塔里木河下游主要荒漠植物繁殖体的形状、大小与质量比较

生态学杂志

塔里木河下游主要荒漠植物繁殖体的形状、大小与质量比较

赵新风^1,3,5;朱艳芬⁴;徐海量^1,2,3;叶茂⁴;李媛^1,3,5

¹中国科学院新疆生态与地理研究所，乌鲁木齐 830011; ²中国科学院新疆生态与地理研究所阿克苏水平衡试验站，新疆阿拉尔 843300;³中国科学院绿洲生态与荒漠环境重点实验室，乌鲁木齐 830011;⁴新疆师范大学地球科学与旅游学院，乌鲁木齐 830054;⁵中国科学院研究生院，北京 100039

收稿日期:2008-05-22 修回日期:1900-01-01 出版日期:2009-03-10 发布日期:2009-03-10

Comparison of diaspore shape, size, and mass of main desert plants in the lower reaches of Tarim River of Xinjiang, China.

ZHAO Xin-feng^1,3,5;ZHU Yan-fen⁴;XU Hai-liang^1,2,3;YE Mao⁴;LI Yuan^1,3,5

¹Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;²Water Balancing Test Station, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Aral 843300, Xinjiang, China;³Key Laboratory of Oasis Ecology and Desert Environment, Chinese Academy of Sciences, Xinjiang 830011, China;⁴College of Earth Science and Tourism, Xinjiang Normal University, 830054, China;⁵Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Received:2008-05-22 Revised:1900-01-01 Online:2009-03-10 Published:2009-03-10

摘要/Abstract

摘要： 研究了塔里木河下游主要荒漠植物(21种)繁殖体的形状、大小、质量(17种为种子，4种为果实)。用三维方差衡量繁殖体形状，用三维之和衡量繁殖体大小，繁殖体百粒质量衡量繁殖体质量。结果表明：1)21种植物繁殖体的形状差异很大,且豆科(Fabaceae)植物的繁殖体形状接近圆球形,菊科(Compositae)植物的繁殖体形状较大地偏离圆球形(方差>0.05)。21种植物繁殖体大小、质量差异也很大;2)繁殖体大小的表现趋势与其相应的质量的表现趋势具有一定的一致性;3)研究区主要荒漠植物中，多年生草本植物的种类虽然不及灌木(半灌木)的种类丰富，但其繁殖体平均质量却比灌木(半灌木)多18%;4)在21种植物的繁殖体中,9种具有持久土壤种子库。100%的柽柳科(Tamaricaceae)植物、100%的菊科植物都具冠毛,这些附属物对植物繁殖体的传播和定居具有重要的意义。

关键词: 香茅, 挥发物, 气质联用, 化感作用

Abstract: A comparative study was conducted on the shape, size, and mass of diaspores of 21 main desert plants in the lower reaches of Tarim River. The diaspores includ ed 17 kinds of seeds and 4 kinds of fruits. Their shape was measured by three-d imension variance, size was measured by the sum of three-dimension, and mass was measured by 100-seed mass method. The diaspore shape of test plants varie d greatly, with that of Fabaceae being nearly spherical, and of Compositae great er deviating spherical (variance>005). Diaspore mass also had greater differ ence. There was a definite consistency between the trend of diaspore size and mass. The mean mass of perennial herb’s diaspore was 18% heavier than that of shrub and semi-shrub’s diaspore, though the perennial herb had le sser species than shrub and semi-shrub. Nine of the 21 main desert plants had p ersistent seed bank. 100% of Tamaricaceae and 100% of Compositae plants had papp us which is of significance for the dispersal and settling down of the diaspore.

Key words: Cymbopogon citratus, Volatile, GC-MS, Allelopathy

赵新风^1,3,5;朱艳芬;徐海量;叶茂;李媛^1,3,5. 塔里木河下游主要荒漠植物繁殖体的形状、大小与质量比较[J]. 生态学杂志.

ZHAO Xin-feng^1,3,5;ZHU Yan-fen⁴;XU Hai-liang^1,2,3;YE Mao⁴;LI Yuan^1,3,5. Comparison of diaspore shape, size, and mass of main desert plants in the lower reaches of Tarim River of Xinjiang, China.[J]. cje.

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