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不同虫害干扰强度下大兴安岭呼中林区森林景观变化模拟

  • 陈宏伟 ,
  • 胡远满 ,
  • 常禹 ,
  • 布仁仓 ,
  • 贺红士 ,
  • 李月辉 ,
  • 刘淼
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  • 1. 中国科学院沈阳应用生态研究所, 沈阳 110016;
    2. 中国科学院研究生院,北京 100049

收稿日期: 2010-04-21

  修回日期: 2010-05-10

  网络出版日期: 2011-01-20

基金资助

973项目(2009CB421101)、国家自然科学基金(31070422)和中国科学院知识创新工程重要方向项目(KZCX2-YW- 444)资助 

Simulation of the forest landscape change under pest disturbances with different intensities in Huzhong area of Daxing’anling Mountains

  • CHEN Hong-Wei ,
  • HU Yuan-Man ,
  • CHANG Yu ,
  • BU Ren-Cang ,
  • HE Hong-Shi ,
  • LI Yue-Hui ,
  • LIU Miao
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  • 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received date: 2010-04-21

  Revised date: 2010-05-10

  Online published: 2011-01-20

摘要

应用空间直观景观模型(LANDIS)模拟不同虫害干扰强度下森林景观的长期变化,采用APACK统计软件计算落叶松和白桦及各龄组的分布面积以及物种格局变化.结果表明,虫害干扰降低了落叶松分布面积,提高了白桦的面积比例;降低了落叶松的成热、过熟林面积,增加了白桦各个龄组分布面积;降低了落叶松的聚集度,增加了白桦的聚集度.虫害干扰在一定程度上降低了森林生态系统的稳定性,导致森林景观的破碎化.

本文引用格式

陈宏伟 , 胡远满 , 常禹 , 布仁仓 , 贺红士 , 李月辉 , 刘淼 . 不同虫害干扰强度下大兴安岭呼中林区森林景观变化模拟[J]. 中国科学院大学学报, 2011 , 28(1) : 65 -72 . DOI: 10.7523/j.issn.2095-6134.2011.1.010

Abstract

We used the spatially explicit forest landscape model (LANDIS) to stimulate the long-term forest landscape change under pest disturbances with different intensities.The species area percents and age structures of Larch and White Birch and the species patterns were derived by using APACK. Results indicate that the pest disturbances led to a decrease in area percent of Larch cohorts and an increase in area percent of White Birch cohorts.The disturbances also led to a decrease in area of over-mature and mature cohorts of Larch and an increase in area of all age-cohorts of White Birch.We conclude that forest pest reduces the stability of forest ecosystem and leads to landscape fragmentation to some extent.

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