【摘要】 在中国科学院红壤生态试验站的优化农业生态模式的长期定位试验地,以恢复14年的常绿针叶林地(马尾松林)、落叶阔叶林地(小叶栎)、针阔混交林地(湿地松-小叶栎)和自然恢复地(受到人为干扰)为样地,并且在附近选择疏草荒地作为对照,研究不同人工林型对土壤理化性状的影响。结果表明,不同人工林型对土壤的理化性状有不同程度的影响,阔叶林和针阔混交林在改善物理性状,增加有机质和养分含量等方面优于针叶林和自然恢复地,均优于疏草荒地。在剖面分布上,也有明显的层次差异,即随土层的增加理化性状有下降的趋势。更多还原

【Abstract】 The study was carried out at long-term experimental plots in the Ecological Experiment Station of Red soil,located in Yujiang county,Jiangxi Province,China.Four types of restoring vegetations lasted fourteen years on degraded red soil.The analysis results shows that different artificial types of forest have different effects on physical and chemical properties of soil.Contrasted with CK,Quercus chenii(Qc) and Quercus chenii-pinus massonina(Qp) are better than others on improving physical properties and increasing total organic C(TOC) and nutrient content.In the profile,the upper layer is better than the lower one.更多还原