大型水生植物对维持水生态系统的健康非常重要。水生植物通过为水生动物和微生物提供食物和栖息地、对进入水体的径流进行拦截、过滤和吸附、从水体和沉积物中吸收氮、磷和重金属元素等污染物、进行光合作用为水生态系统提供氧气、化感作用抑制藻类生长等途径维持水体生态系统的健康发展。认识到水生植物是水生态系统的重要组成部分,又是水生态系统健康的一项重要指标,对水生态健康的维持、水资源的保护和永续利用具有重要的意义。Macrophytes play multiple roles in maintaining the health of aqua-ecosystem.The aquatic macrophytes, which can supply food and habitat for animals and microorganisms, intercept and filter water runoff, absorb and adsorb nutrients and heavy metals from water layer and sediment, excrete oxygen into aqua-ecosystem by photosynthesis and inhibit algal bloom through allelopathy, are very important for aqua-ecosystem health.On the other side, they are also key indicators for the health of aqua-ecosystem.Recognizing these points will help to maintain aqua-ecosystem health and protect water resource sustainably.国家自然科学基金(50809063
