求下面一段话的翻译（初二英语)

Question

Their large root systems trap waste and help reduce the loss of soil.Now,poplar trees may become important tools for cleaning the environment.Some scientists think poplar trees can be a valuable resource to remove poisonous substances from the soil.

Answer 1

它们强大的根系可以吸收垃圾，并有助于减少土壤流失；白杨树在清洁环境方面会变成非常重要的工具。一些科学家认为白杨树在去除土壤有毒物质方面是非常有价值的