黑茶山油松人工林林地土壤水分特征  

Soil moisture Characteristics of Pinus Tabulaeformis Plantation in Heicha Mountain

作　　者：李卫珍 Li Weizhen(National Forest Administration Brueau of Heicha Mountain,Lvliang,Shanxi 033000,China)

机构地区：[1]山西省黑茶山国有林管理局,山西吕梁033000

出　　处：《山西水土保持科技》2023年第2期23-27,共5页Soil and Water Conservation Science and Technology in Shanxi

摘　　要：晋西北生态环境脆弱,水土流失严重,为山西省植被恢复重点区域。人工林作为该区生态重建的重要举措而备受关注。本研究以晋西北主要造林树种油松林地土壤水分变化特征为切入点,通过开挖土壤剖面,定位试验,研究不同人工林林地土壤水分变化规律及入渗特征。结果表明:(1)林地土壤容重随深度增加而增大;(2)人工林建植时间越早,林地土壤储水量能力越大;(3)较低海拔地区的油松人工林林地土壤水分入渗能力较高,对于提高林地水分利用效率有利。The northwest of Shanxi Province is a key area for vegetation restoration because of its fragile ecological environment and serious soil erosion.As an important measure of ecological reconstruction in this region,artificial forest attracts much attention.In this study,the characteristics of soil moisture change in the forestland of Pinus tabulaeformis,the main afforestation species in northwest Shanxi Province,were taken as the breakthrough point.Through soil profile excavation and location test,the soil moisture change rule and infiltration characteristics of different artificial forest were studied.The results showed that:(1)the soil bulk density increased with the increase of depth;(2)The earlier the planting time of artificial forest,the soil water storage capacity of forest land showed an increasing trend.(3)The soil water infiltration capacity of Pinus tabulaeformis plantation in the lower altitude area is higher,which is beneficial to improve the forest water use efficiency.

关 键 词：晋西北 油松人工林 储水量 入渗 

分 类 号：S714[农业科学—林学]