| 快速城市化背景下宁波北仑绿地系统演化及生态服务响应 |
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| 引用本文： | 何改丽 史小丽 李加林 冯佰香 黄日鹏.快速城市化背景下宁波北仑绿地系统演化及生态服务响应[J].宁波大学学报(理工版),2017,0(5):89-96. |
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| 作者姓名： | 何改丽 史小丽 李加林 冯佰香 黄日鹏 |
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| 作者单位： | 1.宁波大学 建筑工程与环境学院, 浙江 宁波 315211; 2.宁波大学 学报编辑部, 浙江 宁波 315211; 3.浙江省海洋文化与经济研究中心, 浙江 宁波 315211 |
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| 摘 要： | 城市绿地是城市自然生态系统的重要组成部分, 我国东南沿海地区是城市化速度最快的区域之一, 快速城市化导致建设用地的大量增加, 并引起区域绿地景观格局及生态价值的显著变化. 本文选取东南沿海中部的宁波市北仑区为研究区域, 以其1990、1995、2000、2005、2010和2015年6期土地利用变化数据为基础提取绿地, 借助ArcGIS和Fragstats软件, 应用景观生态学方法和基于专家知识的生态系统服务价值化方法对快速城市化背景下北仑区绿地景观动态演化及其生态价值变化进行了研究. 结果表明: (1)绿地是北仑区的主要景观类型, 1990~2015年间快速城市化导致北仑区1406hm2绿地转化为建设用地; (2)北仑区绿地景观异质性减弱, 趋于集中式发展, 整体破碎度降低; (3)截止2015年, 绿地的生态服务价值总量比1990年减少了6%, 生态环境出现恶化, 主要是建设用地占用绿地导致生态总价值下降; (4)北仑区绿地系统生态价值等级由中心向外围降低呈不规则环状, 且高价值区逐渐向东南方向减少并转变为较低价值区.
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| 关 键 词： | 建设用地 绿地景观格局 生态服务价值 破碎化 |
Dynamic changes of green space landscape and ecological value under the rapid urbanization in Beilun of Ningbo |
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| HE Gai-li,SHI Xiao-li,LI Jia-lin,' target="_blank" rel="external">,FENG Bai-xiang,HUANG Ri-peng.Dynamic changes of green space landscape and ecological value under the rapid urbanization in Beilun of Ningbo[J].Journal of Ningbo University(Natural Science and Engineering Edition),2017,0(5):89-96. |
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| Authors: | HE Gai-li SHI Xiao-li LI Jia-lin " target="_blank">' target="_blank" rel="external"> FENG Bai-xiang HUANG Ri-peng |
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| Affiliation: | 1.Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo 315211, China; 2.Editorial Department of Journal of Ningbo University, Ningbo 315211, China; 3.Marine Culture and Economic Research Center of Zhejiang Province, Ningb |
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| Abstract: | Urban green space is an important part of urban natural ecosystem. The southeast coastal area is one of the fastest developing urban areas in China, and rapid urbanization leads to a remarkable increase in construction land and a significant change in regional landscape patterns and landscape ecological values. Located in the southeast coast of China, Beilun is selected as the case-study area in this work. With ArcGIS and Fragstats software, and based on the land use data of 1990, 1995, 2000, 2005, 2010 and 2015, the dynamic evolution of green space landscape and its ecology value in the background of rapid urbanization are analyzed by applying landscape ecology method and expert knowledge-based ecosystem service evaluation method. Its main findings are as follows: 1) Green space is the main landscape in Beilun area, and the rapid urbanization is turning 1406 square kilometers green space to construction space. 2) The heterogeneity of the green space landscape declines in Beilun, manifesting the growing centralization and declining overall fragmentation; 3) In 2015, the landscape ecology service values of green space decreased by 6% comparing with 1990. The main reason for the decline lies in the green space occupied by construction land; 4) The ecology value of green space system is gradually changing from high value areas to low value areas by moving southeast. In the pattern of the irregular ring, the level of ecological value of green space system is going down from the center to the periphery. |
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| Keywords: | construction land green space landscape pattern ecology service value fragmentation |
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