| 四川碗厂沟流域种子植物区系研究 |
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| 引用本文： | 覃志刚,王鹏,陈林武.四川碗厂沟流域种子植物区系研究[J].四川林业科技,2003,24(1):12-18. |
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| 作者姓名： | 覃志刚 王鹏 陈林武 |
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| 作者单位： | 四川省林业科学研究院,四川,成都,610081 |
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| 基金项目： | 国家“十五”科技攻关项目《长江上游低山丘陵区水源涵养型植被建设技术研究与示范》和《嘉陵江上游低效人工林改造与坡面治理技术研究与示范》的部分内容。 |
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| 摘 要： | 碗厂沟流域位于四川北部，有种子植物84科，282属，556种，对该区种子植物区系研究表明。克厂沟流域种子植物类型多样，地理成分复杂；克厂沟流域种子植物区系中温带成分占总属数的63.0%。各种热带成分占34.7%。具有明显的过渡地带性植被区系性质；与相邻地区种子植物区系比较表明，碗厂沟流域种子植物区系与太白山，神农架和金佛山具有较高的同质性，与鼎湖山则具明显差异。
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| 关 键 词： | 碗厂沟流域 种子植物 植物区系 PCA排序 |
| 文章编号： | 1003-5508(2003)01-0012-07 |
| 修稿时间： | 2003年1月4日 |
Studies on flora of seed plants in wanchanggou watershed of sichuan province |
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| QIN Zhi-gang,WANG Peng,CHEN Lin-wu.Studies on flora of seed plants in wanchanggou watershed of sichuan province[J].Journal of Sichuan Forestry Science and Technology,2003,24(1):12-18. |
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| Authors: | QIN Zhi-gang WANG Peng CHEN Lin-wu |
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| Abstract: | Wanchanggou watershed is located in the north of Sichuan basin.There were 556 species of seed plant,which belonged to 282 genera,84 families.The largest family was Rosaceae,which contained 53 species.The 282 genera of seed plant,excluding 31 cosmopolitan genera and 5 genera endemic to china,could be grouped into 14 distribution types and 14 sub-distribution types as proposed by Wu Zheng-yi.Among them,there were 75 genera of North temperate types,there were 83 genera of else temperate types and there were 87 genera of the all tropical types,which accounted for 29.9%,33.1% and 34.7% of the total genera(not including cosmopolitan),respectively.It was clearly shown that the flora of Wanchanggou watershed had a strong transitional feature from subtropics to temperate.Compared with the neighbor area,the seed plant flora of Wanchanggon watershed had an upper homogeneity with that of Taibai Mountain,Shengnongjia Mountain,Jinfo Mountain,and it was very different from Dinghu Mountain. |
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| Keywords: | Wangchanggou Watershed of Sichuan Province Seed Plants Flora PCA Ordination |
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