燕岭湿地出水排渠水生态系统构建研究  

Study on Establishment of Water Ecosystem of Outflow and Drainage Channels in Yanling Wetland

作　　者：毛雪慧 林静 李赫龙 Mao Xuehui;Li Jing;Li Helong(Shenzhen Biyuan Environmental Protection Technic Co.Itd.,Shenzhen,Guangdong,518000,China)

机构地区：[1]深圳市碧园环保技术有限公司,广东深圳518000

出　　处：《绿色科技》2019年第16期120-125,共6页Journal of Green Science and Technology

摘　　要：针对东莞市燕岭人工湿地出水排渠生态系统不完善、水体自净能力差的问题,在对湿地出水排渠的水质及水生态系统调查的基础上,结合现场实际情况,提出了技术方案:通过设置拦水坝,抽水降低河道水位,控鱼除螺工程,沉水植物种植工程来构建人工湿地出水排渠的水生态系统。控鱼除螺工程采取了人工捕捞、设置渔网、茶铂清塘、生物操纵等技术,各有优缺点。沉水植物采用三种种植方式,分别为种植盘、种植袋、插秧式种植,其中插秧法和种植槽法的水草长势均很好。经过半年的生长,湿地水渠水质得到明显改善,沉水植被基本建立,狐尾藻成片布满河道,苦草生根发芽蔓延开来,水体清澈透底。该工程实施后,河道水体透明度明显增大,水生生物多样性及丰度增加明显。研究结果可为类似河道的生态治理工作提供借鉴。In view of the imperfect ecosystem of the Yanling artificial wetland in Dongguan City and the poor self-purification ability of the water body,based on the investigation of the water quality and water ecosystem of the wetland drainage channel,combined with the actual situation of the site,the technical plan was formulated.By setting up a dam,the water level of the river was reduced by pumping water;the snail removal project was controlledthe water ecosystem of the constructed wetland drainage channel was constructed by submerged plant planting project.The fish control and snail removal project has adopted the techniques of artificial fishing,setting fishing nets,tea platinum clearing ponds,biological manipulation,etc.,each with advantages and disadvantages.The submerged plants adopt three kinds of planting methods,namely,planting trays,planting bags,and transplanting planting,and the growth of water plants with transplanting method and planting trough method is very good.After half a year of growth,the water quality of the wetland canal has been significantly improved;the submerged vegetation has been basically established;the foxtail algae have been covered with rivers and the roots of the bitter grass have spread and the water is clear and transparent.After the implementation of the project,the transparency of the river water body increased significantly,and the aquatic biodiversity and abundance increased significantly.The research results can provide reference for ecological management work similar to rivers.

关 键 词：水生态构建 河流 人工湿地 生物操纵 沉水植物恢复 

分 类 号：S522[农业科学—作物学]