Agricultural intensification plays an important role in stabilizing the food production in China,while bringing about an increasing negative impact on the soil and ecoenvironment as a result of the longterm highlyintensive land use and agricultural chemical overuse,thus leading to degradat ion of soil physical,chemical and biological properties,which are demon-strated as soil nutrient imbalance,soil acidification,pollutant accumulation,and biodiversity deterioration and posing serious stress and threat to the ecosystem per se and the environment.Under such an impact,the properties of the soil ecosystem characterized by nonlinear responses to forced conditions may show a tendency of catastrophe and trigger a more serious environmental risk.Recently,more attention has been given to researches on mechanisms of the formation and evolution,and spatiotemporal variation of soil degradation under highly-intensified agriculture,and countermeasures for its control and rehabilitation of degraded soil.