【摘要】 华北花岗片麻岩山区土壤严重退化,恶劣的土壤环境是该地区植被恢复的限制性因子.利用不同配比的化肥对试验区内土壤进行促成技术研究,结果表明:各种配比的肥料间,对土壤有机质和营养元素的影响(以全P释放量为例),以NPK1和NPK2处理效果最好,其分别提高风化速率29.68%和31.21%;对土壤粒径的影响(以<1 mm粒径土壤重量百分比为例),同样以NPK1和NPK2处理效果最好,其分别提高风化速率30.50%和24.81%.综上分析可以说明,各种配比的化肥对土壤促成起到了一定的作用,试验区内土壤正朝成熟土壤方向演化.更多还原

【Abstract】 The soil in granitic gneiss mountains in North China is seriously degraded.Poor soil is the limiting factor in vegetation recovery.Mature technology of soil has studied with different ratio of chemical fertilizers used in soil test area.The results show that:among various ratio of fertilizer,NPK1 and NPK2 have the best impact on the soil organic matter and nutrients(in all P release as an example),and their weathering rates were increased by 29.68% and 31.21%;same with soil particle size(to<1mm size of soil weight as an example),the NPK1 and NPK2 also have best effects and improve the weathering rate up to 30.50% and 24.81%.In summary,analysis illustrates that the various ratio of chemical fertilizer contribute to play a certain role on soil.The soil in the test area were evolving in the direction of mature soil.更多还原