国家级新区建设用地扩展的景观格局特征分析——以重庆市两江新区为例

发布时间：2018-10-12 13:39

【摘要】：以重庆两江新区为国家级新区的典型案例区,运用地理信息系统(GIS)分析和景观生态学方法,描述两江新区景观镶嵌体水平的格局特征,重点从两江新区建设用地景观镶嵌体水平及建设用地单一景观要素水平2个层面测算景观指数,分析建设用地扩展的景观效应。结果表明,两江新区整体景观形状趋于规则,斑块连通度提高,景观聚集程度增加,由于建设用地的扩张,景观类型呈单一化的趋势,全区景观趋于大集中小分散;全区建设用地景观形状变得规则,破碎度降低,连通度和优势度增加,聚集程度增强;两江新区城镇景观聚集度减少,扩张呈现破碎和不规则状态,农村居民点破碎严重,形状不规则,连通性也较低。基于此,两江新区的发展应体现出山城特色,重视山城特有的城市形态和结构形式,充分发挥"组团式"布局的作用,利用科学的规划引导建设用地的开发,维护自然生态格局。
[Abstract]:Taking the Liangjiang New area of Chongqing as a typical case of the state-level new area, this paper describes the pattern characteristics of landscape mosaic level in Liangjiang New area by using (GIS) analysis and landscape ecology method. The landscape index was calculated from two aspects of landscape mosaic level of construction land and single landscape element level of construction land in Liangjiang New area, and the landscape effect of construction land expansion was analyzed. The results showed that the overall landscape shape of the new area tended to be regular, the patch connectivity increased, and the landscape aggregation degree increased. Because of the expansion of construction land, the landscape type showed a single trend, and the whole area landscape tended to be large, concentrated and scattered. The landscape shape of construction land in the whole area became regular, the degree of fragmentation decreased, the degree of connectivity and dominance increased, the degree of aggregation of urban landscape increased, and the degree of urban landscape aggregation decreased, the expansion presented a state of fragmentation and irregularity, and the rural residential areas were badly broken. Irregular shape and low connectivity. Based on this, the development of the new area of the two rivers should embody the characteristics of the mountain city, attach importance to the unique urban form and structure of the mountain city, give full play to the role of "group type" layout, and use scientific planning to guide the development of the construction land. Maintain the natural ecological pattern.
【作者单位】：贵州财经大学公管学院;广东中地土地房地产评估与规划设计有限公司;
【基金】：国土资源部公益性行业科研专项(编号:201311006)
【分类号】：F301.2;TU984

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