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林业科学 ›› 2003, Vol. 39 ›› Issue (3): 70-75.doi: 10.11707/j.1001-7488.20030311

• 论文及研究报告 • 上一篇    下一篇

森林类型多样性最大覆盖模型与一种可行算法

汤孟平 唐守正 洪玲霞 雷相东 张会儒   

  1. 新疆农业大学林学院,乌鲁木齐830052;中国林业科学研究院资源信息研究所,北京100091
  • 收稿日期:2002-05-13 修回日期:1900-01-01 出版日期:2003-05-25 发布日期:2003-05-25

MAXIMAL COVERING MODEL ON DIVERSITY OF FOREST TYPE AND ONE AVAILABLE ALGORITHM

Tang Mengping,Tang Shouzheng,Hong Lingxia,Lei Xiangdong,Zhang Huiru   

  1. Forestry Department of Xinjiang Agricultural University Urumqi 830052;The Resource Institute of Forest Resource Information Technique,CAF Beijing 100091
  • Received:2002-05-13 Revised:1900-01-01 Online:2003-05-25 Published:2003-05-25

摘要:

统计分析表明,研究区域内森林类型多样性整体分布格局是:大多数村包含2个不同的森林类型,由北向南森林类型逐渐增多,并呈镶嵌分布。采用最大覆盖模型研究森林类型多样性与保护地的优化选择,模型用贪心法求解,最终得到森林类型多样性的最大覆盖格局包括瓦房庄村、北堂村、孔沟村和竹园村,共5个村。以这5个村作为研究区的森林类型多样性保护地比较合适。指出,在研究区内,森林类型多样性可能并非完全是自然形成的,不能排除人为因素的影响。

关键词: 森林类型, 生物多样性, 生态系统, 最大覆盖模型, 贪心法

Abstract:

Statistics analysis showed the general pattern of forest type diversity in studied area: most villages had forest type of two predominant tree species;the number of forest type in mosaic pattern increased from the northern to the southern. A maximal covering model on forest type diversity and reserve selection had been built .The model was solved by greedy algorithm,and five villages had been selected for the maximal covering pattern of forest type diversity and they were suitable for reserve sites. The forest type diversity was probably not only formed by nature, human influence could not be completely excluded in the studied area.

Key words: Forest type, Biodiversity, Ecosystem, Maximal covering model, Greedy algorithm