muddy bottom造句

• Estuaries , mangrove , swamps , coral reef , rocky reef and sandy or muddy bottom
  河口红树林沼泽珊瑚礁岩礁沙质或泥状海底
• American plant with roundish heart - shaped or kidney - shaped leaves ; usually rooted in muddy bottoms of ponds and ditches
  一种美国水生植物，叶肾形或圆心形，佛焰苞具有短的柄或无柄；通常扎根在池塘和水沟的底部淤泥中。
• The comparison curves of the abundance and biomass indicate that the macrobenthic community in the northern muddy bottom area has been disturbed moderately . there was no disturbance detected in culturing area , but the abundance of some species with small size was dominant there
  丰度和生物量比较曲线( abc曲线)表明，湾北部软底区站位的底栖群落处于中等干扰状态，其他海域站位的底栖群落尚未表现出受干扰的状况。
• The ecological study of macrofauna was conducted on four typical sampling stations selected in the northern muddy bottom area of jiaozhou bay , estuary of dagu river , culturing and nearby area in hangdao in mar . , jun . , aug . and dec . , 2002 . abundance and biomass of macrofauna were investigated by quantitative study . the macrobenthic community structure and biodiversity were analyzed through multivariate statistic analysis
  本研究分别在胶州湾北部软底区、大沽河口、黄岛养殖区及养殖区邻域选取四个典型站位，于2002年3月、 6月、 8月和12月野外采样，对大型底栖动物进行了定量研究，采用多元统计方法分析了群落结构和生物多样性，探讨了底栖生物群落与环境因子的关系；用丰度和生物量比较曲线法分析大型底栖生物群落对自然和人为扰动产生的响应。