CAJ | 학술논문

以不同种植年限的紫穗槐根际和非根际土壤为试验对象，采用 Tiessen 等修正后的 Hedley 土壤磷素分级方法，对其有效磷、全磷及不同形态磷组分进行了分析研究。结果表明，不同年限根际土壤有效磷含量均高于非根际土壤。从无机磷含量特征可以看出除了 H2 O-Pi（水溶磷）和 Conc．HCl-Pi（浓 HCl 提取无机磷）外，其余无机磷均是 Y60的含量最高。不同形态磷：除 Y28的 NaHCO3-Po（0．5 mol／L NaHCO3提取有机磷）外，其他株龄的 NaH-CO3-Pi（0．5 mol／L NaHCO3提取无机磷），NaOH-Pi（0．1 mol／L NaOH 提取无机磷），NaHCO3-Po，NaOH-Po（0．1 mol／L NaOH 提取有机磷），Conc．HCl-Po（浓 HCl 提取有机磷）含量均是根际高于非根际土壤相应磷指标含量。根际土壤有效磷与 Dil．HCl-Pi 和 Conc．HCl-Po 含量显著相关（P ＜0．05），H2 O-Pi 与 Total-P 含量显著相关（P ＜0．05），根际和非根际土壤有效磷与 pH 值和根际全磷含量相关性均不显著（P ＞0．05）。
이불동충식년한적자수괴근제화비근제토양위시험대상，채용 Tiessen 등수정후적 Hedley 토양린소분급방법，대기유효린、전린급불동형태린조분진행료분석연구。결과표명，불동년한근제토양유효린함량균고우비근제토양。종무궤린함량특정가이간출제료 H2 O-Pi（수용린）화 Conc．HCl-Pi（농 HCl 제취무궤린）외，기여무궤린균시 Y60적함량최고。불동형태린：제 Y28적 NaHCO3-Po（0．5 mol／L NaHCO3제취유궤린）외，기타주령적 NaH-CO3-Pi（0．5 mol／L NaHCO3제취무궤린），NaOH-Pi（0．1 mol／L NaOH 제취무궤린），NaHCO3-Po，NaOH-Po（0．1 mol／L NaOH 제취유궤린），Conc．HCl-Po（농 HCl 제취유궤린）함량균시근제고우비근제토양상응린지표함량。근제토양유효린여 Dil．HCl-Pi 화 Conc．HCl-Po 함량현저상관（P ＜0．05），H2 O-Pi 여 Total-P 함량현저상관（P ＜0．05），근제화비근제토양유효린여 pH 치화근제전린함량상관성균불현저（P ＞0．05）。
The rhizosphere and bulk soil of Amorpha fruticosa established in different years were studied.A-vailable phosphorus (P),total P and P fractions were analysed using the method of Hedley which was a soil P classification method revised by Tiessen.Available P levels in the rhizosphere were higher than those out of the rhizosphere.The Y60 had the highest inorganic P content than the other except for H2 O-Pi and Conc.HCl-Pi. The NaHCO3-Pi,NaOH-Pi,NaHCO3-Po,NaOH-Po,and Conc.HCl-Po in the rhizosphere were higher than those in bulk soil in different aged Amorpha except for NaHCO3-Po in Y28 .Available P in the rhizosphere had a significant relationship with Dil.HCl-Pi and Conc.HCl-Po.H2 O-Pi and total P had a significant relation-ship.Available P and pH in the rhizosphere and out of the rhizosphere did not have a significant relationship with total P in the rhizosphere.