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摘要:
一、农业地质的基本概念及研究现状 从1980年以来,笔者在四川的支农实践中发现了地质背景对大农业的制约作用,特别是岩石、土壤、植(动)物系统具有连续多变的动态性规律,能揭示出地质背景的资源性价值及理论意义。因此摒弃了农业地质旧概念,试提出完全不同的新含义。 (一)农业地质含义由来及其特点 “农业地质”一词是19世纪中期欧洲地质学家法鲁(F. A. Fellow)和李希霍芬(F. V. Richthofen)等仅用于研究土壤形