The increasing use of dried animal waste as a substitute fuel has also hurt the soil because this valuable soil conditioner and source of plant nutrients is no longer being returned to the land.
人们开始越来越多地使用脱水后的动物粪便作为替代燃料，这同样会损害土壤，因为这些珍贵的土壤改良剂和植物养分的来源将无法再回归到土壤之中。
However, for a while the land around the city acted as a natural air conditioner, keeping the air cool through evaporation of moisture from the ground.
不过，有一段时间，莫斯科市周围的土地起到了自然空调的作用，通过从地面蒸发湿气保持空气凉爽。
Ideally this should be spread on land as an organic fertiliser and soil conditioner, however great care will be required to ensure that this does not become a further source of soil contamination.
从理想上来说，这些污泥应该传布在土壤中成为有机肥和土壤调节剂，然而，还必须非常谨慎而不至于成为污染土壤的根源。
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