Research On Sustainable Land Use Planning Based On Valuation Of Resources Value

Industrialization and urbanization are an inevitable ways of social development, which not only drive the reformation and development of economy, society and politics, but also result in the changes of population structure, employment structure, land supply and demand, environment; farmland conversion is the direct effect of industrialization and urbanization. Since reformation and opening in China, farmland conversion supports economic development, and plays an important role in economic growth. On the other hand, a lot of negative effects occur in the course of farmland conversion, for example, much loss of arable land resources, by which results in a series of social, economic, and environmental problems. Farmland conversion still is a necessary cost for economic development in present and in the future in China, which is reasonable, because the cycle of farmland conversion is consistent with economic growth cycle. Simultaneously, there are a lot of additional costs for economic development hiding in the course of farmland conversion: one is ubiquitous market failure in the course of land resources allocation; another is government failure in the course of land resources allocation. The essential reasons of "dual" failure are fragmentary system of resources value and distorted resources price, which result in ignoring the latent expense of natural resources at decision-making time. So, the dissertation establishes coupling model of sustainable land use planning based on reconstruction of natural resources value and amendment of the objective function of land use planning by the results of land resources valuation in order to correct partially market failure and government failure in the course of allocation of land resources.Firstly, the dissertation defines connotation of value, natural resources and natural resources value, and reviews systematically the theories of sustainable development, natural resources value, and resources allocation, which are the foundation for reconstruction of resources value system and establishment of coupling model of sustainable land use planning. Then, the dissertation expounds necessity of land resources valuation, and reconstructs the system of land resources value based on syneretizing skillfully classification systems of land use and natural resources value; moreover, dissertates detailedly value compositions of different land use types, introduces briefly methods of land resources valuation, and prospects the production application of land resources valuation. Subsequently, the dissertation explains the connotation, objective and principle of sustainable land use planning, according to advanced ideas and methods of flexible theory, grey system theory and complex ecosystem theory, chooses linear planning model of grey parameter for the preferred method of sustainable land use planning, and introduces the basic steps of schemes appraisal and decision-making of sustainable land use planning with AHP. Finally, the dissertation establishes systematic framework of sustainable land use planning based on reconstruction of resources value, which is applied to Qingdao city for empirical test. Main conclusions are put forward as follows:(1) Though ecological and social services which are supplied by farmland supports socioeconomic development, farmers do not gain value compensation due to market failure. Thus, it hurts certainly farmers' positivity and spurs farmers to overspend farmland, which will ultimately result in farmland being in short supply. Thereby, it is necessary to compensate farmers in order to guarantee equity between rights and obligations.(2) According to effects of land resources valuation in Qingdao city, cultivated land in proportion to garden land, forestland, grassland, residence, industry and mining land, transportation land, water body and unutilized land is 1: 0.59: 0.11: 0.17: 41.33: 14.88: 0.28: 0.00 with economic value unit area at 1990 constant price, cultivated land in proportion to garden land, forestland, grassland, residence, industry and mining land, transportation land, water body and unutilized land is 1: 0.42: 0.52: 0.32: 10.87: 3.82: 1.31: 0.01 with total value unit area at 1990 constant price. The above-mentioned effect shows objective function of land use planning is partially corrected, coupling model of sustainable land use planning based on corrected objective function ean partially correct market failure and government failure in the course of land resources allocation.(3) Local governments excessively exploit unutilized land resources which can supply enormous ecological and social service function in order to achieve the task which keeps dynamic balance of cultivated land quantifies in district, because the policy which keeps dynamic balance of cultivated land quantities ignores regional differences of resources endowment. Actually, above-mentioned actions of local governments not only expend a lot of human resources, material resources and financial resources, but also impair the ability of sustainable socioeconomic development. Therefore, the policy which keeps dynamic balance of cultivated land quantities in district should make a difference between districts according to characteristic of regional resources endowment.In the end, the dissertation puts forward policy suggestions for the improvement of China's land use planning and management based on the above results of studies, including: bringing land resources valuation into SNA for the sake of realization of green GDP, modifying compensation standards of land expropriation system based on land resources valuation; establishing regional compensation mechanism of cultivated land protection in order to keep dynamic balance of different district interests.