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湖泊科学  2015 

江苏滆湖北部湖区综合整治后夏季水体光环境研究

DOI: 10.18307/2015.0216

Keywords: 滆湖,综合整治,,沉水植物

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Abstract:

选取滆湖为研究对象,探究这一开放水体的北部湖区水体光环境是否有利于沉水植物的恢复.通过对整治后的2013年夏季(7月和8月)滆湖北部整治湖区(A湖区)和临近未整治区(B湖区)水体光环境的监测,发现在夏季7月A湖区透明度(SD)平均达39cm,显著高于B湖区,同时7月A湖区SD较8月高.夏季悬浮物和叶绿素a(Chl.a)是影响水体光环境的主要因子.7月两个湖区无机悬浮物的浓度差异是造成SD和Kd差异的原因;7月与8月A湖区Chl.a的浓度差异,是造成A湖区两个月份水体光环境差异的主要因素.与整治时(2009年)相比,7月水体光环境显著提高.整治后A湖区水深的显著增加,在一定程度上不利于沉水植物的恢复.

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