土壤因子与红松幼苗株高及年增长高度的相关性研究

Correlation Research of Soil Factor on Korean Pine Seedlings in Plant Height and Increase Height

以种植在小五台、北小店、离石和关帝山的红松为研究对象,通过实地调查,现场采样,系统分析研究目前4个不同试验地红松幼苗的生长状况。通过对红松幼苗的株高、年增长高度的测定、对比分析,并结合4个不同试验地的土壤特性分析其对幼苗生长的影响,结果表明:4个种植地红松株高及年增长高度存在显著差异,其中株高平均值从大到小依次为关帝山>离石>北小店>小五台,均值分别为42.0、32.4、28.4、25.7 cm。相关分析表明,土壤因子中含水率、p H值、有机质、有效磷和碱解氮均和红松株高存在显著相关性。

Taking Korean pine in the Xiao Wu Tai ,Bei Xiao Dian ,Li Shi and Guan Di Shan as the research object ,through field investigation and field sampling, the paper analyzed the Korean pine seedling growth in the four different testbed.Through analyzing the plant height and the annual growth height ,and combined with soil characteristics of four different testbed ,it analyzed its influence on seedling growth.The results showed that the Korean pine of four gardens had significant differences in plant height and annual growth height.The average plant height from big to small in turn was Guan Di Shan〉Li Shi〉Bei Xiao Dian〉Xiao Wu Tai,the average value was 42.0 cm, 32.4 cm, 28.4 cm and 25.7 cm,respectively.Correlation analysis showed that the plant height had significant correlation with soil moisture content,pH value, organic matter, available phosphorus and alkali solution nitrogen.