| 干热河谷主要造林树种旱性结构的初步研究 |
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| 引用本文： | 高洁 张尚云. 干热河谷主要造林树种旱性结构的初步研究[J]. 西南林学院学报, 1997, 17(2): 59-63 |
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| 作者姓名： | 高洁 张尚云 |
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| 作者单位： | 西南林学院林业系 |
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| 基金项目： | 国家“八五”重点科技攻关项目 |
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| 摘 要： | 用光学显微技术和根／冠比方法，研究了干热河谷主要造林树种的旱性结构，结果表明，根／冠比值高、栅栏组织发达，海绵组织退化，栅／海比值高，贮水组织发达，叶肉质，等面叶和厚的角度层是重要的旱性结构特征，并就旱性结构在植物抗旱中的作用进行了讨论。
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| 关 键 词： | 干热河谷 旱性结构 造林 树种 |
A PRELIMINARY STUDY ON XEROMORPHISM OF SOME IMPORTANT SILVICULTURAL SPECIES IN THE DRY-HOT RIVER VALLEY |
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| Gao Jie Zhang Shangyun Fu Meifen Yu Liyun. A PRELIMINARY STUDY ON XEROMORPHISM OF SOME IMPORTANT SILVICULTURAL SPECIES IN THE DRY-HOT RIVER VALLEY[J]. Journal of Southwest Forestry College, 1997, 17(2): 59-63 |
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| Authors: | Gao Jie Zhang Shangyun Fu Meifen Yu Liyun |
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| Abstract: | By using optical microscopic method,the xeromorphism of some important silvicultural species growing in the dry-hot river valley were determined The high root-shooting ratio,thick leaves well-developed palisade tissue and degenerated spongy tissue,the high ratio of palisade tissue to spongy tissue,well-developed water storing tissue,succulence,leaves,isobilateral leaf and thiclk cuticle were important characteristics of xeromorphic structure The role of xeromorphism in drought-resistance was also discussed |
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| Keywords: | Dry-hot river valley Xeromorphism Root-shooting ratio Morpho logical and anatomical structure |
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