测绘通报 ›› 2018, Vol. 0 ›› Issue (11): 36-39.doi: 10.13474/j.cnki.11-2246.2018.0346

• 学术研究 • 上一篇    下一篇

结合均匀度理论和Moran's I指数、广义G指数的景观格局全局自相关分析

张玉娟1,2, 曲建光2, 王强2, 李丹2   

  1. 1. 黑龙江工程学院哈尔滨测量高等专科学校测量工程公司, 黑龙江 哈尔滨 150050;
    2. 黑龙江工程学院测绘工程学院, 黑龙江 哈尔滨 150050
  • 收稿日期:2018-04-27 修回日期:2018-06-13 出版日期:2018-11-25 发布日期:2018-11-29
  • 作者简介:张玉娟(1979-),女,博士,副教授,主要研究方向为遥感数据监测分析。E-mail:zyjamy@126.com
  • 基金资助:

    国家自然科学基金(41701198);黑龙江工程学院博士科研启动基金(2017BJ03)

Global Autocorrelation Analysis of Landscape Pattern Based on Uniformity Theory, Moran's I and General G-statistic

ZHANG Yujuan1,2, QU Jianguang2, WANG Qiang2, LI Dan2   

  1. 1. Engineering Company of Harbin Measuring College, Heilongjiang Institute of Technology, Harbin 150050, China;
    2. Surveying and Mapping Institute, Heilongjiang Institute of Technology, Harbin 150050, China
  • Received:2018-04-27 Revised:2018-06-13 Online:2018-11-25 Published:2018-11-29

摘要:

以塔子沟林场为研究区域,以1997年8月28日和2009年8月25日两期Landsat TM遥感影像为主要数据源,辅助大量非遥感数据,借助ENVI 5.1、ArcGIS 10.3和Geoda095i等软件,将均匀度理论分析方法引入到景观格局空间相关分析中,对研究区域景观格局全局自相关进行了分析,并与Moran's I、广义G指数的分析方法获得结论进行了对比。经计算,1997年的景观格局均匀度为0.320 7,介于景观均匀度置信区间[0.297 2,0.339 7],景观格局判定为随机分布,2009年的景观格局均匀度为0.288 3,小于下限值0.296 9,景观格局判定为聚集分布。1997年Moran's I值为-0.11,景观格局判定为分散分布,2009年Moran's I值为0.42,景观格局判定为聚集分布。1997年研究区域Z Score值为0.92,2009年研究区域Z Score值为2.06,根据景观格局判别可知,2009年研究区域景观格局呈现出明显的高值空间聚集(H-H聚集),即该期景观格局为聚集分布。结果表明3种分析方法得到的结论相同,即从1997—2009年的12年间,研究区域的格局状况由随机格局到聚集格局变化,说明将均匀度理论分析方法引入到景观格局空间相关分析中是可行的。

关键词: 景观格局, 均匀度, Moran's I, 广义G指数, 全局自相关

Abstract:

In this paper, taking Tazi Gou forest farm as the research area, taking the two phase Landsat TM images of 1997 and 2009 as the main data source, with the help of ENVI 5.1, ArcGIS 10.3 and Geoda095i, the uniformity theory analysis method is introduced into the spatial correlation analysis of landscape pattern to analyze the global autocorrelation of the study area landscape pattern. The conclusion is compared with the analysis method of Moran's I and General G-statistic. In 1997, the uniformity of landscape pattern is 0.320 7, which is between the lower limit 0.297 2 and the upper limit 0.339 7, the coefficient of Moran's I is -0.11 and the value of Z Score is 0.92, it shows the pattern of the study area is random pattern. In 2009, the uniformity of landscape pattern is 0.288 3, which is less than the lower limit value 0.296 9, the coefficient of Moran's I is 0.42 and the value of Z Score is 2.06, it shows the pattern of the study area is aggregated pattern. The same conclusion is drawn from the three methods, that is, from 1997 to 2009, the pattern of the study area changed from random pattern to aggregated pattern in the 12 years.

Key words: landscape pattern, uniformity theory, Moran's I, General G-statistic, global autocorrelation

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