文章摘要
李斯颖.基于最短距离分析的南昌城区河流空间可达性初探[J].江西水利科技,2017,(4):254-257
基于最短距离分析的南昌城区河流空间可达性初探
A preliminary study on spatial accessibility of Nanchang urban rivers based on nearest distance analysis
  
DOI:
中文关键词: 可达性分析评价  城市河流可达性  最短距离分析  空间分析
英文关键词: Accessibility analysis  Urban river accessibility  The nearest distance analysis  Spatial analysis
基金项目:
作者单位
李斯颖 江西省水利科学研究院 
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中文摘要:
      南昌市地处长江中下游平原,水系密布,水资源丰富.城市河流作为生态和景观的重要因素,能否方便快捷的为城市居民服务,是城市可持续发展的重要指标.本文通过综述国内外已有各领域可达性研究,介绍可达性研究方法,同时尝试将可达性分析应用于城市河流,以南昌市城区为研究对象,运用ArcGIS空间分析中的最短距离方法,将南昌市城区网格化,分别针对南昌城区主要河流(赣江、抚河)以及南昌城区整体河流,计算每个网格点到河流的欧式距离,以最短距离为指标对各个网格的河流空间可达性进行分级,并按照行政区划,分析比较评价各个区域在空间上到达河流水域的便利程度.
英文摘要:
      Nanchang is located in the middle-downstream Yangtze plains,with dense water system and abundant water resources.As an important factor of ecology and landscape,how does urban river can serve urban residents conveniently and quickly is an important index of urban sustainable development.This paper summarizes the domestic and foreign research on accessibility in various fields,introduces the research methods of accessibility.Also this paper attempts to use accessibility analysis applied to the city river in Nanchang city,using the nearest distance method of ArcGIS spatial analysis,based on the grid of Nanchang city,respectively aim at the main rivers in Nanchang city(the Ganjiang River,Fu River)and the whole river system in Nanchang city,evaluate the accessibility level,and in accordance with the administrative division,compared the convenience of each area to reach water system in space.
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