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人为活动对冈曲河大型底栖动物空间分布的影响

渠晓东 张 远 吴乃成 唐 涛 蔡庆华

渠晓东, 张 远, 吴乃成, 唐 涛, 蔡庆华. 人为活动对冈曲河大型底栖动物空间分布的影响[J]. 环境科学研究, 2010, 23(3): 304-311.
引用本文: 渠晓东, 张 远, 吴乃成, 唐 涛, 蔡庆华. 人为活动对冈曲河大型底栖动物空间分布的影响[J]. 环境科学研究, 2010, 23(3): 304-311.
QU Xiao-dong, ZHANG Yuan, WU Nai-cheng, TANG Tao, CAI Qing-hua. Effects of Anthropogenic Disturbance on the Spatial Distribution of Macroinvertebrate Communities in the Gangqu River of Shangrila[J]. Research of Environmental Sciences, 2010, 23(3): 304-311.
Citation: QU Xiao-dong, ZHANG Yuan, WU Nai-cheng, TANG Tao, CAI Qing-hua. Effects of Anthropogenic Disturbance on the Spatial Distribution of Macroinvertebrate Communities in the Gangqu River of Shangrila[J]. Research of Environmental Sciences, 2010, 23(3): 304-311.

人为活动对冈曲河大型底栖动物空间分布的影响

基金项目: 国家自然科学基金重点项目(30330140);中国科学院知识创新项目(KZCX2-YW-427);国家水体污染控制与治理科技重大专项(2008ZX07526-001-02)

Effects of Anthropogenic Disturbance on the Spatial Distribution of Macroinvertebrate Communities in the Gangqu River of Shangrila

  • 摘要: 为监测人为活动对高海拔山区河流的影响,以香格里拉冈曲河为例,应用多维统计分析与排序分析,探讨大型底栖动物群落对人为活动的响应. 研究表明,冈曲河受到低浓度重金属污染,农业活动和水体富营养化程度相对较轻,总体水质状况符合国家地表水环境质量标准(GB3838—2002)Ⅰ,Ⅱ类水质标准. 聚类分析显示,大型底栖动物群落可分为4组:组Ⅰ(北支翁水河)与组Ⅱ(南支格咱河)采样点受人为活动的影响最轻;组Ⅲ采样点主要受开矿和农业活动影响;组Ⅳ采样点受重金属污染相对较重. 4组采样点在无度量多维标定法(NMS)排序轴上的分布差异明显,组Ⅰ与组Ⅱ采样点体现出空间分布差异,而人为活动主要影响组Ⅲ与组Ⅳ采样点. 随河级增加,底栖动物的群落结构除受到水深、河宽、水温、浊度和海拔高度等环境因子的影响外,组Ⅲ与组Ⅳ采样点影响底栖动物群落退化的主要因素为Cu,Pb和NO-3-N. 石蛭科和毛缘蛾蚋为组Ⅰ采样点的指示种;叉襀和倍叉襀等敏感类群为组Ⅱ采样点的主要指示种;组Ⅲ的指示种为中耐污种短石蛾和蜉蝣,以及强耐污种寡毛类;涡虫为组Ⅳ采样点的指示种,表明涡虫具有较高的重金属污染耐受性.

     

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出版历程
  • 收稿日期:  2009-07-15
  • 修回日期:  2009-11-16
  • 刊出日期:  2010-03-25

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