黄淮海平原耕地集约利用时空差异及其影响因素研究

发布时间：2018-02-11 17:08

本文关键词： 耕地集约利用时空差异影响因素 ArcGIS GeoDetector模型　出处：《天津工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：我国是农业大国,农业在我国的社会生产以及现代化建设中占有重要地位,粮食作为我国国民经济发展的物质基础,其安全问题则是关乎我国经济安全与国计民生的重大问题,保障粮食安全的首要措施是保护我国粮食主产区的地位。黄淮海平原是国家重要的粮棉油生产基地,包含有中国农业大省河北、河南、山东、江苏、安徽,人口和耕地占到全国的五分之一,为保障国家粮食安全做出了突出的贡献。随着经济社会快速发展,建设占用、农业结构调整、生态退耕和自然灾毁等不可抗力使得耕地保护在保量守红线的基础上不得不另辟蹊径,耕地集约利用成为必由之路。黄淮海平原在我国粮食安全体系中占据了重要的地位,因此,对黄淮海平原耕地集约利用水平的时空差异及其影响因素进行研究,对了解该区域耕地集约利用现状和保障国家粮食安全具有重大现实意义。本研究在国内外研究综述的基础上,为探讨黄淮海平原耕地集约利用水平的时空变化规律,明确耕地集约利用水平的影响及制约因素,以黄淮海平原为例,利用自然地理数据和社会经济调查数据,构建耕地集约利用的评价体系和影响机制的分析模型,对黄淮海平原约340个区县1996年至2011年的耕地集约利用水平进行了研究与分析,并针对耕地合理集约利用和保护提出相应对策与建议。首先,以黄淮海平原地区为例,以区县作为研究单元,测算各个区县近16年耕地集约利用水平;在地理信息系统(GIS)空间分析功能的支持下,分析黄淮海平原各区县耕地集约利用水平的时空变化特征。其次,运用鱼骨分析法列举耕地集约利用的影响因素,在此基础上构建自然因素与社会经济因素对黄淮海平原耕地集约利用水平影响的GeoDetector模型,进而从影响力角度定量分析各个影响因素的影响机制。最后,针对自然因素与社会经济因素对耕地集约利用水平的影响机制,找出其限制性因子,并针对问题提出相应的对策建议。
[Abstract]:China is a big agricultural country, and agriculture plays an important role in the social production and modernization of our country. As the material basis of the development of our national economy, the security of grain is a major issue related to the economic security and the national economy and people's livelihood of our country. The first measure to ensure food security is to protect the status of the main grain producing areas in our country. The Huang-Huai Hai Plain is an important grain, cotton and oil production base of the state, including Hebei, Henan, Shandong, Jiangsu, and Anhui, the major agricultural provinces of China. The population and cultivated land account for 1/5 of the country, and have made outstanding contributions to ensuring national food security. With the rapid economic and social development, construction and occupation, and agricultural restructuring, Force majeure, such as ecological conversion of farmland and natural disasters and destruction, has forced the protection of cultivated land on the basis of keeping the red line, and intensive utilization of cultivated land has become the only way. The Huang-Huai-Hai Plain plays an important role in the food security system of our country. Therefore, the temporal and spatial differences of cultivated land intensive utilization level in the Huang-Huai-Hai Plain and its influencing factors are studied. It is of great practical significance to understand the current situation of intensive utilization of cultivated land in this region and to ensure national food security. Based on the summary of domestic and foreign studies, this study aims to explore the temporal and spatial variation of cultivated land intensive utilization level in the Huang-Huai-Hai Plain. The influence and restriction factors of cultivated land intensive utilization level are defined. Taking the Huang-Huai-Hai plain as an example, the evaluation system and the analysis model of the influence mechanism of cultivated land intensive utilization are constructed by using the natural geographical data and the social economic survey data. This paper studies and analyses the level of intensive utilization of cultivated land from 1996 to 2011 in about 340 districts and counties of Huang-Huai-Hai plain, and puts forward corresponding countermeasures and suggestions for rational intensive utilization and protection of cultivated land. First, taking the Huang-Huai-Hai plain as an example, Take the district and county as the research unit, calculate the cultivated land intensive utilization level of each district and county in the last 16 years; with the support of the GIS spatial analysis function, analyze the temporal and spatial variation characteristics of the cultivated land intensive utilization level in the Huanghuai and Huaihai Plain. On the basis of the fish bone analysis method, the influence factors of intensive utilization of cultivated land are listed, and the GeoDetector model of the influence of natural factors and social economic factors on the level of intensive utilization of cultivated land in the Huang-Huai-Hai Plain is constructed. Finally, aiming at the influence mechanism of natural factors and social economic factors on the level of intensive use of cultivated land, the restrictive factors are found out. And put forward the corresponding countermeasures and suggestions to the problem.
【学位授予单位】：天津工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F323.211

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