长株潭地区耕地资源生态安全评价与调控模式研究

发布时间：2018-04-30 05:00

本文选题：长株潭 + 耕地资源　；参考：《湖南师范大学》2015年硕士论文

【摘要】：耕地资源生态安全评价是进行耕地资源生态安全研究的基础,是耕地资源生态安全评价和规划设计的重要依据。长株潭地区是湖南省经济的核心增长极,确保该地区的耕地资源生态安全对保证全省经济的可持续发展和“两型社会”胜利建设具有重要意义。本文运用BP神经网络方法对长株潭地区耕地资源生态安全进行评价,采用层次分析方法和障碍度模型方法对其进行障碍因子诊断,基于诊断结果构建长株潭地区耕地资源生态安全调控模式,主要研究内容和成果如下:1、采用BP神经网络方法,对长株潭地区耕地资源生态安全的时间变化规律和空间分布格局进行了分析和评价研究,研究结果表明,长株潭地区耕地生态安全状况近年来整体上呈现出变差的趋势,耕地资源生态安全状况受经济社会发展状况和人类活动作用强度的影响较大,长沙市辖区、长沙县、株洲市辖区、湘潭市辖区等几个经济发展状况较好的地区耕地资源生态安全状况相对较差。2、基于层次分析法、障碍度模型方法对长株潭地区耕地资源生态安全的主要障碍因素进行诊断研究,研究结果表明耕地资源数量和耕地资源质量是长株潭地区耕地资源生态安全的主要障碍因素。3、基于长株潭地区耕地资源生态安全诊断研究结果,本文引入耕地资源数量保护模式、耕地资源质量保护模式和耕地生态环境保护3个保护模式,根据长株潭地区耕地资源的自然、经济社会状况,设计了符合长株潭地区耕地资源生态安全发展状况的生态农业模式、耕地资源整理模式、耕地资源生态修复模式和耕地资源环境治理模式。
[Abstract]:The ecological security evaluation of cultivated land resources is the basis for the study of ecological security of cultivated land resources and is an important basis for the evaluation of ecological security of cultivated land resources and the planning and design of cultivated land resources. Chang-Zhuzhou-Xiangtan region is the core growth pole of Hunan province economy. It is of great significance to ensure the ecological security of cultivated land resources for the sustainable development of the province economy and the successful construction of "two-type society". In this paper, the ecological security of cultivated land resources in Changsha-Zhuzhou-Xiangtan area is evaluated by BP neural network method, and the obstacle factors are diagnosed by the method of AHP and the method of obstacle degree model. Based on the diagnosis results, the ecological security regulation model of cultivated land resources in Chang-Zhuzhou-Xiangtan area is constructed. The main research contents and results are as follows: 1. BP neural network method is used. The temporal variation and spatial distribution pattern of cultivated land ecological security in Changsha-Zhuzhou-Xiangtan area are analyzed and evaluated. The results show that the ecological security of cultivated land in Chang-Zhuzhou-Xiangtan area has become worse in recent years. The ecological security of cultivated land resources is greatly affected by economic and social development and the intensity of human activities. Changsha City District, Changsha County, Zhuzhou City District, The ecological security of cultivated land resources in Xiangtan City area is relatively poor. 2. Based on Analytic hierarchy process (AHP) and barrier degree model method, the main obstacle factors of cultivated land ecological security in Changsha-Zhuzhou-Xiangtan area are diagnosed and studied. The results show that the quantity and quality of cultivated land resources are the main obstacle factors to the ecological security of cultivated land resources in Changsha-Zhuzhou-Xiangtan area, based on the diagnostic results of ecological security of cultivated land resources in Chang-Zhuzhou-Xiangtan area. This paper introduces three protection models of cultivated land resources quantity protection, cultivated land resources quality protection and cultivated land ecological environment protection, according to the natural, economic and social conditions of cultivated land resources in Chang-Zhuzhou-Xiangtan area. The ecological agriculture model, cultivated land resources arrangement mode, cultivated land resources ecological restoration model and cultivated land resource environment management mode were designed in accordance with the development of ecological security of cultivated land resources in Changsha-Zhuzhou-Xiangtan area.
【学位授予单位】：湖南师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F323.211

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