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在日本,已经提出了若干种水稻土分类方案,但还未取得一致意见。鸭下宽(1940)是这一领域的先驱者。他最先把土壤学的现代概念引入水稻土分类,并根据以地下水位
In Japan, several paddy soil classification schemes have been proposed but no consensus has been reached. Duck wide (1940) is a pioneer in this area. He first introduced the modern concept of soil science to paddy soil classification, and based on the groundwater level