辽东山地胡桃楸天然次生林土壤蓄水能力分析

目的]对辽东山区的以胡桃楸为主天然次生林的水源涵养能力进行了分析研究。方法]研究林分结构类型、林分密度、立地条件对土壤蓄水能力的影响。结果]胡桃楸天然次生林比长白落叶松纯林的土壤更加疏松多孔,土壤蓄水能力更强。相同林龄树种组成对水源涵养能力没有显著的影响,林分密度对于天然次生林的蓄水能力有显著影响。不同立地条件林地土壤的蓄水能力也存在显著差异,坡度越大,水源涵养能力越低。阴坡比阳坡的蓄水能力强。结论]胡桃楸天然次生林土壤蓄水量受到多种因素的影响。

Anlysis on the Water Storage Capacity of Juglans Mandshurica's Natural Secondary Forest in the East Liaoning Mountain Region

Objective ] We analyzed the water conservation capacity of natural secondary forest of Juglans mandshurica in Liaodong area. Method] The effects of stand structure type, stand density on soil water storage capacity were studied. Result] It turned out that the soil of natural secondary forest of Juglans mandshurica was looser and more porous than the soil of Larix gmelinii, it also has a stronger water storage capacity. The species of natural secondary forest of Juglans mandshurica has no significant impact on the water conservation capacity, but the stand density does have a significant impact on the water storage capacity of the natural secondary forest. What＇s more, water storage capacity of forest soil has great differences in different site conditions. The higher the slope is, the lower water conservation capacity it has. The north slope has a better storage capacity than the south slope. Conelusion] The water storage capacity of Natural secondary forest of Juglans mandshurica has been influenced by many factors.