互花米草入侵对东部沿海生境的影响

摘要： 选取东部沿海最有代表性的3个区域分别为闽江口湿地、崇明东滩湿地以及盐城丹顶鹤保护区作为研究对象，分别从养分分配机制、群落特征和生物量及有机质的差异方面研究互花米草入侵的机制。分析显示，其入侵能力强的主要原因是高于其他植物的基因渗入能力和高遗传分化能力。同时，根据互花米草对滩涂动植物和水鸟种群分布两方面研究其对东部沿海的生境的影响。在此基础上，提出应更多地采取综合治理的方法，并以研发其利用价值为核心，进一步加强对互花米草入侵的控制和防治。

关键词: 互花米草入侵, 东部沿海, 入侵机理, 控制措施, 资源利用

Abstract: Three most representative areas of the eastern coast, namely the Weijiangkou Wetland, Chongming Dongtan Wetland and Yancheng Danding Crane Reserve as the research objects, and analyzed the aspects of nutrient distribution mechanism, community characteristics and biomass and organic matter differences, respectively, to identify the mechanism of the invasion. The results indicated that the main reason is due to its strong invasion ability being higher than the genetic penetration ability and higher genetic differentiation ability than other plants. Meanwhile, the we also studied the impacts on the local the beach-coated flora and water birds to illustrate Spartina alterniflora′s negative influences on the habitat of the eastern coast. On this basis, it was suggested that more comprehensive managing methods should be adopted, and the research and development of its utilization as the core values, to further strengthen the control and prevention of the invasion of Spartina alterniflora′s countermeasures.

Key words: Spartina alterniflora invasion, Eastern Costal areas, intrusion mechanism, control measures, resource utilization

中图分类号: 

Q948

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