南昌市都市农业示范点的空间分布特征研究

A Study on Spatial Distribution Features of the Key Urban Agriculture Demonstration Sites in Nanchang

都市农业的发展对城市的发展具有重大的推动作用,成为近年来研究的一个热点课题。都市农业具有一定的空间分异规律,分析其空间分布特征,并进行布局的构想,有助于都市农业合理有序的发展。以南昌市百个重点都市农业示范点为研究对象,基于GIS技术,用最邻近点指数判别都市农业示范点在地理空间中的分布形态,并采用测算voronoi多边形的面积变异系数的方法进检验;用地理集中指数、不均衡指数、基尼指数、与消费市场之间的联系等方法分析了都市农业示范点的县域分布特征。研究表明,南昌市百个重点都市农业示范点在空间上呈现凝聚的分布状态。根据南昌市实际情况,对南昌市都市农业进行功能定位,并提出三圈发展的构想。

Development of urban agriculture plays a significant role in promoting development of citys’ ,it has become a hot research topic in recent years.Urban agriculture has certain spatial distribution rules,analysis of the space distribution features,and idea of its layout,help a lot in reasonable and orderly development of urban agriculture.Taking a hundred key demonstration pilot projects of urban agriculture in Nanchang City as the research object,based on GIS technology,the adjacent point index was used in judging urban agriculture demonstration site in the form of distribution in geographical space,and the method of measuring voronoi polygon area variation coefficient was adopted in the inspection;with geographic concentration index,uneven index and gini index and the relationship to the tourist market the regional distribution characteristics of urban agriculture demonstration sites were analyzed.Studies have shown that the hundred key demonstration pilot projects of urban agriculture in Nanchang City present a condensed state in space. According to the actual circumstance of Nanchang City,the function orientation is proposed,and the idea of three circle development is put forward for the urban agriculture in Nanchang City.