| In resent years, China’s economic has developed rapidly. The process of industrialization is accelerating, Land for construction demand increases sharply. In order to better protect arable land, to ensure food safety, The Ministry of land and resources put forward through the development and utilization of low hilly resources to alleviate the contradiction between land supply and demand problem. Yinan county is located in the Middle Hilly Area, Mild slope of low mountains and hills resources are rich in the jurisdiction where have great potential for exploitation,through the development and utilization of low hill gentle slope can effectively ease the contradiction between supply and demand of land, ensure industrialization, urbanization and new rural construction land, promote the use of land resources coordinated with economic and social development.This paper selected a typical Yinan County pilot county of Shandong Province in middle south of Shandong Province hilly district as the research object, by means of 2010 annual land change survey results, based on digital photo map and digital elevation model, in view of geographic information technology, according to surveying and mapping, methods by using AHP and fuzzy comprehensive evaluation, Studied the mild slope of low mountains and hills of comprehensive utilization of resources and environmental impact of Yinan County, the main research contents and results are as follows:(1)Check out the status and distribution characteristics of low hill gentle slope resources in Yinan County. Yinan County is rich in total resource of Mild slope of low mountains and hills. Area has reached about 82461.27 ha, occupies entire county area with the ground nearly 46.21%; Less than 15 degrees occupy 85.08% of total resources, Suitable for the farmland and comprehensive development and utilization of construction land; Distribution is relatively concentrated, mainly concentrated in the sun Zu Zhen, double Hou Zhen and and I town township.(2)Evaluated the suitability of the comprehensive development of hilly slope Yinan county resource. There is a totol area of 7614.85 ha which is accounting for 9.23% of the most suitable land development area; the area of Suitable cultivated land is 18802.29 ha which accounts for 22.80%;the area of appropriate farmland is 8178.85 ha which accounts for 9.92%;the area of locally appropriate farmland is 43626.10 ha which accounts for 52.90 %;the area of Not appropriate arable farmland is 4239.16 ha which accounts for 5.14%, On the whole the appropriate development of cultivated land accounted for 41.95%, the proportion of not suitable is low. The area of appropriate farmland is 8178.85 ha which accounts for 9.92%, The area of the most suitable construction land is 5054.10 ha which accounts for 6.13 %, the area of Suitable to construction land is 23573.45 ha which accounts for 28.59%%,the area of Suitable for construction land is 15854.10 ha which accounts for 19.23%%, The area of not suitable for construction land is 37979.62 ha which accounts for 46.06%, On the whole, the suitable construction land development suitability ratio was 53.94%, the proportion of suitable is high.(3)Definite the potential and development model of exploiting the mild slope of low mountains and hills. The theory development potential of arable land of Yinan County in the near future is 7614 ha. The theory development potential of appropriate construction land is 5054 ha; In the near future the realization potential scale of arable land is 1506.38 ha, the realization potential scale of appropriate construction land is 744.6 ha, the total area of new exploiting low slope hilly land is 2250.98 ha which accounts for 2.73% of the whole resource of low slope hilly land. Land development on the use of improved smoothness, capacity of irrigation and increasing soil fertility as the main content of the construction mode, construction land recommended platform mode and gentle slope type mode to developing.(4)Constructing the comprehensive development layout and timing of low hill gentle slope resource. Proposing to exploit 1506.38 ha cultivated land before 2015, divide two portion of land development and reclamation of construction land, concentrated in the Yi Wen Zhen, and Qing Tuo Zhen Tong Jing Zhen, the newly increased cultivated land is 155.48 ha. The first phase complete two projects, the total development area is 274.14 ha; the second phase complete five projects, the total development area is 1232.24 ha, Proposing to exploit 744.60 ha construction land before 2015, mainly distributed in Zhang Zhuang Zhen Da Zhuang Zhen and Ma Mu Chi Xiang, the occupation of cultivated land is 155.88 ha, the main direction of development is Industrial Development, key construction land development area is the circular economy industrial agglomeration area of Yinan county. The first phase complete two projects, the total development area is 395.28 ha which accounts for 53.09%of the whole area of appropriate construction land. the second phase complete three projects, the total development area is 349.32 ha, the occupation of cultivated land of new arable land and construction land are both 155.48 ha to ensure the balance of occupation and compensation.(5)Assessing the environmental effects of the development of low hilly resources. Through the research on the present situation of ecological environment of Yinan county and based on the analysis of environmental impact identification, applicating the method of simple checklist, constructing the index system of environmental impact assessment of low slope hilly land planning, Show that the effect of the implementation of land development and construction land development project for most index is positive and beneficial, negative index influence degree are relatively small, that is, the implementation of the project has little influence on the ecological environment of most index, but the development and construction of land development and resulting to the improvement of the city level, may lead the development of ecological environment to a negative road, In the implementation process, we should take corresponding measures to reduce or eliminate.In this paper, through the exploration of Middle South Hilly gentle slope characteristics of the road of development and utilization of resources in the low hill in Yinan County, It can provide theoretical guidance for the development and utilization of resources of low hill gentle slope in Yinan County, It can also provide certain theory and practice reference for the development and utilization of low hill gentle slope work of Linyi city and Shandong province and even the whole country. to further enrich the theoretical system of research areas of low hilly. |
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