为了探讨生物治理措施对强度红壤侵蚀区土壤质量的影响,对以草促林和乔灌混交2种治理措施下的土壤质量进行比较结果表明:强度红壤侵蚀群落治24a后,土壤的结构、渗透性、蓄水性能、养分特征、微生物性质及其抗侵蚀能力得到了改善,但土壤养分的恢复程度不高,养分的恢复滞后于物理性质的恢复;质量综合指数分析显示,以草促林治理群落的土壤质量综合指数为0.38,恢复程度较低,乔灌混交治理群落达到了0.80,恢复程度较高;2种治理措施下土壤质量的恢复程度差异较大,体现了不同治理措施恢复效果的差异.%The research was carried out at the severely-eroded area of granite red soil located in Changting county, Fujian Province.Soil quality was improved by two kinds of biological restoration measures, grass-planting, mixed arbor and shrub-planting. The results showed that the soil anti-erosion, water holding, transmission capacity, chemical properties and microbe quality increased in different restoration measures. However the restored degree (DR) of chemical properties was low, the restoration rate of chemical properties was lower than that of physical properties. The composite indexes of soil quality of grass-planting and shrub-planting were separately 0.38 and 0.80. The difference of DR showed the different effects of grass-planting and shrub-planting.
展开▼
