沈抚“同城区”生态空间遥感自动识别及动态检测研究

Research on Automatic Recognition and Dynamic Detection of Ecological Space Remote Sensing in the Urban Area of Shenfu

以辽宁省沈抚新城区为研究对象,选择2006、2010及2014年Landsat影像为数据源,利用面向对象方法提取城市生态空间信息,并对研究区内的景观格局动态特征和多方向变化特征进行了相关计算和分析。结果表明:1)多方向变化分析研究区南部城市增长最多,沈抚新城发展中抚顺区域推进较快,不断向沈阳方向发展;2)绿地整体的增加和城市建筑增加呈显著正相关,沈抚新城生态空间结构逐渐靠拢,并向着规划中的打造浑河景观带的目标努力;3)2006~2014年期间,平均斑块面积和最大斑块指数呈增加趋势,散布与并列指数和蔓延度指数逐年递减,说明沈抚同城化过程中景观具有均衡性和规划性。

In this study, Shenyang as the centre city in Liaoning province is facing the challenges and opportunity during the city ex- pansion, Shenyang - Fushun new district of Liaoning province was selected as the study area. The Landsat images with 30 spatial reso- lution acquired in 2006, 2010 and 2014 were used. Then, the urban ecology spatial information such as the urban area and urban green space area is extracted by the object - oriented method. Furthermore, the relative calculation and analysis of landscape pattern dynamic characteristics and multi - directional change features in the study region are processed. The results show that ： 1 ） The Fushun area remains the focus of total urban area increasing, the part of Fushun had constantly developed in direction of Shenyang with a high- er speed; 2） The increase of urban green space and urban is positively and very significantly correlation, which suggested that the ur- ban ecological spatial structure of Shenyang - Fushun had drew closer gradually, and the Hunhe landscape belt will be built flowing the planning;3） The average patch area and the largest patch index make increasing trend, the distribution -parallel and spread degrees index make decreasing year by year, which suggested that Shenyang -Fushun is uniform and planning.