滇池湖滨带湿生乔木湿地构建技术研究

采用以草本植物为主构建的湖滨湿地存在的主要问题是挺水植物繁殖速度快,生物量大,如每年不及时对死亡植株进行收割,会加快湖泊淤积速度,对湖泊水体造成二次污染;大面积湿地挺水植物的管护和收割,势必造成湿地管理强度和费用大幅提高。针对上述问题,文章重点介绍了在滇池草海湖滨带中以湿生乔木植物代替草本挺水植物的湖滨湿地构建技术现场试验研究成果,在湖滨带基底修复的基础上,选择垂柳、滇杨、中山杉、水杉、池杉和竹子等湿生植物开展现场试验,研究结果推荐适应能力较强、成活率较高和景观效果好的垂柳、中山杉为滇池湖滨带湿生乔木湿地构建的主要树种,为受损湖泊湖滨带生态修复提供借鉴。

Lakeshore Wetland Construction in Dianchi Lake:Technology of Planting Humidogene Arbor

In construction of lakeshore wetlands in Dianchi Lake,emergent aquatic plants,mostly herbaceous plant featuring fast growing,has been planted massively,however,which ought to be cut every year,otherwise the dead plant in great amount,with high biomass,brought about secondary pollution.The plant-cutting involving cumbersome and time-consuming work added in workload and cost in managing the wetland.Experiments were thus conducted to develop a technology of planting arbor trees in the lakeshore which would substitute for the existing herbaceous plant.With the preparatory ground work along the lakeside done,trees like weeping willow,Yunnan poplar,Zhongshan cedar,metasequoia,taxodium and bamboo were planed on trial,among which weeping willow and Zhongshan cedar have been selected as the fittest due to their strong viability,as well as their better visual effect for lakeshore landscape.