鄱阳湖地区城镇化和土地生态环境耦合关系研究

发布时间：2018-06-04 15:44

本文选题：鄱阳湖地区 + 生态环境　；参考：《江西农业大学》2015年硕士论文

【摘要】：在区域城镇化水平快速发展的进程中,人口和城镇用地面积的不断膨胀导致了区域土地利用的空间景观格局、生物丰度指数空间格局、NDVI指数格局也随之发生了巨大的变化。这一系列变化不断扩大对生态系统的压力,致使生态系统的空间格局和功能直接地或间接地发生变化,最终导致土地生态系统服务价值也随之产生相应地变化。而土地生态环境是人类生存和发展最基础的物质承载,当土地生态环境恶化到一定程度将会限制区域的发展。在追求区域可持续发展的今天,探索城镇化与生态环境二者之间的互动关系和协调发展性显得尤其重要,对于指导城镇规划和区域可持续发展具有十分重要的意义。鄱阳湖地区无论是经济密度,人口密度还是生态承载力都在江西省排行第一。目前鄱阳湖地区的城镇化发展水平相对落后,但是努力实现壮大自身发展,后发赶超的决心是坚定的。本文以鄱阳湖地区为研究,以社会经济统计数据和遥感影像解译数据为基础,结合数理统计模型方法和3S技术,应用鄱阳湖地区24个县区的面板数据,具体分析鄱阳湖地区2000-2013年城镇化和生态环境的时空演变特征。然后在此基础上运用耦合度函数、功效函数和耦合协调度等评价模型定量分析各县区的城镇化与生态环境耦合协调发展情况,并根据评价结果提出有效的调控对策。(1)2000到2013年以来鄱阳湖地区和各县区的城镇化综合水平指数随着时间的推移不断地上升,表明鄱阳湖地区各县区的城镇化正向高城镇化水平过渡;第二,从2000到2013年鄱阳湖地区城镇化综合发展水平指数无论是相邻的县区之间、南北地区之间、东西地区之间都存在具有明显的空间差异特征。由于鄱阳湖地区自身地形地貌、水系、交通条件等因素的影响,城镇化综合发展水平总体不高,呈现由西南向西北递减的空间布局,特别西北边远的县区。(2)2000到2013年鄱阳湖地区各县区的生态环境综合水平指数总体呈下滑趋势,其中2000到2005年各县区的生态环境综合水平指数呈现下降趋势,2005年以后又呈现缓慢上升的波动变化趋势,且2005年后的增长速度小于2000年至2005年期间下降的速度。(3)从2000年到2013年,鄱阳湖地区24个县区的生态环境和城镇化耦合度评价指数总体呈现小幅度上升的趋势,但是个别年份个别县市有下滑的现象。鄱阳湖地区城镇化和生态环境两者之间的耦合度指数在0.3956-0.5000之间波动,即鄱阳湖地区各县区的城镇化与生态环境处于“拮抗阶段”,此时期城镇化对生态环境造成了一定程度的破坏,逐渐削弱生态自然承载力。(4)从耦合协调发展类型看,鄱阳湖地区各县区2000-2013年正渐渐从轻度失调类型向濒临失调类型发展,2000年鄱阳湖地区24个县区中除了九江市区处于勉强协调,德安县、都昌县、抚州市区、南昌县和永修县处于濒临协调发展类型之外,剩余的18个县区都处于轻度协调发展类型。而2005以后随着城镇化的快速发展和生态环境的小幅度改善,各县区城镇化和生态环境耦合协调度值呈现明显的上升趋势,耦合协调发展类型也有着明显的改善,2010年濒临协调发展类型增加至13个,勉强协调发展类型1个;2013年勉强协调发展类型增加至2个,濒临协调发展类型增加至16个。
[Abstract]:In the process of the rapid development of regional urbanization level, the expansion of the area of population and urban land has led to the spatial landscape pattern of regional land use, the spatial pattern of biological abundance index and the NDVI index pattern, which has greatly increased the pressure of the ecosystem and resulted in the ecosystem. The spatial pattern and function change directly or indirectly, which eventually leads to the corresponding change in the value of the land ecosystem services. The land ecological environment is the most basic material carrying material for human survival and development. When the land ecological environment deteriorates to a certain extent, it will limit the development of the region. In pursuit of regional sustainable development, the land ecological environment will be sustainable development. Today, it is particularly important to explore the interaction and coordinated development between the two people of urbanization and the ecological environment. It is of great significance for guiding the urban planning and regional sustainable development. Poyang Lake area is the first in Jiangxi Province, whether it is economic density, population density or ecological carrying capacity. At present, the Poyang Lake region The development level of urbanization is relatively backward, but the determination to develop itself is firm. This paper, based on the Poyang Lake region as the research, based on the social and economic statistics and the remote sensing image interpretation data, combined with the mathematical statistics model method and 3S technology, applied the panel data of 24 counties in Poyang Lake area. The spatio-temporal evolution characteristics of urbanization and ecological environment in the 2000-2013 years of Poyang Lake are analyzed. On this basis, the coupling degree function, function function and coupling coordination degree are used to quantitatively analyze the coordinated development of urbanization and ecological environment in each county, and the effective control measures are put forward according to the evaluation results. (1) 2000 Since 2013, the comprehensive level index of urbanization in Poyang Lake area and county area has been rising continuously with time, which indicates that the urbanization of each county in Poyang Lake is transition to high urbanization level. Second, from 2000 to 2013, the comprehensive development level index of urbanization in Poyang Lake region is between the neighboring counties and the north and South regions. Between the East and the west, there are obvious spatial differences between the East and the West. The overall development level of urbanization in Poyang Lake is not high because of its own topography, water system and traffic conditions. It presents a spatial distribution from the southwest to the northwest, especially in the West and North. (2) from 2000 to 2013, each county in Poyang Lake region. The overall level index of the ecological environment of the region was in general downward trend, among which the ecological environment comprehensive index of the counties in 2000 to 2005 showed a downward trend, and the trend of the fluctuation was slowly rising after 2005, and the rate of growth after 2005 was less than that between 2000 and 2005. (3) from 2000 to 2013, Poyang The evaluation index of ecological environment and urbanization coupling degree of 24 counties in the lake area showed a trend of small increase, but there was a decline in individual counties and cities. The coupling index between urbanization and ecological environment in Poyang Lake region fluctuated between 0.3956-0.5000, namely the urbanization and birth of each county in Poyang Lake area. The state environment is in the "antagonistic stage". In this period, urbanization has caused a certain degree of destruction to the ecological environment and gradually weakened the ecological natural bearing capacity. (4) from the view of the type of coordinated development, the 2000-2013 years in the counties of Poyang Lake are gradually developing from the mild maladjustment type to the endangered type, and in the 24 counties of Poyang Lake in 2000. In Jiujiang, the urban areas are in a reluctance to coordinate, and the 18 counties in the remaining 18 counties are in a mild coordinated development type in addition to the coordinated development type in de an County, Duchang County, Fuzhou City, Nanchang County and Yongxiu county. After 2005, the urbanization and ecological environment coupling coordination in each county area along with the rapid development of urbanization and the small improvement in the ecological environment. The dispatching value showed a significant upward trend, and the type of coordinated development also improved obviously. In 2010, the type of coordinated development increased to 13, and the type of coordinated development was 1. In 2013, the type of coordinated development increased to 2, and the type of coordinated development was on the verge of 16.
【学位授予单位】：江西农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F299.27;X22

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