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- Base on the dominate species of community and importance value of exotic plants,the most harmful exotic plants in Changsha were Alternanthera philoxeroide,Hyptis rhomboidea,Paspalum conjugatum and Veronica polita. 根据样地中群落优势种和外来植物重要值的情况确定了危害最严重的几种外来植物是空心莲子草、吊球草、两耳草、婆婆纳。
- Species of exotic plants 外来植物种
- The number of species from south America was the 63,which was the most,and accounted for 49% of the total species number of exotic plants. 含5种以上的有8科,来源于南美热带的种类最多,达63种,占云南外来入侵植物种数的49%25;
- Management and Ecological Risk Assessment of Exotic Plants. 植物外来种的生态风险评估和管理
- Three new species of butterfly, a new type of adder, and many exotic plants were discovered in the southeast African country. 在这个非洲东南部的国家发现了三种新的蝴蝶，一种新的小毒蛇，还有许多种奇异的植物。
- The result showed that the habitat form of exotic plants displayed diversify. 结果表明:生态入侵植物分布的生境类型表现出多样化;
- More and more studies showed that the allelopathy of exotic plants played an important role in their successful ecesis. 越来越多的研究证明了植物化感作用在外来植物成功定居中扮演重要的角色。
- In this paper, effects of exotic plant invasions on soil biota and soil nutrient cycling processes are reviewed, and the mechanisms that underlie these impacts are discussed. 本文综述了外来植物入侵对土壤微生物、土壤动物以及土壤碳、氮循环动态影响的研究, 并探讨了其影响机制。
- As the influence of exotic plants enhancing, their Importment values are changing, their Importment values are minimum in backcountry, but are maximum in suburb, in this area the exotic gorwing well, and its influence is grave. 随着外来植物的影响逐渐加强,它们本身的重要值不断变化,其中在农村中,外来植物的重要值最小,在郊区中外来植物的重要值最大,本区的外来植物的生长发育最好,影响也最严重。
- WU Yanqiong,HU YuJia.Researches on photosynthetic characteristics of exotic plants Wedelia trilobata,Pharbitis nil and Ipomoea cairica[J].Acta Ecologica Sinica,2004,24(10):2334-2339. [23]吴彦琼;胡玉佳.;外来植物南美蟛蜞菊、裂叶牵牛和五爪金龙的光合特性[J]
- All these trials are now kept as gene banks.Eucalyptus is a kind of exotic plants, with no natural distribution in China and it is impossible for Eucalyptus to hybrid with the native trees. 桉属树种全部为外来引进树种，我国没有自然分布，不能与我国本土树种发生杂交，不存在与我国本地树种发生基因交流或杂种化的风险。
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- The available literature suggests that no consistent pattern exists on the impacts of exotic plant invasions on soil microbes, soil animals, soil carbon cycling and nitrogen cycling. 已有的研究表明, 植物入侵对土壤生物多样性及相关生态系统过程的影响均存在不一致的格局, 影响机制也是复杂多样的。
- There are many species of chrysanthemum. 菊花品种很多。
- We saw pictures of exotic birds from the jungle of Brazil. 我们看到了来自於巴西热带雨林的各种奇异鸟类的照片。
- This species of flower flourishes in a warm climate. 这种花在温暖的气候中长得茂盛。
- Review on allelopathy of exotic plants 外来植物化感作用研究综述
- Some new species of scrophulariaceous plants. 中国玄参科植物的几个新种.
- Welcome to the world of exotic flow control. 欢迎来到奇妙的流控制世界。
- Chemical mechanism of exotic weed invasion. 外来杂草入侵的化学机制
