CAJ | 학술논문

采用离心法提取土壤中的重力水、毛管水和有效膜状水，对比研究了不同形态水中的化学元素组成差异。结果表明，土壤中不同形态水的化学成分存在较大差异。其中，有效膜状水中 Ni、Zn、Cr、Cu 和 Cd 的含量比毛管水中高，但 Fe、As、V 和 Sr 的含量无明显差异，这与粘土矿物表面的重金属解吸作用及重金属迁移能力等因素有关。有效膜状水中 K、Ca、Na 和 Mg 的含量较毛管水中无明显变化。受下渗水对土壤的淋滤作用及元素迁移能力等因素的影响，重力水中 Ni、Zn、Cr、Cu 和 Cd 含量较毛管水中高。与重金属元素表现不同，土壤重力水中 K、Ca、Na 和Mg 的含量明显低于毛管水和有效膜状水。
채용리심법제취토양중적중력수、모관수화유효막상수，대비연구료불동형태수중적화학원소조성차이。결과표명，토양중불동형태수적화학성분존재교대차이。기중，유효막상수중 Ni、Zn、Cr、Cu 화 Cd 적함량비모관수중고，단 Fe、As、V 화 Sr 적함량무명현차이，저여점토광물표면적중금속해흡작용급중금속천이능력등인소유관。유효막상수중 K、Ca、Na 화 Mg 적함량교모관수중무명현변화。수하삼수대토양적림려작용급원소천이능력등인소적영향，중력수중 Ni、Zn、Cr、Cu 화 Cd 함량교모관수중고。여중금속원소표현불동，토양중력수중 K、Ca、Na 화Mg 적함량명현저우모관수화유효막상수。
This paper investigated the different element composition among gravitational water,capillary water and a-vailable hygroscopic water in soil extracted by centrifugation.The results indicated distinction among the three fractions of soil water.Available hygroscopic water had higher concentrations of Ni,Zn,Cr,Cu and Cd than those of capillary water,but the content of Fe,As,V and Sr showed no differention.It was related to desorption and migration ability of heavy metal in clay minerals.Similar concentrations of K,Ca,Na and Mg were shown between a-vailable hygroscopic water and capillary water.There were higher content of Ni,Zn,Cr,Cu and Cd in gravitational water than capillary water,which were induced by interflow leaching on soil.Gravitational water had lower concentrations of K,Ca,Na and Mg than capillary water and available hygroscopic water,which was different from the performance of.heavy metal.