焦作市绿色廊道景观组成与格局分析
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2011年度教育部人文社会科学研究项目(青年基金)“生态视角下中小型城市绿地减灾避难体系研究”(11YJCZH030);河南理工大学校内青年基金(Q2011-30);2010年度中国煤炭工业协会科学技术研究指导性计划项目(MTKJ2010-393)


Landscape Structure and Pattern of Green Corridors in Jiaozuo City
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    摘要:

    绿色廊道是城市生态体系的重要组成部分,在城市空间分隔,维持景观格局稳定,促进物质能量的迁移和更新等方面发挥着重要的作用。以焦作市为例,在对绿色廊道分类、归纳的基础上,利用ENVI 4.5结合ArcGIS 9.2软件对焦作市遥感影像进行了处理,并结合实地调查对绿色廊道结构与体系进行了分析评价。结果表明,焦作市的绿色道路、河流和绿带廊道分别为24,7和2条。城区绿色廊道表现为群落结构简单,物种单一,建设率低;部分水系和道路为裸露的混凝土阶地,城区绿色廊道密度为2.86,绿色廊道建设率为0.48,网络交点为65个,连通度为0.17;焦作市绿色廊道密度、建设率和连通度等指标过低,整体上处于不合理和不健康的状态。未来绿色廊道建设除了加大绿色廊道长度、宽度,提高绿带的比例外,应重点加强各廊道间的生态联系;构建以绿带廊道为导向,"三横五纵"绿色河流廊道为骨架、绿色道路廊道为网络的绿廊体系。

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    Green corridor is an important part of urban ecological system,which maintains the stability oflandscape and promotes the exchanges and updates of material and energy.The green corridors of JiaozuoCity were selected as the study objects and their landscape characteristics were analyzed,classified and summarized based on data form field survey and satellite images using ENVI 4.5and ArcGIS 9.2software.Theresults showed that the numbers of green road,river and belt corridors in the city were 24,7and 2,respectively.The features of green corridors were composed of simple community structure and species with lowconstruction ratio.Parts of streams and roads were bare or built using concrete,with low density,construction ratio and connectivity.The density of urban green corridor was 2.86,the construction ratio of green corridor was 0.48,the node of network was 65and the connectivity degree was 0.17,respectively.The greencorridor of the city was in a unreasonable and unhealthy state.The future construction of green corridorshould increase the proportion of green belt,and the length and width of green corridor.Ecological contact ofgreen corridors system should be strengthened with green belts as connection,three horizontal and five longitudinal green river corridor as frame,and green road corridor as network.

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佟艳,樊良新,梁彦兰.焦作市绿色廊道景观组成与格局分析[J].水土保持通报,2013,(2):291-295

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  • 收稿日期:2012-02-11
  • 最后修改日期:2012-06-01
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  • 在线发布日期: 2014-11-12
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