利用水生昆虫评&au

Rapid bioassessment j potocol for use in streams and

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Unformatted text preview: , 是庐山主要生活水源之一, 其自然出水口经汉口峡流入东谷, 东谷溪流汇集了沿 途居民生活污水与山间小溪进入如琴湖。庐山南面有芦林湖 , 是庐山生活用水的另一主要水源。电站 大坝水库位于庐山西面, 汇集了来自如琴湖及西谷沿途的生活污水。电站大坝水库经将军河流过一级 站, 过石门涧到二级站、 三级站入八里湖。芦林湖向西的一支流与另一南面的山溪汇合形成黄龙潭 ( 如 图 1 所示) 。 图例 : o 水样取样点 " 水生昆虫取样点 1 芦 林湖 4 东 谷溪流庐山会址处 7 一 级站 2 电 站大坝南支流 5 如 琴湖 8 二 级站 3 黄 龙潭 6 大 月山水库 9 三 级站 图1 1. 3 采 样基点示意图 取样时间与方法 1. 3 . 1。时间 1996 年 5 月、 月分别采集了水生昆虫与水样。 11 1. 3 . 2 水 生昆虫取样 采 用了美国环境保护局推荐的综合定性采样法[ 1] 并略作改进 , 每样点用水网捕 4 网 , 一半在水流较急处 , 另一半在水流缓慢处。用 D 形网沿岸边捕 20 m 约 10 网 , 并随机检出水中石 块 20 块及枯枝落叶上的昆虫标本约 30 min, 使各点采获的水...
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