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tier soil
释义
tier soil
Encyclopedia
农学
娄土
释
tier soil
塿土
自然褐土经过长期耕种熟化,施加大量土粪或富含有机质的农家肥,并由风尘自然沉降而形成的一种人为土壤。在中国第一次全国土壤普查(1959)中命名,在中国土壤分类暂行草案(1978)和第二次全国土壤普查分类(1988)中归入半淋溶土土纲,褐土土类、塿土亚类;在中国土壤系统分类(1991)中,归入人为土纲,旱耕人为土亚纲,塿土土类;在美国土壤系统分类中,相当于新成土;在联合国世界土壤图图例(1988)中,相当于人为土。曾称堆垫褐土。
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