| The plant needs suitable soil bulk density for the growth.The soil physical,chemical and biological properties deteriorated when the soil bulk density is higher than normal.At the same time the high soil compaction affects the available nutrient contents,the soil enzyme activities and the number of soil biota.The growth of plant will be inhibited.At present high soil compaction has become one of the principal obstacle factors for sustainable development of Chinese agriculture.In this article we have described the relation of soil bulk density and soil physical,chemical and biological properties,the response of plant to high soil compaction.The research prospect of soil compaction is also discussed. |