【摘 要】
：
采用“空间序列代替时间序列”的方法,将植被恢复阶段划分为演替前期、演替中期和演替后期,并测定每一演替阶段中0~10,10~20,20~30,30~40 cm土层的土壤有机碳与全氮.结果表明
【机 构】
：
祁阳县挂榜山林场,湖南 祁阳,426100中南林业科技大学理学院,湖南 长沙,410004;
论文部分内容阅读
采用“空间序列代替时间序列”的方法,将植被恢复阶段划分为演替前期、演替中期和演替后期,并测定每一演替阶段中0~10,10~20,20~30,30~40 cm土层的土壤有机碳与全氮.结果表明：1)随着演替进行,各土层的土壤有机碳与全氮均显著增加( P中期(土壤有机碳,全氮)>前期(土壤有机碳,全氮)；2)随着土层深度的增加,土壤有机碳与全氮均显著减小( P10~20 cm土层(土壤有机碳,全氮)>20~30 cm土层(土壤有机碳,全氮)>30~40 cm土层(土壤有机碳,全氮).图1,表3,参29.
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