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温州市加拿大一枝黄花发生现状及入侵成因分析 被引量:5
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作者 袁亦文 王映雪 +2 位作者 方吉 金国胜 徐建信 《植物检疫》 2006年第4期228-229,共2页
我国加拿大一枝黄花据记载1935年作为观赏植物引进,20世纪80年代扩散蔓延成为恶性杂草,目前上海、安徽、湖北、江苏、江西、浙江等地都有发生。本文分析了其在温州的发生情况及入侵成因。结果表明:我市的气候条件、人类活动、特殊的生... 我国加拿大一枝黄花据记载1935年作为观赏植物引进,20世纪80年代扩散蔓延成为恶性杂草,目前上海、安徽、湖北、江苏、江西、浙江等地都有发生。本文分析了其在温州的发生情况及入侵成因。结果表明:我市的气候条件、人类活动、特殊的生物学特征、生态位空缺等是造成该草入侵的主要成因。建议通过人工挖除等手段加强该草的防治。 展开更多
关键词 加拿大一枝黄花 杂草 入侵成因
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Study on the Cause and Dynamics of Seawater Intrusion in Laizhou Bay
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作者 Pan Wang Yongjie Zheng 《International Journal of Technology Management》 2016年第10期24-27,共4页
In this paper, we conduct research on the cause and dynamics of seawater intrusion in the Laizhou bay. To consider modelling the Laizhou bay, we should then take the listed tools into consideration. In actual engineer... In this paper, we conduct research on the cause and dynamics of seawater intrusion in the Laizhou bay. To consider modelling the Laizhou bay, we should then take the listed tools into consideration. In actual engineering, wave is a complicated stochastic process. If the numerical value of wave model is a little too large, the wave attenuation should be considered sufficiently, such as wave refraction caused by terrain change, wave attenuation due to submarine friction, wave into the very shallow waters of the broken and small wind area. We integrate the current conition of the Laizhou bay and the further model the seawater intrusion steps. The uncertainty research of ground water solute migration is at present a ground water research area quite popular topic, but the seawater intrusion is the variable density class solute migration issue, applies the uncertainty analysis of seawater intrusion simulation also to have certain difficulty the existing research results. In the future, more simulation will be down to verify the effectiveness. 展开更多
关键词 Cause and Dynamics Seawater Intrusion Laizhou Bay General Review
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