Analysis On Change Of Land Use For Non-agricultural Land And Countermeasure Of Land Safe Use

Land is not only the most important basis of existence and development of human being but also the part and parcel of environment system. The Safety of land resource makes up of the basis of the national food security, environment security and economy security. With the rapid growth of population and the quick progress of industrialization and urbanization of China, demands for farmland have increased and much farmland has been used as non-agricultural land, which has resulted in sharp reduction in farmland area, continuous degradation in its quality and serious damage to environment, badly restriction of the safe use of land resource and sustainable development of society and economy. For the sake of nation security and sustainable development, harmonious proportion of land resource in each fields, exact cognition and accommodation of the farmland use change, gently raveling out human-land illogicality, assurance of secure use of land resource are of positive realistic significance.On the base of reviewing the studies in the past, this paper chooses Wanzhou district as the sample area, takes the date and relevant materials of the period from 1997 to 2004 as foundation, takes the secure use of land resource theory as guide, and takes many kinds of qualitative and quantitative approaches as methods. This study mainly research dynamic change of land use at space-time sequence, driving factors of farmland use change, prediction of the changing trend of the cultivated land and construction land in the following 16 years in the sample areas and hidden safety troubles due to excessive Land use for non-agricultural land since execute Land use Planning. The content and result includes the following aspects:(1) According to the date and graph from the investigation of the change of the land use from 1997 to 2004 and the list of the execution of Land use Planning and quantity change analyses, diversion matrix analyses and space analyses, we can reach the conclusion: There has been obvious diversification of land use from 1997 to 2004. Agricultural land proportion increases, among them woodland increases 19361.44hm~2, but cultivated land decreased greatly, totally 12820.55 hm~2, with...