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应用生态学报 ›› 1999, Vol. 10 ›› Issue (2): 167-171.

• 研究论文 • 上一篇    下一篇

关帝山森林景观异质性及其动态的研究

郭晋平1, 阳含熙1, 薛俊杰1, 王毅敏2, 魏信2   

  1. 1. 山西农业大学林学系, 太谷 030801;
    2. 山西省遥感研究所, 太原 030001
  • 收稿日期:1998-02-09 修回日期:1998-05-27 出版日期:1999-03-25 发布日期:1999-03-25
  • 通讯作者: 郭晋平,男,1963年出生,博士后,副教授,从事景观生态学研究,第一作者发表论文20篇,合作发表7篇.
  • 基金资助:

    国家自然科学基金资助项目(39600115).

Forest landscape heterogeneity and its dynamics of Guandishan Mountain

Guo Jinping1, Yang Hanxi1, Xue Junjie1, Wang Yimin and Wei Xin2   

  1. 1. Shanxi Agricultural University, Taigu 030801;
    2. Shanxi Remote Sensing Institute, Taiyuan 030001
  • Received:1998-02-09 Revised:1998-05-27 Online:1999-03-25 Published:1999-03-25

摘要: 以4期航片为基础资料,在ARC/INFO支持下,应用地理信息系统(GIS)技术,通过景观要素优势度指数、景观多样性指数、景观斑块密度、景观边缘密度、景观镶嵌度指数和景观聚集度指数5类指标,对关帝山林区50年代末以来的景观异质性及其动态特征进行了全面分析,并介绍了各指标的数据来源和计算方法,分析了各指标的实用性。在GIS支持下,上述各指标可以从不同侧面描述和反映景观异质结构特征,用于景观异质性动态变化规律的研究。研究表明,自50年代末以来,关帝山森林景观受环境异质性、植被自然演替和人为活动的共同控制,总体异质性发生了很大变化,3个时期表现出不同的动态特征。对人为活动频繁的次生林区的森林景观异质性动态变化的基本规律和控制因素进行了讨论.

关键词: 森林景观, 景观异质性, 异质性指标, 动态分析, GIS技术

Abstract: Based on aerial images of four periods,the GIStechnique supported by ARC/INFOsoftware was used to analyze the forest landscape heterogeneity and its dynamics of Guandishan Mountain forested area since the end of 1950s,by selecting Landscape Element Dominance Index(LEDI), Landscape Diversity Index(LDI),Landscape Patch Density(LPD),Landscape Edge Density(LED),Landscape Patchness Index(LPI) and Landscape Contagion Index(LCI) as six indexes.Methods for data treatment and calculation were introduced, and the applicability of these indexes was analyzed.On the support of GIStechnique,the above mentioned indexes could reveal and describe the structural characteristics of landscape heterogeneity from different aspects,which was useful to study the dynamic process of landscape heterogeneity.The results show that since the end of 1950's,the forest landscape in studied area was controlled by the combination of environmental heterogeneity,natural vegetation succession and human's activities,and the whole landscape heterogeneity changed significantly with different dynamic characteristics in three periods.The basic patterns and regulation factors of dynamic changes of forest landscape heterogeneity in secondary forest area with frequent human's activities were also discussed.

Key words: Forest landscape, Landscape heterogeneity, Heterogeneity measure index, Dynamic analysis, GIS technology