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一、田间保管在大平原的中部和北部,通过提高降雪的拦集,对增加水量储存具有颇大的潜力.一个冬天由田间积雪所储存的土壤水,就相当于夏季休闲所积累的水量
First, keeping the fields in the central and northern parts of the Great Plains has great potential for increasing water storage by increasing the amount of snowfall, and the amount of soil water stored by field snow in one winter is equivalent to the amount of water accumulated in summer recreation