不同坡位50年生木荷人工林水源涵养能力分析

在调查50年生木荷人工林生物量的基础上,进一步分析了不同坡位林分乔木层、灌木层、草本层、凋落物层及土壤的水源涵养能力。结果表明,随着坡位上升,林分不同层次生物量呈下降趋势,乔木层、灌木层、草本层、凋落物层及土壤的水源涵养能力也呈下降趋势,且下坡位林分不同层次水源涵养能力与上坡位相比差异达显著或极显著水平。

Analysis of Water Conservation Capacity of 50-year Schima superba Plantation under Different Site Conditions

Based on the investigation of biomass of 50-year Schima superba plantation, the water conservation capacity of tree layer, shrub layer, herb layer, litter layer and soil of S.superba plantation under different slopes were further studied.The results showed that with the rise of slope, biomass of different forest lays were showed the tendency of decline, the water conservation capacity of tree layer, shrub layer, herb layer, litter layer and soil were also showed the tendency of decline, and water conservation capacity of different forest lays in lower slope had the highly significant difference or significant difference than that of the upper slope.