红树林景观格局遥感提取的尺度效应  

Scale Effect on Landscape Pattern of Mangrove Forests Mapped with Remote Sensing

作　　者：刘会增[1,2,3,4] 刘珏 石铁柱 王俊杰[1,2,3] 邬国锋 

机构地区：[1]海岸带地理环境监测国家测绘地理信息局重点实验室,深圳518060 [2]空间信息智能感知与服务深圳市重点实验室,深圳518060 [3]深圳大学生命与海洋科学学院,深圳518060 [4]香港浸会大学地理系,香港999077 [5]国营北海防护林场,广西北海536000 [6]武汉大学资源与环境科学学院,武汉430079

出　　处：《遥感信息》2017年第5期44-51,共8页Remote Sensing Information

基　　金：林业公益性行业科研专项(201404305)

摘　　要：针对多观测尺度下提取的红树林难以直接比较、转换和整合的问题,利用多源遥感数据研究红树林遥感提取的尺度效应。基于资源三号影像,采用重采样方法模拟多尺度遥感数据,结合景观格局指数和统计方法探究红树林景观格局遥感提取的尺度效应。研究表明:随着遥感影像空间分辨率的降低,红树林斑块会出现位移和变形;在不同尺度下提取的红树林景观指数呈现一定的变化规律,采用线性、多项式或对数模型能够很好地拟合景观指数随尺度的变化(R^2≥0.94);模型能够很好地预测高分一号影像和Landsat-8影像提取的红树林景观指数。Mangrove maps derived from multiple-scale data cannot be compared, transformed or integrated directly. This study targeted at investigating the scale effect of mangrove forests mapped with multi-source remote sensing data. A series of multi-scale images by resampling a ZY-3 image were used to study this phenomenon by means of landscape pattern analyses. Results show that：with the decreasing of spatial resolution, mangrove forest patches tend to move and deform; the landscape indices of mangrove patches extracted under different scales differ, but their values show certain patterns, and they could be fitted accurately with either linear, polynomial or logarithmic models （R2 ≥0.94） ;these models are suitable for landscape indices of mangrove maps derived from GF-1 image and Landsat-8 images.

关 键 词：红树林 尺度效应 景观格局 景观指数 多源遥感 

分 类 号：P771.8[天文地球—海洋科学]