基于空间优化配置模型AgentLA以及多因素耦合的敦化市农用地整治研究

发布时间：2018-03-14 20:03

本文选题：农用地整治　切入点：GeoSOS模型　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：农用地整治作为土地整治的一项重要内容,能够有效促进土地资源合理利用,起到整合耕地资源、调整农用地结构、优化耕地布局、增加耕地数量、提高耕地质量以及改善区域生态环境的作用。新时期的农用地整治更加注重耕地资源利用的可持续性,已经不仅仅局限于耕地数量的增加,将更加注重耕地质量的提高以及对整治区域生态服务价值的提升,以期实现城乡统筹发展。另外,通过农用地整治建设高标准农田,将会对农田集中连片分布、机械化的实现以及农业现代化规模经营起到积极的促进作用。本文以敦化市为研究区域,基于ArcGIS 10.2平台、地理模拟优化系统GeoSOS,充分运用空间分析方法,以耕地占补平衡为先导,综合考虑耕地整治亟需度、农用地整治规模效应、生态安全性,划定农用地整治区类型。将分区结果与耕地限制因素聚类结果相耦合,深入分析各整治类型区的限制因素所在,以明确各类型区整治难度和方向。最后,在农用地整治分区的基础上,整合耕地自然因素、经济因素,构建农田适宜性图层,通过多智能体的空间优化配置模型(AgentLA)自动生成高标准农田保护区范围。本文的研究成果可为敦化市的农用地整治、耕地布局调整提供技术支持,发挥土地整治的最优影响,促进敦化市土地资源的可持续发展,保护耕地资源,实现粮食安全,有效缓解人地矛盾。研究结果表明:(1)预测期内,敦化市耕地在空间分布格局上依旧延续优质耕地的保护与占用相重叠、人地矛盾尖锐的特点,这种耕地空间分布特点使得敦化市耕地保护任务艰巨;(2)敦化市全域耕地占补平衡基本可以实现,补充耕地以12等为主,但存在个别乡镇耕地供不及求,实现耕地质量数量平衡难度很大,其中以官地镇和雁鸣湖镇最为突出;(3)敦化市耕地质量总体不高,质量等别具有一定的提升空间,耕地主要限制因素为剖面构型,其次是坡度、质地-构型以及障碍层-构型;(4)综合考虑耕地整治亟需度、规模效应以及生态安全性,本文将敦化市耕地划分为5个整治类型区:优化整治区、重点整治区、谨慎整治区、有条件整治区、暂不整治区,并明确了各类型区的整治方向与重点;(5)AgentLA模型在划定高标准农田保护区范围方面,具有很高的应用价值,划定的保护区范围具有斑块个数更少、单个图斑面积更大也更紧凑的特点,有利于保护区的日常维护和管理,能够更好地促进农田集中连片分布、农业规模化经营。
[Abstract]:As an important part of land regulation, agricultural land regulation can effectively promote the rational use of land resources, integrate cultivated land resources, adjust the structure of agricultural land, optimize the distribution of cultivated land, and increase the amount of cultivated land. Improving the quality of cultivated land and improving the regional ecological environment. In the new period, agricultural land management pays more attention to the sustainability of the utilization of cultivated land resources, which is not limited to the increase of cultivated land quantity. More attention will be paid to the improvement of the quality of cultivated land and the enhancement of the value of ecological services to renovate the region, with a view to achieving the overall development of urban and rural areas. In addition, the construction of high-standard farmland through the regulation of agricultural land will focus on the distribution of farmland in sections. The realization of mechanization and the scale management of agricultural modernization play a positive role. This paper takes Dunhua City as the research area, based on ArcGIS 10.2 platform, the geographical simulation optimization system GeoSOS, fully utilizes the spatial analysis method, takes the cultivated land occupation and compensation balance as the forerunner, Considering the urgently needed degree of cultivated land regulation, the scale effect of agricultural land regulation, ecological security, and delimiting the type of agricultural land regulation area, combining the results of zoning with the clustering results of cultivated land restriction factors, the paper deeply analyzes the restrictive factors of each regulation type area. In order to clarify the difficulty and direction of the regulation of each type of area. Finally, on the basis of the division of agricultural land regulation, integrating the natural factors of cultivated land and economic factors, constructing the farmland suitability map layer, The range of high standard farmland reserve is automatically generated by the spatial optimal allocation model of multi-agent. The research results in this paper can provide technical support for agricultural land regulation and farmland layout adjustment in Dunhua City, and give play to the optimal impact of land regulation. To promote the sustainable development of land resources in Dunhua City, to protect cultivated land resources, to realize food security, and to effectively alleviate the contradiction between man and land. The spatial distribution pattern of cultivated land in Dunhua City is still characterized by overlapping protection and occupation of high-quality cultivated land and sharp contradiction between man and land. The spatial distribution of cultivated land makes the task of cultivated land protection in Dunhua City arduous. The balance of farmland occupation and compensation in the whole area of Dunhua City can be basically realized. The supplementary cultivated land is mainly 12 and so on, but there are some villages and towns where the supply of cultivated land is not enough. It is very difficult to realize the quantity balance of cultivated land quality, of which Guandi Town and Yanming Lake Town are the most prominent ones. The cultivated land quality in Dunhua City is not high in general, and the quality has certain improvement space. The main limiting factor of cultivated land is the profile configuration, followed by the slope degree. In this paper, the cultivated land in Dunhua city is divided into five types of regulation areas: optimized regulation area, key regulation area, cautious regulation area, etc. It is clear that the regulation direction and key point of AgentLA model of each type of area have high application value in delimiting the high standard farmland protection area, and the number of patches in the delineated protected area is even less. The larger and more compact area of a single map is beneficial to the daily maintenance and management of protected areas, and can better promote the centralized distribution of farmland and large-scale management of agriculture.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P208;F321.1

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