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winter drought of pasture
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winter drought of pasture
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农学
黑灾
释
winter drought of pasture
黑灾
冬春季节积雪过少或无积雪,牲畜长期缺乏饮水,造成膘情下降、母畜流产、疫病流行,甚至大批牲畜死亡的灾害。与冬春因长时期积雪过多过厚而发生的“白灾”相对。又称渴灾。
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