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草原旱灾
释义
草原旱灾
Encyclopedia
农学
草原旱灾
释
drought disaster
草原旱灾
因长期降水量较少,致使土壤水分减少,牧草体内及根部缺少水分,导致牧草不能正常返青或影响牧草正常生长和发育,使得草原生物量减少、生物多样性降低,以及河流缺水和人畜饮水受限,使大量家畜掉膘甚至死亡,造成重大经济损失的灾害,属于农业干旱的范畴。
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natural monopoly industry
natural morphism
natural moving frame
natural necessity
natural norm
Natural novel
natural nuclear reactor
natural nucleotide
natural nuclide
natural number
natural number of a logarithm
natural number sequence
natural numbers object
natural object
natural object, natural scene
natural object photography
natural operation
natural operator
natural optical background
natural order
natural ordering
natural organic compound
natural oscillation
natural parameter
natural parametrization
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