中文摘要：

为探明辽宁省森林土壤与植物中钙元素的空间分布特征，选择3种典型树种（油松，樟子松和柞树）为研究对象，在系统的野外调查和土壤及叶片（针叶）采集与测试基础上，采用统计对比和相关性分析方法对土壤水溶性钙和植物叶片全钙含量的东西向分布特征及土壤与植物叶片钙元素的相关性进行了研究。结果表明：辽东与辽西森林土壤间水溶性钙含量有较大差异，辽西表层和亚表层土壤水溶性钙含量分别为0．037-0．072gkg-1和0．047～0．078gkg-1；辽东表层和亚表层土壤水溶性钙含量分别为0．025—0．039gkg-1和0．019—0．038gkg-1。相应地它们的植物叶片全钙含量也有较大的差异，辽西和辽东分别在4．663～10．156g kg-1和2．436—2．700gkg-1之间。辽西林地土壤水溶性钙含量与植物叶片中钙含量均高于辽东，由辽西至辽东呈下降趋势，这与降水量增加有关。3种树种林地植物叶片全钙含量与土壤水溶性钙含量均呈正相关（油松P〈0．05，樟子松和柞树P〈0．01）。

英文摘要：

To investigate the spatial distribution characteristics of calcium in forest soil and plant, this paper selected three kinds of typical tree species （Chinese pine, mongolian pine and oak tree） as study objects. And then based on the systematic field investigation and the acquisition and test of soils and leaves （needle）, this paper studied the distribution characteristics of soil water-soluble calcium and total calcium content of plant leaf in an east-west direction as well as the correlation between soil and plant leaves. The results showed that the difference in soil water-soluble calcium content between eastern Liaoning and western Liaoning was significant, and the content of soil water-soluble calcium in soil surface and sub-surface was 0.037 - 0.072 rag g-l, 0.047 - 0.078 mg g-1, respectively, in western Liaoning. The contents of soil water-soluble calcium in soil surface and sub-surface were 0.025 - 0.039 mg g-1 and 0.019 - 0.038 mg g-1, respectively, in eastern Liaoning. Accordingly, the total content of calcium in plant leaves also had a great difference, and the ranges in western Liaoning and eastern Liaoning were 4.663 - 10.156 mg g-1 and 2.436 - 2.700 mg g-1, respectively. The contents of water-soluble calcium in forest soil and plant leaves in western Liaoning were higher than those in eastern Liaoning, and showed downward trends from western Liaoning to eastern Liaoning, which was associated with the increased rainfall. The total calcium contents of forest plant leaf and soil water-soluble calcium content for three kinds of trees were positively correlated （Chinese pine P 〈 0.05, mongolian pine and oak tree P 〈 0.01）