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Sci Rep:中山大学彭少麟发表控制互花米草入侵文章

摘要 : 中山大学生命科学学院彭少麟研究团队在《Scientific Report》上报告了一种在中国沿海生态控制入侵生物互花米草的模型

中山大学生命科学学院彭少麟研究团队在《Scientific Report》上报告了一种在中国沿海生态控制入侵生物互花米草的模型,这种方法使用了外来红树林品种来改善本土红树林的生长。研究者表示这一措施让外来红树林植物在完成其使命后,自然灭亡,从而避免了一种新的物种入侵。

红树林提供的生态价值被认为每年可以达到16亿美元,但是中国很多被破坏的红树林地区都被一种名叫互花米草(Spartina alterniflora)的物种入侵了。用物理方法,化学方法,引入包括其他草本植物在内竞争物种的在内的生物方法都没有能够有效控制这个入侵物种。

为了有效的控制互花米草,同时恢复中国珠海的淇澳岛的红树林群落,彭少麟和他的研究团队使用了两个外来的红树林物种,无瓣海桑(Sonneratia apetala)和海桑(Sonneratia apetala),来进行对于互花米草的五年置换控制。他们的研究结果显示,在胜过了互花米草之后,无瓣海桑和海桑会逐渐让位给本土的红树林品种。研究表示,这是第一个经济,有效和持久的成功利用外来物种控制互花米草的模型。

原文链接:

Use of exotic plants to control Spartina alterniflora invasion and promote mangrove restoration

原文摘要:

 

In coastal China, the exotic invasive Spartina alterniflora is preventing the establishment of native mangroves. The use of exotic species, control of exotic plant invasion, and restoration of native plant communities are timely research issues. We used exotic Sonneratia apetala Buch.-Ham and S. caseolaris (L.) Engl. to control invasive Spartina alterniflora Loisel through replacement control for five years, which concurrently promoted the restoration of native mangroves. This process includes three stages. I: In a mangrove area invaded by S. alterniflora, exotic S. apetala and S. caseolaris grew rapidly due to their relatively fast-growing character and an allelopathic effect. II: Fast-growing S. apetala and S. caseolaris eradicate S. alterniflora through shading and allelopathy. III: The growth of native mangrove was promoted because exotic plant seedlings cannot regenerate in the understory shade, wheras native mesophytic mangrove plants seedlings can grow; when the area experiences extreme low temperatures in winter or at other times, S. apetala dies, and native mangrove species grow to restore the communities. This model has important implications for addressing the worldwide problems of “how to implement the ecological control of invasion using exotic species” and “how to concurrently promote native community restoration during the control of exotic invasion”.

来源: Scientific Report 浏览次数:0

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