郑州城市水系生态系统服务功能评价

发布时间：2018-02-16 15:06

本文关键词： 城市水系生态系统服务功能价值固碳释氧降温管理决策　出处：《郑州大学》2017年硕士论文　论文类型：学位论文

【摘要】：城市是人类赖以生存和发展的空间,受人类活动的强烈影响。而水作为一种特殊的资源,支撑着整个地球的生命系统,与城市发展息息相关,成为城市发展的命脉。城市水系生态系统不仅为人类生产生活提供了必不可少的水资源、鱼虾等水产品、水力发电、内陆航运,保障农林业的集水灌溉,还能涵养水源、调节气候、净化环境、调蓄洪水。此外,还具有休闲娱乐和生态旅游价值,成为城市经济和人类居住的生态基础。郑州城市水系河网不够完善、功能不够健全、水体污染严重、水体生态功能退化等问题十分突出。因此,开展郑州城市水系生态系统服务价值评估,不仅可以为水系规划和建设提供科学依据,也可以为促进良好人居环境的构建提供数据支撑,从而促进郑州社会经济的发展。论文在分析国内外相关生态系统服务概念、分类以及评估方法的基础上,以郑州市为研究对象,利用ArcGIS10.1、ENVI5.1软件,以1995年、2005年、2015年的遥感影像为基础,对郑州城市水系生态系统进行了分类,并对不同生态系统类型20年间的变化进行了统计分析;以郑州城市水系生态系统的产品提供功能、调节功能、支持功能和文化服务功能以及植被的固碳、释氧、降温功能为对象,基于2015年高分遥感图像,选择适合城市水系生态系统服务价值评估方法,构建城市水系生态系统服务价值评估的指标体系和评估模型,对2015年郑州城市水系生态系统服务价值进行了评估。研究结果表明,郑州城市水系生态系统服务功能价值为355.85亿元,其中,提供产品功能为7.26亿元,占比为2.04%;调节功能为45.87亿元,占比为12.89%;支持功能价值为28.6亿元,占比为8.04%;文化服务功能价值为267.61亿元,占比为75.20%;植被的固碳功能价值为2.69亿元,占比为0.76%;释氧功能价值为2.19亿元,占比为6.15%;降温功能价值为1.63亿元,占比为0.46%,这说明郑州城市水系生态系统服务功能主要体现在文化服务功能上。最后,根据生态系统服务功能评估,提出了改善郑州城市水系生态系统服务功能的对策,以期为改善郑州城市水系生态系统管理和推动郑州社会经济的发展提供理论基础和数据支持。
[Abstract]:As a special resource, water, as a special resource, supports the life system of the whole earth and is closely related to the development of the city. Urban water ecosystems not only provide essential water resources for human production and life, fish and shrimp, aquatic products, hydroelectricity, inland shipping, protection of agricultural and forestry water harvesting irrigation, but also water conservation. Regulating the climate, purifying the environment and regulating the flood. In addition, it has the value of recreation and ecotourism, and has become the ecological foundation of urban economy and human habitation. The river network of Zhengzhou city is not perfect, its function is not perfect enough, and the water body is polluted seriously. The degradation of ecological function of water body is very prominent. Therefore, the evaluation of ecosystem service value in Zhengzhou city water system can not only provide scientific basis for water system planning and construction. It can also provide data support for the construction of good habitat environment and promote the social and economic development of Zhengzhou. Based on the analysis of the concepts, classification and evaluation methods of ecosystem services at home and abroad, Based on the remote sensing images of 1995, 2005 and 2015, Zhengzhou urban water ecosystem was classified by using ArcGIS10.1 ENVI5.1 software, and the changes of different ecosystem types in 20 years were analyzed statistically. Taking the function of providing function, regulating function, supporting function and cultural service function of Zhengzhou urban water ecosystem as well as the carbon sequestration, oxygen releasing and cooling function of vegetation, based on the high score remote sensing image of 2015, The index system and evaluation model of urban water ecosystem service value evaluation are established by selecting the method of evaluating the ecosystem service value suitable for urban drainage system, and establishing the index system and evaluation model of the urban water system ecosystem service value evaluation. In 2015, the service value of Zhengzhou urban drainage ecosystem was evaluated. The results showed that the service value of Zhengzhou urban drainage ecosystem was thirty-five billion five hundred and eighty-five million yuan, of which, the value of providing products was 726 million yuan. The value of supporting function is 2.86 billion yuan, the proportion of supporting function is 8.04 yuan, the value of cultural service function is twenty-six billion seven hundred and sixty-one million yuan, the proportion is 75.20 yuan, the carbon sequestration function value of vegetation is 269 million yuan. The value of the function of releasing oxygen is 219 million yuan, the value of releasing oxygen is 6.15 yuan, the value of cooling function is 163 million yuan, the proportion is 0.46, which shows that the function of ecosystem service of Zhengzhou city water system is mainly embodied in the function of cultural service. Finally, According to the evaluation of ecosystem service function, this paper puts forward the countermeasures to improve the ecosystem service function of Zhengzhou urban water system, in order to provide theoretical basis and data support for improving the management of Zhengzhou urban water ecosystem and promoting the development of Zhengzhou's social economy.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F299.24;TV213.4

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