为揭示喀斯特石灰岩地下生境的土壤质量差异, 选择基于喀斯特石灰岩的3种不同典型地下生境类型样地(石灰岩低倾产状地下生境、 石灰岩中倾产状地下生境、 石灰岩高倾产状地下生境)的土壤为研究对象, 测定不同类型样地土壤的物理、 化学及生物学指标, 计算土壤质量综合指数, 对其土壤质量进行综合评价.结果表明, 不同石灰岩地下生境类型及其不同层次的土壤指标值差异显著, 层次性明显, 土壤质量均表现为表层>中层>下层;不同类型的土壤质量存在差异, 石灰岩低倾产状生境最好, 中倾生境次之, 高倾生境最差.%To reveals the soil quality differences of karst limestone underground habitat type, taking three different habitat types of soil of the typical limestone underground in karst areas as the research objects (limestone low yield underground habitat type, limestone middle yield underground habitat type and limestone high yield underground habitat type), to test the different types of soil physical, chemical and biological indicators, and calculate the integrated soil indexes for the soil quality evaluating;the results showed that: soil indexes of different limestone underground habitat types and different soil levels were significant different and had a clear hierarchy, the soil quality in the surface level was the best, the secondary was the middle level and the lower level was the worst;soil quality of different types existed differences, the soil quality indicated that limestone low yield underground habitat type was the best, the limestone middle yield underground habitat type was the secondary, and the limestone high yield underground habitat type was the worst.
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