太行山低山丘陵花岗片麻岩区典型林地土壤持水能力研究  

Study on the soil water-holding capacity of typical forests in the low-mountain and hillygranite gneiss area of Taihang Mountains

作　　者：侯佳茗 HOU Jia-ming(College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China)

机构地区：[1]北京林业大学水土保持学院,北京100083

出　　处：《河北林业科技》2021年第2期30-33,共4页Journal of Hebei Forestry Science and Technology

摘　　要：为分析太行山低山丘陵花岗片麻岩区典型林地的土壤持水能力,选取刺槐、油松×侧柏、核桃3种典型林地土壤进行土壤物理性质及其持水能力测定分析。结果表明:土壤容重、孔隙度、饱和蓄水量在3种典型林地之间存在差异。土壤容重变化在1.36~1.47g/cm^(3)之间,随着土层深度的增加而增大;核桃林土壤容重最小,总孔隙度最大,饱和蓄水量、毛管蓄水量最大,油松×侧柏混交林土壤容重最大,总孔隙度最小,饱和蓄水量、毛管蓄水量最小。总体发现,核桃林土壤持水能力较强,刺槐林次之,油松×侧柏混交林土壤持水能力较弱。To investigate the water-holding capacity of typical forest soil in the low-mountain and hilly granite gneiss area of Taihang Mountains,soil samples from 3 typical forest types were tested,including Robinia pseudoacacia forests, Pious tabuliformis/Platycladus orientalis forests and Juglans regia forests. The results showed that thesoil bulk density,soil porosity andsaturation water-holding capacity presented differences among 3 forest types.The soil bulk density raged from 1.36 to 1.47 g/cm^(3),and increased with the increase of soil depth;and Juglans regia forests had lowest bulk density and non-capillary water-holding capacity, highest total porosity,saturation water-holding capacity and capillary water-holding capacity;Pious tabuliformis/Platycladus orientalis forests had highest bulk density and non-capillary water-holding capacity,lowest total porosity,saturation water-holding capacity and capillary water-holding capacity. In overall,the water-holding capacity of Juglans regia forests was higher,followed by Robinia pseudoacacia forests and Pious tabuliformis/Platycladus orientalis forests.

关 键 词：太行山 森林土壤 持水能力 

分 类 号：S152.71[农业科学—土壤学]