【作者】 毛良祥；

【导师】 刘友兆；

【作者基本信息】 南京农业大学 ， 土地资源管理， 2004， 硕士

【摘要】 土地资源是人类生产与生活的载体，是一个国家存在与否的基本特征，还是生态环境系统的重要组成部分，因此，土地资源安全构成国家安全的基础。通过土地资源安全评价工作，就为测度土地资源安全度，解决土地利用矛盾提供了依据，其中区域尤其是县级尺度的土地资源安全评价是土地资源安全评价的重中之重。 本文在前人研究的基础上进一步丰富和发展了土地资源安全的概念和内涵，认为土地资源安全是指一个国家或地区保障当代和后代人可以持续、稳定、及时、足量和经济的获取所需土地资源或土地资源产品，而不损害其未来保障潜力的状态或能力。它应该包括5个方面的基本含义：量要充裕，质要保证，结构多样化，分布均衡，获取经济。 本文比较系统的分析了土地资源安全的理论基础和影响因素。认为人地关系理论、可持续发展理论、生态经济理论、土地稀缺性理论、系统动态平衡理论等构成了土地资源安全评价的理论基础。 本文参考可持续利用评价和资源安全评价(包括矿产资源安全、能源安全、水安全等)指标体系研究方面的成果，初步建立了土地资源安全评价指标体系框架。该指标体系包括2个目标层：区内保障度、区际保障度；13个准则层：生态环境、技术保障、水资源保障、自然灾害、土地利用、资源存量、农用地保障、建设用地保障、购买力、价格因素、资源补给、市场风险、制度保障。 本文选择金坛市作为评价案例。在分析金坛市土地利用现状的基础上，根据所构建的土地资源安全评价指标体系框架，确定了金坛市土地资源安全评价的指标体系。评价中，对各指标的数量化实现方式进行了探讨，最终形成了金坛市土地资源安全评价结论。评价结果显示金坛市土地资源安全态势基本稳定，始终保持在基本安全和很安全之间，结果较好；金坛市1990年到2000年的土地资源安全态势主要受区际保障度影响。 本文还对金坛市土地资源安全的障碍因素进行了诊断，发现购买力、水资源保障和建设用地保障等准则层的指标是主要的安全制约因素。并由此认为，金坛市要提高土地资源的综合利用水平，实现土地资源的长久安全，应优先采取如下措施：①节约利用水资源，提高水利用效率；②防止水污染，保护水质；③保证耕地数量，提高耕地质量，挖掘生产潜力;④控制建设用地规模，提高建设用地产值。⑤明确土地产权，促进土地流转，鼓励农民离土进城创业。更多还原

【Abstract】 Land resources are the carrier of human’s production and activities, the basic character of one country’s existence and the important constituent of environment system. So, land resources security constitutes the basic of country security. The work that evaluation of land resources security provides a foundation for measuring land resources security and solving land-use conflict. Evaluation of regionally especially county level land resources security is the crux of the matter.The paper further enriches and develops the conceptions and implications of land resources security based on former research progress. Land resources security is defined as: the situation or capability of a nation or region for sustainable, steadily, timely, sufficiently and economically getting the demanded land resources or products from land resources and not damaging the future ones whether contemporary or descent. This definition’s meanings include five aspects: abundant quantity, assure quality, various structure, balanced distribution and rational price.The paper analyzes systemically the theoretical foundations and influencing factors of land resources security. Its theoretical foundations include the theories of man-land relationship, sustainable development, ecological economy, land scarcity and systemically homeostasis etc.On the basis of the existing research on the appraising indicator system of sustainable utilization and resources security(include mineral resource security, energy resource security and water resource security), the paper builds up the indicator system of land resources security. There are two targets in the indicator system include safety inside and between regions, and they are the pillars of environment, technology, water resource, natural disasters, land-use, mothball resources, supplied cultivated land, supplied constructed land, purchasing power, price, supplied resources, market risks and institution.The paper taking Jintan City as an example. On the basis of the constructing indicator system of land resources security, the paper analyzes the land-use situation of Jintan City, and then builds up the indicator system of land resources security in Jintan City. Firstly, the measure of each index is discussed in detail. Then the conclusion about evaluation of land resources security in Jintan City is draw. The conclusion is mainly affected by the safety between regions. Finally, the paper diagnoses the obstacles of land resource security in Jintan City. These obstacles include indicators of purchasing power, water resource and supplied constructed land. In Jintan City, to improve land utilization level and realize sustainable security of land resources, the following advices are gived: (1)water resources must be frugally utilized to improve utilizational efficiency of water resources; (2)water pollution must be put in order to protect water quality; (3)the quantity of cultivated land should be ensured and the quality of cultivated land should be improved to bring into potential productivity; (4)the scale of constructed land should be controled to increase production value of constructed land;(5)accelerate the transfer of cultivated land’s right of use.更多还原