Clipping at early florescence is more efficient for controlling the invasive plant Spartina alterniflora
Clipping at early florescence is more efficient for controlling the invasive plant Spartina alterniflora
复制标题
早期花期修剪对于控制入侵植物互花米草更为有效
DOI：
10.1007/s11284-008-0577-y
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发表时间：
2009-09-01
影响因子：
2
通讯作者：
Zhao, Bin
中科院分区：
文献类型：
--
作者：
Gao, Yang;Tang, Long;Zhao, Bin
由于不同生命阶段的入侵植物对植被清除操作的恢复潜力不同，如何优化消除它们的适当时机（单次处理的时间或重复处理的开始时间）成为入侵植物管理中的一个重要课题。本研究选择了入侵植物互花米草，并将其作为植被砍伐的例子，以检验处理时机对于提高控制效率的重要性。结果表明，一年内单次或多次刈割处理，花期刈割对互花米草的防治效果较好。另一方面，在没有适当时机的情况下增加修剪频率可能不会提高控制效率，这表明在适当时机进行处理可能会降低特定控制目标所需的修剪频率。从管理的角度来看，每种防治方法都有其最佳的处理时机，因此，为了提高防治效率，应根据目标植物的物候状况合理设计防治方案。此外，重复修剪显示低潮区的控制效率显着高于高潮区，这表明入侵植物控制效率的栖息地依赖性是入侵植物管理中的一个重要问题。
As invasive plants in different life stages have different recovery potential against devegetation operation, how to optimize the proper timing (the time for single treatment or the starting time for repeated treatments) for eliminating them becomes an important topic in the management of invasive plants. The invasive plant Spartina alterniflora was selected in this study, and it was clipped as a devegetation example to examine how important treatment timing is for increasing control efficiency. The results illustrated that by either single or repeated clipping treatments within 1 year, clipping at florescence was more efficient for controlling S. alterniflora. On the other hand, increasing clipping frequency without proper timing might not enhance control efficiency, suggesting that treatments in proper timing might reduce the clipping frequency required for a specific control target. From a management point of view, each control method has its optimal treatment timing, thus, in order to improve the control efficiency, the control programs should be ideally designed in relation to the phenology of the target plant. Besides, repeated clipping showed significantly higher control efficiency in low tidal zone than in high tidal zone, implying that habitat dependence of invasive plant control efficiency is an important issue in the management of invasive plants.