| 五针白皮松濒危原因初步研究 |
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| 引用本文： | 陆素娟,邓莉兰,李乡旺.五针白皮松濒危原因初步研究[J].西北林学院学报,1999,14(1):42-44. |
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| 作者姓名： | 陆素娟 邓莉兰 李乡旺 |
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| 作者单位： | 西南林学院,650224,昆明 |
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| 摘 要： | 五针白皮松（Ｐｉｎｕｓｓｑｕａｍａｔａ）是一古老而濒危的树种，现仅存２０株。本文讨论了它的濒危原因：（１）干旱及间歇性干旱影响；（２）球果种鳞结构不利种子脱落；（３）种子产量少、质量低；（４）种子发芽势弱；（５）人为活动影响。
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| 关 键 词： | 五针白皮松 濒危种 濒危原因 |
| 修稿时间： | 1998-10-22 |
A Study on Endangered Causes of Pinus squamata |
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| Lu Sujuan,Deng Lilan,Li Xiangwang.A Study on Endangered Causes of Pinus squamata[J].Journal of Northwest Forestry University,1999,14(1):42-44. |
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| Authors: | Lu Sujuan Deng Lilan Li Xiangwang |
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| Abstract: | Pinus squamata is an old and endangered species. There are only 20 trees now. The endangered causes of the species were discussed. They are 1) effects of drought and intermittent drought; 2) the structrue of cone is unfavorable for seed dropping; 3) output and quality of seed are lower; 4) germinative energy of seed is weak; 5) effects of people's activity |
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| Keywords: | Pinus squamata endangered species endangered causes |
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