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镧系锁磷剂(LMB)施用对沉水植物影响的研究进展
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Abstract:
以镧系锁磷剂(LMB)为代表的原位钝化技术越来越多地应用于湖泊沉积物内源磷释放的控制中，期望达到控制富营养化，促使湖泊由浊水态向清水态转变的目的。沉水植物在湖泊清水态的形成和维持中起着核心作用，也常常用于湖泊富营养化修复中。因此，为了确保修复效果，明确沉水植物对原位钝化技术的响应情况十分必要。本文系统综述了镧系锁磷剂LMB施用对沉水植物的影响研究进展，重点关注沉水植物生物量、形态学特征、生理生化特征和种间关系等方面的变化情况，同时分析了作用机理，并指出当前研究的局限性，对未来研究方向提出了建议，以期为富营养化水体修复中锁磷剂的科学应用提供理论依据。
In situ phosphorus inactivation technologies, represented by lanthanum-modified bentonite (LMB), are increasingly being applied to control the release of internal phosphorus from lake sediments, with the aim of mitigating eutrophication and facilitating the transition of lakes from a turbid to a clear water state. Submerged macrophytes play a central role in the establishment and maintenance of clear water conditions in lakes and are often used in the restoration of eutrophic lakes. Therefore, in order to ensure the restoration efficacy, it is essential to clarify the response mechanism of submerged macrophytes to the application of in situ inactivation technologies such as LMB. This paper systematically reviews the progress of research on the effects of LMB application on submerged macrophytes, with a focus on the changes in aspects such as the biomass, morphological characteristics, physiological and biochemical characteristics, and interspecific relationships of submerged macrophytes. The mechanisms underlying these effects are analyzed, current research limitations are identified, and future research directions are proposed, providing a theoretical foundation for the scientific application of LMB in eutrophic waterbody restoration.
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