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我国幅员广阔,自然条件复杂多样,农业生产历史悠久,在复杂的自然条件和劳动人民长期生产活动的影响下,土壤及土壤特性、土壤利用和农业生产特征,产生了形形式式的变异。农业土壤区划的重
China has a vast territory with complex and diverse natural conditions and a long history of agricultural production. Under the complex natural conditions and the long-term productive activities of working people, the characteristics of soil and soil, soil utilization and agricultural production have produced a formal variation. Agricultural soil zoning weight