| 生物多样性与林分抗虫性的评判 |
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| 引用本文： | 李孟楼,王鸿哲,张学武.生物多样性与林分抗虫性的评判[J].西北农林科技大学学报(社会科学版),2004,32(3):65-68. |
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| 作者姓名： | 李孟楼 王鸿哲 张学武 |
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| 作者单位： | 西北农林科技大学,林学院,陕西,杨凌,712100 |
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| 基金项目： | 国家教育部科学技术研究重点项目(03159)，国家林业局黄土高原林木培育开放实验室基金项目(K02-10) |
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| 摘 要： | 针对用林分多样性指标难以对林分抗虫能力作出评价的问题,论述了应用多样性测度阈值和林分虫害强度确定混交林混交率,并根据特定林分的混交率判定其对特定害虫抗性强弱的原理,并阐述了应用多样性阈值评判林分抗虫性的可行性及其影响因素。
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| 关 键 词： | 生物多样性 林分抗虫性 评判原理 |
| 文章编号： | 1671-9387(2004)03-0065-04 |
| 收稿时间： | 9/3/2003 12:00:00 AM |
| 修稿时间： | 2003年9月3日 |
The judgment of resistance forestry for pest by biodiversity index |
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| LI Meng-lou,WANG Hong-zhe,ZHANG Xue-wu.The judgment of resistance forestry for pest by biodiversity index[J].Journal of Northwest Sci-Tech Univ of Agr and,2004,32(3):65-68. |
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| Authors: | LI Meng-lou WANG Hong-zhe ZHANG Xue-wu |
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| Institution: | (College of Forestry,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China) |
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| Abstract: | Considering that it is difficut to judge the insect-resistant capacity of forest by the biodiversity index of forest,the paper discussed how to ascertain the mixed rate of forest by DTV (insect community diversity threshold value) and Sph (Strength of pest harm).Moreover,how to judge the resistance to insect pests of forest according to the mixed rate of forest is clearly explained.Meanwhile,the feasibility and influencing factor of applying DTV technique to judge resistance insect pest of forest are elaborated. |
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| Keywords: | biological diversity resistance to insect pest of forest judgment fundamentals of resistance forest |
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