樊超,桂峰,赵晟.海岛城镇空间扩展及景观生态演变研究———以舟山为例[J].海洋通报,2019,(4):447-454
海岛城镇空间扩展及景观生态演变研究———以舟山为例
Spatial characteristics of island urban expansion and landscape ecological evolution院 a case of the Zhoushan Island
投稿时间:2018-10-18  修订日期:2018-12-26
DOI:10.11840/j.issn.1001-6392.2019.04.011
中文关键词:  城镇扩展  舟山本岛  空间特征  景观生态
英文关键词:urban expansion  Zhoushan Island  spatial characteristics  landscape ecology
基金项目:“全球变化”国家重点研发计划 (2017YFA0604902)
作者单位E-mail
樊超 浙江海洋大学 海洋科学与技术学院浙江 舟山 316022 bjdxbn@163.com 
桂峰 浙江海洋大学 海洋科学与技术学院浙江 舟山 316022 fgui@zjou.edu.cn 
赵晟 浙江海洋大学 海洋科学与技术学院浙江 舟山 316022  
摘要点击次数: 25
全文下载次数: 30
中文摘要:
      本文以舟山本岛为研究对象,通过 7 景 Landsat 系列遥感影像,获取了 1985-2015 年 7 个时期内的 5 种地物信息。在此基础上,引入 4 个空间分析指标,分析了城镇扩展方位特征、城镇扩展强度及扩展速度特征、景观格局变化特征,并对影响城镇扩展的自然环境因素进行空间分析,对社会经济因素进行相关性分析。结果表明: (1) 舟山本岛城镇扩展在空间方位上呈现“串珠状”的非典型蔓延特征,且在本岛第四象限扩展最显著; (2) 城镇空间扩展可划分为三个阶段:城镇雏形阶段 (1985-1995 年)、城镇生长阶段 (1995-2010 年) 及城镇成熟阶段 (2010-2015 年); (3) 城镇雏形阶段,城镇“向中部绿心”扩展,岛陆森林面积减少了 10.34 km2;城镇生长阶段,城镇“向海”扩展,25.10 km2周边海域经围垦转变为耕地及建设用地;城镇成熟阶段,城镇扩展“向海”与“向中部绿心”并存,对海岛生态系统陆海两侧均造成压力; (4) 城镇空间扩展的空间指向主要位于海拔 20 m 以下,坡度 10?以下的山谷、沿岸平原及围垦区。本岛人口数、房地产投入、GDP总量及路网总长等因素与城镇扩展相关性最显著.
英文摘要:
      The Zhoushan Island was selected as the study area in this paper. Five landscape types were gained from seven Landsat series remote sensing images from 1985 to 2015. Four spatial analysis indicators were introduced to analyze the urban expansion characteristics of orientation, intensity, speed and the characteristics of landscape changing. Then, the natural factors were analyzed in method of spatial analysis and socioeconomic factors were analyzed in method of correlation analysis, which all have relevance to urban expansion. The results show that: ( 1) The urban expansion of the Zhoushan Island present the spatial characteristic of beaded shape with the most significant orientation in fourth quadrant. (2) There are three phases in urban expansion: the phase of urban birth (1985-1995) , the phase of urban growth (1995-2010) and the phase of urban maturity (2010 -2015) . ( 3) In the phase of urban birth, the orientation of urban expansion is the regional area of forest, which leads a 10.33 km2 decreasing in forests area. In the phase of urban growth, the orientation of urban expansion is the regional area of offshore ocean. The offshore ocean has been converted into cultivated land and construction land with the area of 25.10 km2. In the phase of urban maturity, the orientations of urban expansion are on both offshore ocean and to the central forest region, which make the pressure on both land and ocean. (4) The region of urban expansion are mainly located in valleys, coastal plains and reclamation areas, in which elevation less than 20 m and slope less than 10?. At the same time, the population, real estate investment, GDP and total length of road network have significant correlation with urban expansion.
查看全文    下载PDF阅读器
关闭