基于生态脆弱性评价的龙山镇绿地系统布局研究

发布时间：2018-01-05 11:05

本文关键词：基于生态脆弱性评价的龙山镇绿地系统布局研究　出处：《浙江农林大学》2015年硕士论文　论文类型：学位论文

【摘要】：社会经济的不断发展为人类聚居的环境带来了沉重的负担,改善人居环境,进行生态建设已经成为了发展趋势。对区域的生态环境进行严谨科学的调查与分析评价,能够合理的针对生态环境的现状进行规划布局,有效的改善绿地斑块破碎化的程度,同时力求自然环境与人类社会的发展达到一种平衡的相依状态。本文以慈溪市龙山镇为研究对象,基于GIS和Fragstats的技术支撑,对龙山镇的生态环境进行脆弱性评价。本研究通过有针对性的实地调查,再结合研究区域的高空间遥感影像进行基础资料提取。依据所的提取资料,对龙山镇的景观格局现状进行研究分析,再通过定性与定量相结合的方法,基于空间主成分分析法构建指标评价体系的权重,本研究评价指标的选择则是从自然和人为两方面选取10个因子组成整个评价系统。对评价数据进行空间叠加,完成了龙山镇生态脆弱性相关评价,并得出了龙山镇的景观格局现状情况。并针对对评价结果结合龙山镇基础条件进行分级分析,然后再对评价结果进行可靠性检验。最后再基于上述分析结果,提出龙山镇规划布局设想,对龙山镇绿地系统布局提出合理规划的布局建议。研究结果表明:龙山镇的各种景观类型在分布和数量上都存在不均衡现象,城镇总体景观格局现状较为复杂。龙山镇生态脆弱性评价所得出结果表明:评价区域空间脆弱性总体一般,极强度和强度脆弱区范围主要划分在镇域中部建成区区域,微度和轻度脆弱则主要划分在城镇西南部丘陵区域。随着城镇化发展,人为活动和土地利用增加,将进一步加剧镇域中部生态脆弱性,对城镇生态环境质量有着显著影响。控制人口密度、增加森林植被面积、提高生态廊道连接性、及控制建设用地范围等措施将成为改善城镇生态脆弱性的主要途径。由此,本研究提出了龙山镇“一湖、两面、多网、多点”的绿地系统规划布局设想。本研究基于GIS技术平台,结合景观格局分析研究区现状条件,从定性和定量分析相结合,构建研究区进行生态脆弱性评价体系,为城镇的未来绿地系统布局方向以及龙山镇的生态环境建设提供科学依据和技术支持。
[Abstract]:The continuous development of social economy brings a heavy burden to the environment of human settlement and improves the living environment. Ecological construction has become a development trend. To carry out rigorous and scientific investigation and analysis and evaluation of the ecological environment of the region can reasonably plan for the current situation of the ecological environment. Effectively improve the degree of fragmentation of green patches, and strive to achieve a balance between the natural environment and the development of human society. This paper takes Longshan Town of Cixi City as the research object. Based on the technical support of GIS and Fragstats, the vulnerability assessment of ecological environment in Longshan Town was carried out. Combined with the high-spatial remote sensing image of the research area to extract the basic data. According to the extracted data, the landscape pattern of Longshan Town is analyzed, and then the qualitative and quantitative methods are used. The weight of index evaluation system is constructed based on spatial principal component analysis. The evaluation index of this study is to select 10 factors from both natural and human aspects to form the whole evaluation system. The evaluation data are superimposed in space to complete the ecological vulnerability assessment of Longshan Town. And obtained the present situation of landscape pattern of Longshan Town, and based on the evaluation results combined with the basic conditions of Longshan Township for grading analysis, and then the evaluation results of reliability test. Finally, based on the above analysis results. The planning and layout of Longshan Town is put forward, and the rational layout suggestion is put forward. The results show that the distribution and quantity of various landscape types of Longshan Town are not balanced. The result of ecological vulnerability evaluation of Longshan Town shows that the evaluation of regional spatial vulnerability is general. The range of extreme intensity and intensity fragile area is mainly divided into the central part of the town area, while the slight and slightly fragile area is mainly divided into the southwest hilly area of the town. With the development of urbanization, human activities and land use increase. It will further aggravate the ecological fragility in the central part of town area and have a significant impact on the quality of urban ecological environment, control population density, increase the area of forest vegetation, and improve the connectivity of ecological corridors. And control the scope of construction land and other measures will become the main way to improve the ecological vulnerability of towns. Therefore, this study proposed the Longshan Town "one lake, two sides, multiple networks". This study is based on the GIS technology platform, combined with the landscape pattern analysis of the status quo conditions of the study area, from qualitative and quantitative analysis. In order to provide scientific basis and technical support for the future distribution direction of green space system and ecological environment construction of Longshan Town, the ecological vulnerability assessment system in the research area is constructed.
【学位授予单位】：浙江农林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU985;X826

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