value, focus on the loss of value because of the depletion of land resources and environmental damage, and bring the land resources value into the green GDP accounting and make these as the important indicators of regional development.From the perspective of sustainable development of land resources, we need deeply study and discuss the core problem of how to correctly manifest the land resources value in a context of the system of national economy accounts, how accurately to analyze the interactive relationship between land resources and regional economic development in different times and places and how to provide scientific management decision on optimized allocation of regional land resources. The paper elaborates the constitution and the inner meaning of land resources value with the theories and methods of land economy and land ecology on the basis of reading domestic and abroad papers to summarize the study results on natural resource value accounting. The paper also bones the system of environmental and economic accounting(SEEA2003) to establish the accounting content of land resources value including the economic value and ecological value of land resources. The paper puts forward a practical accounting paradigm of land resources value in accordance with the accounting content of land resources value to supply and improve the accounting system and methods of land resources value. The coordinating correction coefficient of society, economy and ecology has been adopted to amend the accounting result of land resources value, which can subtract the loss value of land resources caused by society, economy and ecological environment uncoordinated development on the basis of the original accounting results and to get more real land resources value to satisfy space-time dynamic study. Finally, in order to realize space-time dynamic research of the land resources value, the paper utilizes the rate model, the variation-contribution model and chronological model to analyze the trend of land resources value and forecast the future value of land resources in a reasonable way. With the developing trend of land use, the paper uses Arc GIS spatial analysis technology to position the space transfer path and area of land resources value. These will become important information and decision for regional land department to regulate land resources and balance regional development.In actual practice, the paper chose Nanan district of Chongqing as a sample and adjust the corresponding data of index system from the fact of land resources condition. According to the relevant data from the year of 2005-2012, the paper takes an initial accounting on economic value and ecological value of land resources and amendment to the original result of land resources value, as well as an intens ive research using reasonable methods of space-time dynamic technology. On the basis of the research, establishing effective land resources management mechanism to maximize the possibility to prevent the excessive land use and ensure the maximization of land resources value. |
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