土壤压实对农作物影响概述

Summarization on the Effect of Soil Compaction on Crops

回顾了近几十年来国内外尤其是欧美等机械化发达国家在土壤机械压实危害方面的研究成果。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。

The results of international and domestic research on soil compaction deterioration induced by vehicle traffic, especially the achievements investigated by mechanized agriculture developed countries during last decades were reviewed. 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.