基于滩涂围垦的海岛城市时空扩张特征研究——以舟山本岛为例

发布时间：2017-12-31 20:28

本文关键词：基于滩涂围垦的海岛城市时空扩张特征研究——以舟山本岛为例　出处：《海洋学研究》2017年02期 　论文类型：期刊论文

【摘要】：以舟山本岛为研究单元,利用1995年,2005年和2015年的遥感影像,采用生态学分析、空间统计学分析、城市扩张指数等方法来探究舟山本岛滩涂围垦活动和城市用地扩张的特点,并分析两者之间的关联。结果表明:(1)在1995—2015年的20a间,滩涂围垦的面积不断扩大。(2)1995—2005年的滩涂资源利用以近陆域的海涂为主,2005—2015年逐渐向浅海发展。(3)1995—2015年间,城市用地面积前10a增长强度为0.53,增长速度为3.01km~2/a,后10a增长强度为1.46,增长速度为8.11km~2/a。(4)舟山本岛的城市发展重心在20a间经历了一个自西向东移动而后向北跳跃的过程,各区域间协同发展,使舟山本岛经济整体性和城市功能合理性得到提升。(5)滩涂围垦形成的土地与城市用地扩张之间存在着正相关关系,且从研究数据来看两者之间发生自然演替需要时间,大约为8~10a,人工干预可以大幅缩短这个过程所需要的时间。
[Abstract]:Taking Zhoushan Island as the research unit, using remote sensing images from 1995, 2005 and 2015, ecological analysis and spatial statistical analysis were used. The urban expansion index is used to explore the characteristics of reclamation activities and urban land expansion in Zhoushan, and the relationship between them is analyzed. The results show that the proportion of 1) is 20 years from 1995 to 2015. The area of tidal flat reclamation continues to expand. The use of tidal flat resources from 1995 to 2005 is dominated by coastal land near the land. From 2005 to 2015, the urban land area increased by 0.53 in the first 10 years, and the growth rate was 3.01 km2 / a between 1995 and 2015. In the last 10 years, the growth intensity was 1.46, and the growth rate was 8.11km2 / a.f.) the urban development center of Zhoushan Island experienced a process of moving from west to east and jumping from west to north in 20 years. The coordinated development of different regions has promoted the economic integrity and the rationality of urban function of Zhoushan. 5) there is a positive correlation between the land formed by the tidal flat reclamation and the urban land expansion. According to the data of the study, it takes about 810a for the natural succession between the two. Artificial intervention can significantly shorten the time required for this process.
【作者单位】：宁波大学地理与空间信息技术系;浙江省海洋文化与经济研究中心;
【基金】：浙江省社会科学重点研究基地2015年度省社科规划项目资助(15JDHY01YB)
【分类号】：P748;P756.8
【正文快照】： Doi:10.3969/j.issn.1001-909X.2017.02.0070引言目前世界上已经有超过一半的人口生活在城市范围内[1],而海岸带是目前世界上,包括中国在内城市最为集中的地区[2-3]。作为海岸带的特殊组成,海岛是指四周被海水包围,高潮时露出海面的陆地[4]。由于自然环境和自然资源的有限性以

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