基于ARCGIS的耕地后備資源宜耕性潛力分析
[Abstract]:According to the "Eleventh Five-Year Plan", by the end of 2010, the area of cultivated land in the whole country will not be less than 1.8 billion mu. The data of the second national land survey show that The total area of cultivated land in China has reached 135.385 million hm2, nearly 13.587 million hm2, more than the first national land survey data, but in fact, the phenomenon of "no increase in area, increase in data" appears. The General Office of the Ministry of Land and Resources has promulgated the notice on carrying out the investigation and evaluation of the national cultivated land reserve resources, which is based on the results of the second national land survey. In this survey, the basic situation of the number and distribution of all kinds of arable land reserve resources is counted and the database of investigation and evaluation of arable land reserve resources is established using the latest aggregate evaluation data, which combines social, economic, and environmental impacts. The suitability evaluation of cultivated land reserve resources was carried out, and the feasibility and timing of cultivated land reserve resources development and utilization under different land use modes were analyzed. However, there is no unified standard for the evaluation system and methods of cultivated land reserve resources in China. With the rich theory and experience of high-tech and research, it is necessary to improve the evaluation system according to the characteristics of cultivated land reserve resources from the use of high and new technology, innovation theory support, improvement of evaluation system. The study of cultivated land reserve resources is further enriched in the research of calculation model and so on. The compilation of this article coincides with the opportunity to carry out the investigation of cultivated land reserve resources nationwide. From the background of the evaluation of cultivated land reserve resources, domestic and foreign research status quo; clear research purpose significance; define the relevant concepts; take Kailu County, Tongliao City, Inner Mongolia Autonomous region as a case study area; Based on the analysis of the indexes of selecting suitable tillage potential of cultivated land reserve resources, the evaluation index system of arable land reserve resources suitable tillage potential is established, and the functions of spatial superposition and mapping of ARCGIS are used as tools. The quantitative method of potential grade calculation is used to study the potential grade and type of arable land reserve resources in this county, and to analyze the characteristics of different potential grades in spatial distribution. Finally, according to the potential grade and structure layout of arable land, reasonable suggestions are put forward for the development of cultivated land reserve resources in this county. The theoretical significance of this paper lies in the discussion of the research system, which can enrich the theoretical research on the development and utilization of cultivated land reserve resources in terms of specific methods, research ideas, selection of indicators, etc. The practical significance lies in the research results of Kailu County. It has strong applicability and guidance to cultivated land reserve resources in the study area, and provides reference suggestions for the development and utilization of cultivated land reserve resources in Kailu County.
【學(xué)位授予單位】:天津工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:F323.211
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