| 书目名称 | Mechanics and Related Processes in Structured Agricultural Soils | | 编辑 | W. E. Larson,G. R. Blake,S. C. Gupta | | 视频video | | | 丛书名称 | NATO Science Series E: | | 图书封面 |  | | 描述 | Agricultural soils are subjected to many applied mechanical stresses that influence their behavior. Stresses arise from tillage machines, seeders and chemicals applicators, tractors, and equipment for harvest and transport. Applied stresses may compact or loosen the bulk soil. Micro sections of soil (aggregates or clods) may be compacted during tillage while the bulk soil is loosened. Because most granular soils are combined into structural units of varying sizes with different strengths and properties, prediction of the effect of stresses on the behavior of bulk soils is difficult. The basic strength properties of soil are determined by many fac tors: the size distribution of particles, chemical and mineralogical properties of inorganic clay fraction, the organic matter content and composition, the water content and the stress history. These factors combine and interact to produce many possible behavior patterns. Changes in structure of the soil from applied stresses and biologi cal reactions may profoundly influence storage and transmission of water, heat, and air, and the mechanical resistance to penetration by plant roots. They may also affect the traction of vehicles. Manipu | | 出版日期 | Book 1989 | | 关键词 | Tillage; agriculture; cohesion; distribution; energy; paper; reactions; soil; soil mechanics; transport; water | | 版次 | 1 | | doi | https://doi.org/10.1007/978-94-009-2421-5 | | isbn_softcover | 978-94-010-7591-6 | | isbn_ebook | 978-94-009-2421-5Series ISSN 0168-132X | | issn_series | 0168-132X | | copyright | Kluwer Academic Publishers 1989 |
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发表于 2025-3-21 16:23:26
