凤阳山常绿阔叶林土壤养分特性

对凤阳山自然保护区常绿阔叶林的不同坡向（东坡、西坡）与不同层次（0～10cm，10～30cm，30～60cm）土壤养分进行了测定分析。结果显示：东坡和西坡只在pH、铵态氮、有效磷方面表现出较强的差异性，其余差异均不显著，西坡和山谷在pH、铵态氮、全磷上存在差异显著；各养分因子中只有pH随着土层加深而增大，有机质、全氮、全磷和速效养分指标均表现出A层〉B层〉C层的趋势，且AB层、AC层差异显著；各营养元素间的相关性表现为，pH与多数养分均表现为极显著的负相关，有机质、全氮、水解氮、有效磷、速效钾之间多表现为极显著的正相关，全磷与全氮、C／N与有机质也表现为极显著的正相关。综合土壤主要肥力因子发现，东坡土壤质量优于西坡，能较好地满足植物生长对养分的需求。

Soil Characteristics of Evergreen Broad-Leaved Forest in Fengyang Mountain

Soil nutrients on different slope(east slope,west slope) and soil horizon(0-10cm,10-30cm,30-60cm) of evergreen broad-leaved forest were measured and analyzed in Fengyang mountain Nature Reserve.The results showed that only in pH,ammonium nitrogen and available phosphorus the East Slope and the West Slope have significant differences,and the remaining nutrients are not obvious.While the West Slope and Valley exist significant differences in pH,ammonium nitrogen,total phosphorus;Within soil nutrient,only the pH increased with the depth of the soil horizon,while organic matter,total nitrogen,total phosphorus and available nutrient show A horizon>B horizon >C horizon respectively,and the A layer is significantly different from the B layer and the C layer at P = 0.05 level;Relevant analysis between various nutrients shows that pH with the most nutrients have remarkable inverse correlation,Both between the organic matter,the total nitrogen,the hydrolisis nitrogen,the available phosphorus,the available potassium and the total phosphorus with the total nitrogen,the C/N with the organic matter all display extremely remarkable correlation.We found from soil main fertility that the soil quality in east slope is higher compared to west slope,which can goodly satisfy the nutrients plant need.