The Farmland Suitability Comprehensive Evaluation And Carrying Capacity Analysis In Mountain Area Based On The GIS

Natural resources is rich in the mountainous area. and its development potential i s great.The natural resources of mountain area ensure ecological security system the ecological security,and it is the reserve resources for social and economic developmen t. But because people pursuit economic benefits one-sided and exploitate land unreason able We have to suffer the consequence of soil erosion,land degradation area,frequent mountain disasters,ecological environment deterioration Etc.Agricultural land resource su itability evaluation is the premise of the rational use of resources and effective config uration in mountain Area.Population carrying capacity is the basic work of the compre hensive improvement of land planning and utilization in mountainous areaThis paper selects the Jiaodong Peninsula has the typical characteristics of Qixia city as the main research region, based on the investigation, Combined with the "3S" technology, Researching regional topography-soil-climate-vegetation geoscience informa tion mining technology, establish basic data platform.From the overall situation of Qixi a city development, with ecological security, economic development, land sustainable u se as the goal, to carry out cultivated land suitability evaluation, forest land suitability evaluation,garden plot suitability evaluation and grazing land suitability evaluation, qu alitative and quantitative analysis of the results, Summary quantity and distribution cha racteristics of cultivated land forest land,garden plot and grazing land.comprehensive balance all kinds of land the suitability, requires consideration of the national policy and the function of ecological construction in mountainous area, in accordance with th e "land priority, then the garden and grazing land, and maintain the existing woodland and garden" principle to arrange by the industry; three methods of the ecological foo tprint, grain production capacity, labor demand, carrying scientific estimation and judg ment of the reasonable population on the mountain area Based on the above research results, i get land use suitability evaluation result and the regional population carrying capacity estimation results in QixiaThe agricultural land suitability evaluation is a strong exploration work. In the pr ocess of evaluation emphasizes the analysis of social and economic characteristics and economic benefits, can reflect and reflection of the natural characteristics of land use social and economic benefits. I combined with the features of mountain area in the e valuation process, Using the method of mathematical model combining with GIS Tech nology, based on regional natural background characteristics and social and economic status as the basis, Then discusses the method of agricultural land resource suitability evaluation inmountain county, and it increases the comprehensive evaluation of land re sources in the mountain area, adds application case agricultural land resource suitabilit y evaluation in mountainous areas I also established the mountain accurate database w hich can improve the research precision, is conducive to change on land resources spa tial county and functional differentiation of in-depth analysis, to more microscopic pra ctice.And it provids parameters supports for the management of land resources in mo untainous Areas and the adjustment of agricultural structure...