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Plant Diversity ›› 2009, Vol. 31 ›› Issue (06): 529-536.DOI: 10.3724 SP.J.1143.2009.09137

• 研究论文 • 上一篇    下一篇

四川小相岭山系植被景观的斑块特征分析

胡翠华1 , 黄尤优2 , 3 , 刘守江1, 许武成1   

  1. 1 西华师范大学国土资源学院, 四川南充 637002; 2 西华师范大学生命科学学院, 四川南充 637002;
    3 西南野生动植物资源保护教育部重点实验室, 四川南充 637002
  • 收稿日期:2009-07-20 出版日期:2009-12-25 发布日期:2009-12-25

Analysis on the Patch Characteristics of Vegetation Landscape of Xiaoxiangling Mountains in Sichuan Province

HU Cui-Hua1 , HUANG You-You2 , 3 , LIU Shou-Jiang1 , XU Wu-Cheng1   

  1. 1 Land and Resources College , China West Normal University , Nanchong 637002 , China ; 2 College of Life Sciences, China West Normal University , Nanchong 637002 , China ; 3 Key Laboratory of Southwest China Wildlife
    Resources Conservation , Ministry of Education , Nanchong 637002 , China
  • Received:2009-07-20 Online:2009-12-25 Published:2009-12-25

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摘要： 利用3S 技术与景观生态学相结合的方法, 分别从斑块的基本特征、形状特征、聚集与散布特征以及多样性特征4 个方面对四川小相岭山系的植被景观空间格局进行了详细分析。研究结果表明: 1) 该山系存在9 种植被类型, 斑块数为1 849 , 斑块面积约186 951 hm2 。其中, 针阔叶混交林分布面积与密度最大, 是山系的基质植被类型; 而次生落叶阔叶林面积最少, 景观地位最弱。2) 常绿落叶阔叶混交林形状最为简单, 但聚集度高; 而针阔叶混交林形状最不规则, 边界最为复杂; 另外, 次生落叶阔叶林连接性最弱, 高山草甸斑块聚集程度最高。3) 该山系斑块的多样性、优势度、均匀度指数值分别为1 . 54、0 . 66 和0 . 67 , 植被类型丰富多样、植被错综复杂、各植被斑块间镶嵌度较好。

关键词: 景观分析法, 植被景观, 景观指数, 小相岭山系

Abstract: The spatial pattern characters of vegetation landscape of Xiaoxiangling Mountains in Sichuan were meticulously analyzed in four respects, that is, the basic characteristics, the shape characteristics, the aggregation and interspersion characteristics and the diversiform characteristics of patches , by the method of 3S technology combined with Landscape ecology. Our results indicate that : (1) there are 9 vegetation types in these Mountains with 1 849 number of patch , 18 6951 hm2 areas . Coniferous and broad-leaved mixed forest is the background of the area because of its biggest distribution area and densest inlaid there ; Secondary deciduous broad-leaved forest is of the lowest heterogeneity degree for its smallest area .
( 2) Evergreen broad- leaved and deciduous broad-leaved mixed forest is of the most simply shape, and high degree of patch aggregation . But Coniferous and broad-leaved mixed forest is of the most complicated of both patch shape and edge . Besides, secondary deciduous broad-leaved forest is of its least connectivity , and alpine shrub is of the highest degree of patch
aggregation . ( 3) These Mountains′species richness, dominance and diversity are 1 . 54 , 0 . 66 and 0 .67 . It is found to be the main features of the vegetation landscape and the inlaid degree of each vegetation types is better in Mountains .

Key words: Landscape structure analysis

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