烟台海岸带防护林下土壤理化性质分析

通过对烟台海岸带防护林下48个土壤样品的理化性质进行测定，分析土壤pH值、有机质含量与其速效养分含量的相关性，并探讨防护林的健康状况．结果表明：烟台海岸带防护林下土壤总体上呈酸性，有机质百分含量、碱解氮、速效钾均属最低等级，速效磷属较低等级．有机质与碱解N含量呈极显著正相关；与速效P呈正相关，但不显著；与速效K星负相关．土壤pH值与碱解N含量呈负相关但不显著；与速效P呈显著正相关；与速效K呈极显著正相关；pH与有机质呈负相关．这一研究对烟台海岸带防护林的进一步建设具有重要意义．

ANALYSIS OF SOIL PHYSICAL AND CHEMICAL PROPERTIES OF THE COASTAL PROTECTION FOREST IN YANTAI

We analysed the physical and chemical properties of 48 soil samples obtained from the coastal protection forest in Yantai to show the forest＇s living conditions. Furthermore, we studied the correlations between the organic matter, pH value and available nutrients. Results show that the soil is acid in general, organic matter, hydrolyzed nitrogen, available potassium all are the lowest level and available phosphorus is the lower level. The correlation between organic matter and hydrolyzed nitrogen is significantly positive, the correlation between organic matter and available phosphorus is positive, and the correlation between organic matter and available potassium is negative, pH shows negative correlation with organic matter, hydrolyzed nitrogen, positive correlation with available phosphorus, and significant positive correlation with available potassium. The study shows great significance for further construction of the coastal protection forest in Yantai.