新疆博斯腾湖周围白刺植物下土壤盐分组成及分布特征研究

文章在野外考察、GPS定点和土壤采样分析的基础上，借助Excel、SPSS13等统计软件对新疆博斯腾湖周围白刺植物下土壤总碱度、盐离子含量以及盐离子间相关性作了探讨。结果表明，土壤pH值为8．47（平均值），呈碱性。在0～15cm土层盐分含量2．775％，15～45cm土层盐分含量4．506％，45～70cm土层盐分含量3．096％；不同深度的盐分含量依次为15～45cm＞45～70cm＞0～15cm，各阴离子含量为 SO42-＞HCO3-＞Cl-，而CO32-在实验中未检测到，阳离子含量为K＋＋Na＋＞Ca2＋＞Ma2＋。在0～15cm土层Ca2＋与K＋＋Na＋达极显著正相关，Ca2＋与HCO3-呈显著正相关，Mg2＋与Ca2＋、K＋＋Na＋呈显著正相关，pH值与HCO3-、Mg2＋呈显著反相关；在15～45cm土层Ca2＋与K＋＋Na＋达极显著正相关，HCO3-与Cl-呈显著正相关，pH值与SO42-、HCO3-、K＋＋Na＋呈显著正相关；而在45～70cm土层Ca2＋与K＋＋Na＋呈显著正相关，SO42-与Ca2＋、K＋＋Na＋、Mg2＋呈显著正相关。

Study on Characteristics of Soil Salt Composition and its Distribution of Nitraria around the Bosten Lake

Based on the field survey, GPS fixed and soil sampling and analysis, the survey discussed, By means of the statistical software Excelland SPSS.13, the total alkalinity of the soil, the content of salt ions and correlation between salt ions of Nitraria around the Bosten Lake. Results showed that： soil pH value was 8.47 （ average）, alkaline. 0 ~ 15cm soil salt content was 2.775%, 15 ~ 45cm soil salt content was 4.506%, and 45 ~ 70cm soil salt content was 3. 096%. The salt content of different depths in turn were 15 ～ 45cm〉 45 ～ 70cm〉 0 ～15cm, each anion content was SO4 2-〉 HCO3-〉 Cl-, CO3 2-is not detected in the experiment, the cation content was K＋＋Na＋〉Ca2 ＋〉Ma2 ＋. In the 0 ～ 15cm soil layer, Ca2＋and K ＋＋Na ＋had very significant correlation;Ca2 ＋and HCO3-had significant positive correlation, Mg2 ＋and Ca2 ＋, K＋＋Na＋was a significant positive correlation, and pH value and HCO3-, Mg2 ＋ was a significant inverse correlation;for the 15 ～ 45 cm soil, Ca2 ＋ and K ＋＋ Na ＋had very significant positive correlation, HCO3-and Cl-was a significant positive correlation, pH value and SO4 2-, HCO3-, K＋＋Na＋had significant positive correlation;In 45 ～ 70cm soil, Ca2 ＋and K＋＋Na＋was significantly posi-tively related, SO4 2-and Ca2 ＋, K＋＋ Na＋, Mg2 ＋ showed a significant positive correlation.