快速城市化地区景观格局时空演变研究——以长株潭城市群核心区为例

发布时间：2018-03-19 10:50

本文选题：快速城市化　切入点：景观格局时空演变　出处：《海峡科学》2015年11期 　论文类型：期刊论文

【摘要】：根据2000年和2010年长株潭城市群核心区TM遥感影像解译数据,进行景观分类和景观格局指数选取,采用移动窗口、梯度分析方法,揭示十年间研究区景观格局时空演变特征。结果表明:农田景观为基质景观,其它景观为镶嵌体景观,景观类型转移呈现出林地和灌丛向农田和城镇转化,农田向城镇转化的过程;从景观指数的空间分布来看,最大斑块指数高低值呈南北分散分布,景观形状指数和斑块密度低值在城市中心,高值主要在城市边缘,香农多样性指数高值沿湘江呈带状分布,上述指数十年间变化主要发生在城市周围;通过景观格局指数梯度分析得知,各景观格局指数具有明显的梯度效应,十年来城市中心及边缘变化较大,城乡结合部基本保持稳定。
[Abstract]:According to the TM remote sensing image interpretation data of the core area of Changsha-Zhuzhou-Xiangtan urban agglomeration in 2000 and 2010, the landscape classification and landscape pattern index were selected, and the moving window and gradient analysis method were used. The results showed that the farmland landscape was the matrix landscape, the other landscape was mosaic landscape, and the change of landscape type showed the transformation of forest land and shrub to farmland and town. From the spatial distribution of landscape index, the maximum patch index was distributed in the north and south, the landscape shape index and patch density were low in the center of the city, and the high value was mainly in the urban edge. The high value of Shannon diversity index is zonal distribution along the Xiangjiang River, and the change of the above index mainly occurs around the city during the past decade, and through the analysis of landscape pattern index gradient, it can be concluded that each landscape pattern index has obvious gradient effect. Over the past ten years, urban centers and edges have changed greatly, and urban and rural areas have remained basically stable.
【作者单位】：福建师范大学地理科学学院;湖南科技大学地理空间信息技术国家地方联合工程实验室;
【基金】：福建省自然科学基金项目(2014J01152) 福建省科技厅公益类项目(K3-300) 福建省教育厅项目(JB12036)
【分类号】：TU982.2;P901

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