Acta Scientiarum Naturalium Universitatis Pekinensis

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Experimental Research of Spatial Resolution Effects for Landscape Pattern
A Case Study of the Eastern Part in Zhujiang Delta

ZENG Hui, GUO Qinghua, LIU Xiaodong   

  1. Department of Urban And Environmental Sciences, Peking University, Beijing, 100871
  • Received:1997-07-15 Online:1998-11-20 Published:1998-11-20


曾辉, 郭庆华, 刘晓东   

  1. 北京大学城市与环境学系,北京,100871

Abstract: 6 periods of landscape type maps based on remotely sensed data were used for a 324km2 region in the eastern part of Zhujiang delta, to carry out a computer supporting experiment study of spatial resolution effects for landscape pattern. 6 experimental conditions were designed which are 30, 60, 120, 240, 480, and 960m. The results demonstrated that: (1) the landscape pattern of study area changed significantly coincided with the decreasing of resolution; (2) patch number, patch perimeter, total landscape fragmentation index FN1, andtwo shape indexes (S1 and S2) are sensitive pattern indices to resolution, but patch areaproportion, diversity, dominance, and element fragmentation index FN2 are weakly sensitivepattern indices to resolution; (3) the resolution of fine scale landscape pattern study in study area should be lower than 60m, and that of coarse scale study should be higher than 240m.

Key words: landscape pattern, scale, resolution, Zhujiang delta

摘要: 利用珠江三角洲东部一块324km2区域的6个时段的景观遥感类型图,进行机助景观格局空间分辨率效应的实验研究,设计了30,60,120,240,480和960m共6种实验条件。结果显示: (1)工作区内景观格局随分辨率的不断降低出现了显著的变化; (2)斑块数量、周长、景观整体破碎度指数FN1以及斑块形状指数S1和S2为分辨率敏感指数,斑块面积比例、景观多样性、优势度和组分碎裂化指数FN2为分辨率弱敏感指数;(3)工作区内精尺度景观格局研究的分辨率应低于60m,粗尺度研究分辨率应高于240m。

关键词: 景观格局, 尺度, 分辨率, 珠江三角洲

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