浅析轮藻植物与水体富营养化的关系

近几十年来，轮藻植被从许多富营养化的浅水湖泊中逐渐消失。然而作为浅水湖泊稳态转换模型的代表植物，轮藻植物被证明在湖泊水体的修复中有着重要的作用和功能，因为轮藻植被通过对水体浊度和营养水平的多重反馈机制能稳定湖泊清水稳态。基于此，介绍了轮藻植物及其在水体的分布和浅水湖泊稳态转换概念模型，重点阐述了轮藻与水体富营养化的关系，并介绍了影响轮藻生长繁殖的环境因子，分析了国内外轮藻生态学研究的现状及其特点

CHAROPHYTE PLANTS VERSUS EUTROPHICATION OF WATER BODY

In recent decades，eutrophication had led to decline in charophyte vegetation in many shallow lakes throughout the world.However，charophytes，by several mechanisms，could positively affect water transparency and be an efficient nutrient trap，whose ecological significance in re establishment of vegetation and maintenance of clear water stable state in shallow lakes had been demonstrated.Therefore，charophytes often play an important role in many restoration projects carried out to reduce the negative effects of eutrophication.However，little attention was paid to charophyte plants and ecological researches on them were far behind that on vascular aquatic plants in China.In order to elaborate the essentiality to evolve the charophyte ecology in China，this text firstly gave brief introduction of charophyte plants，reviewed alternative stable states between clear high vegetation and turbid low vegetation in shallow lakes，focused on the significance of charophyte in eutrophic restoration of shallow lakes，and reviewed these environmental factors which affect their growth and reproduction.Finally some suggestions in relation to peculiar distribution of charophyte plant in China were given on the studies to be carried out in ecology of charophyte plants