| 陕北黄土高原蒿属植物的分类与分析 |
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| 引用本文： | 陈彦生,张春林.陕北黄土高原蒿属植物的分类与分析[J].西北植物学报,1993,13(3):238-245. |
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| 作者姓名： | 陈彦生 张春林 |
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| 作者单位： | 陕西省中国科学院西北植物研究所，陕西省中国科学院西北植物研究所，陕西省中国科学院西北植物研究所，陕西省中国科学院西北植物研究所 陕西 杨陵 712100，陕西 杨陵 712100，陕西 杨陵 712100，陕西 杨陵 712100 |
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| 摘 要： | 陕北黄土高原有蒿属植物30种1变种,居该地产种子植物属中所含种数的首位。所产蒿属植物在不同的植被带中梯度变化明显,替代现象显著。在生态类型上,旱生类型从南向北递增,中生类型从南向北递减。在区系组成上可分为6种分布区类型,即:我国特有分布,3种;温带亚洲分布,14种1变种;北温带及中亚分布各4种;旧世界温带分布,3种;东亚分布的2种。可见陕北黄土高原蒿属植物种类丰富,梯度变化明显,旱化现象显著,地理成分复杂,但以温带亚洲分布类型为主,兼有其它成分,属典型的温带性质。
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| 关 键 词： | 分类 蒿属 黄土高原 植物区系 |
THE TAXONOMY AND ANALYSIS OF ARTEMISIA LINN.IN THE LOESS PLATEAU OF NORTHERN SHAANXI |
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| Chen Yansheng,Zhang Chunlin,Ding Shiyou and Zhang Zhenwan.THE TAXONOMY AND ANALYSIS OF ARTEMISIA LINN.IN THE LOESS PLATEAU OF NORTHERN SHAANXI[J].Acta Botanica Boreali-Occidentalia Sinica,1993,13(3):238-245. |
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| Authors: | Chen Yansheng Zhang Chunlin Ding Shiyou and Zhang Zhenwan |
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| Abstract: | There are 30 species with 1 variety of Artemisia Linn. in the Loess Plateau of Northern Shaanxi, and species number is the largest in the seed plants genera of this region. The species vicarism is obvious in the various vegetation region. On the ecological types, xerophytes types are added and mesophytes types are reduced from the south to the north. The floristic composition may be divided into 6 areal-types: (1) Endemic to China, 3 species. (2) Temperate Asia, 14 species with 1 varicty. (3) Central Asia, 4 spe- eies. (4) East Asia, 2 species. (5) North temperate, 4 species. (6)old world temperate, 3 species. The floristie features of the genus Artemisia flora in the Loess Plateau of Northern Shaanxi are rich in species, viearism obvious, complex in geographical eomponents, and mainly consisting of temperate Asia elments. |
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| Keywords: | taxonomy floristic feature Artemisia Loess Plateau Northern Shaanxi |
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