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首页> 外文期刊>Aquatic Biology >Overwintering survival and regrowth of the invasive plant Eichhornia crassipes are enhanced by experimental warming in winter
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Overwintering survival and regrowth of the invasive plant Eichhornia crassipes are enhanced by experimental warming in winter

机译：冬季实验性变暖增强了入侵植物凤眼莲的越冬存活率和再生长。

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ABSTRACT: The distribution of the invasive aquatic plant Eichhornia crassipes is considered to be limited by winter survival. Therefore, winter warming, as well as characteristics of overwintering organs, are expected to affect its distribution and survival. An experiment was conducted to analyze the effects of winter warming and stem base treatments (size or burial) on winter survival, regrowth and thus performance of floating or rooted plants of E. crassipes using a simulated warming system in a greenhouse. Winter warming significantly increased the percentage survival in both forms of the plant and facilitated its regrowth and clonal propagation. Stem base size played an important role in determining survival, regrowth and vegetative propagation. Moreover, water cover and sediment burial of stem bases facilitated overwintering. After winter survival, a larger fraction of the biomass of E. crassipes was allocated to shoots. These results suggest that, with climate warming, the invasive ability of E. crassipes will be enhanced, with distribution spreading to the north into central and north China, favouring plants with large stem bases.
机译：摘要：入侵性水生植物凤眼兰（Eichhornia crassipes）的分布受到冬季生存的限制。因此，冬季变暖以及越冬器官的特性预计会影响其分布和生存。进行了一项实验，以分析冬季变暖和茎基处理（大小或埋葬）对 E 的漂浮，生根植物的冬季存活，再生以及性能的影响。在温室中使用模拟变暖系统来 crassipes 。冬季变暖显着提高了两种植物的存活率，并促进了植物的生长和克隆繁殖。茎基大小在决定存活率，再生长和无性繁殖方面起着重要作用。此外，茎基的水淹和沉积物埋葬促进了越冬。在冬季存活之后，E e的生物质中较大部分。十字花科植物被分配给芽。这些结果表明，随着气候变暖， E的入侵能力。十字花科植物将得到增强，其分布范围将从北部扩展到中国中部和北部，从而有利于茎基较大的植物。

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