一、我国农业生产大跃进为土壤分类研究创造了优越条件 1958年大跃进以来,在党的领导下,发动广大农民技术干部与专业人员协作,迅速地完成了我国以耕地为主的土壤普查和鉴定工作。通过全国土壤普查鉴定工作,广泛地总结了我国农民在长期生产实践中所积累起来的认识、鉴别、利用和改良土壤的经验,不仅为增加农业生产提供了科学依据,而且为发展土壤分类研究提供了大量资料。我国是古老的农业国,远在三千年以前就开始了土壤耕作,加之幅员辽阔,地跨寒温带到热带,有平原,有高原,有沼泽,有沙漠,自然条件复杂,蕴蓄着多种多样的变化,土壤种类多,作物种类多,而辛勤智慧的农民通过深耕、施肥、灌排、保墒、轮作换茬、晒垡熏土、客土、平整土地、修筑梯田等多种多样的综合技术措施,积累了丰富的改 I. Great Leap Forward in Agricultural Production Has Created Superior Conditions for Soil Classification Research Since the Great Leap Forward in 1958, under the leadership of the party, we have launched a large number of farmer technical cadres in collaboration with professionals to promptly complete the soil census and the soil-based survey in China Identification work. Through the work of national soil census and appraisal, the experiences accumulated by our peasants in long-term production practice are summarized. The experience of identifying, using and improving soil not only provides a scientific basis for increasing agricultural production, but also provides the basis for the development of soil classification research A lot of information. China is an ancient agricultural country farmed three centuries ago with soil cultivation. In addition, with its vast territory covered with cold and temperate to tropical patches of plain, plateau, swamp and desert, the natural conditions are complex and contain a variety of Variety, variety of crops and many kinds of crops. Farmers with wisdom and wisdom can adopt a variety of comprehensive technical measures such as deep plowing, fertilization, irrigation and drainage, preserving soil moisture, crop rotation, soil drying, soil pick-up, land leveling, , Has accumulated a wealth of changes