对枞阳大山林场马尾松纯林和马尾松阔叶混交林林下植被生物量特性进行了研究。结果表明,马尾松纯林林下灌木占林下植被总量的比例(91.61%)大于马尾松阔叶混交林(74.80%)。2种马尾松林下植被生物量在各器官的分配比例均呈现出:灌木层生物量中根>茎>叶;草本层的地上部分生物量远远小于地下部分生物量。马尾松阔叶混交林相对于马尾松纯林,土壤容重在减小,土壤含水量、>0.25 mm的水稳性团聚体、有机质、全N、水解N、有效P和速效K含量在增加。相关分析表明,林下植被生物量地下部分比例与土壤容重和土壤含水量呈显著负相关,而与土壤有机质、全N和速效P呈显著正相关。 The biomass characteristics of understory vegetation of Pinus massoniana and Pinus massoniana forest in Zongyang Dashan Forest Farm were studied. The results showed that the proportion of understory shrubs in understory masson pine forests was 91.61% larger than that in broadleaf masson pine mixed forest (74.80%). The distribution of biomass of two Pinus massoniana plantations in different organs showed that the shrub layer biomass was root> stem> leaf. The aboveground biomass of the herb layer was much less than that of the underground biomass. Masson pine broad-leaved mixed forest relative to pure Pinus massoniana soil, soil bulk density decreases, soil moisture,> 0.25 mm water stable aggregates, organic matter, total N, hydrolyzed N, available P and available K content is increasing. Correlation analysis showed that the proportion of underground biomass of understory vegetation was negatively correlated with soil bulk density and soil water content, but positively correlated with soil organic matter, total N and available P.