| 1. | The harms of soil compaction represented briefly as soil bulk density and penetration resistance increased , macroporosity decreased , soil physical , chemical and biological properties deteriorated , which effected on crop growing and soil structure degradation , and has become one of the principal obstacle factors for sustainable development of agriculture
土壤机械压实危害主要表现在土壤容积质量和机械阻力增加，大孔隙减少，土壤物理、化学、生物性状恶化，进而影响作物的生长发育，土壤结构发生退化，已成为当前制约农业可持续发展的障碍因素之一。 |
