channelisation造句

• Steep, stony hill streams occur widely, but few lowland streams have escaped from severe human impacts e . g . pollution, channelisation, etc . programme
  到处可见陡峭及布满石卵的山涧，但甚少低地溪流能逃过污染及水道工程等人为活动的严重影响。
• An eia study is required before a major channelisation project can be carried out . the advice of epd and afcd will also be sought on environmental and ecological matters respectively
  在进行所有大型河道工程前，均须进行环境影响评估，环保署及渔护署分别会就环境及生态事宜提供意见。
• The alteration and conversion of natural streams to drainage channels has enhanced the natural capacity of freshwaters to assimilate volumes of floodwater and surface drainage, but channelisation also results in a loss of ecological capital stock since drainage channels cannot be colonised by normal stream assemblages of flora and fauna
  有部分天然溪涧已改成渠道，这提高了淡水河道吸纳洪水及地面排水的天然能力，但亦损害了生态方面的资产，因为渠道并非如溪涧一般可以供动植物栖息生长。