山西省石楼县油松人工林土壤水分动态变化研究

Study on the Dynamic Changes of Soil Moisture in Pinus Tabulaeformis Plantation in Shilou County of Shanxi Province

笔者通过测定不同土层深度的土壤含水量,研究坡向、坡位及造林密度对山西省石楼县油松人工林土壤水分的影响。结果表明,油松人工林不同坡向土壤含水量差异不显著,从高到低依次为北坡>西北坡>东坡。不同坡位土壤含水量差异显著,从高到低依次为下坡位>中坡位>上坡位。不同造林密度土壤含水量差异显著,从高到低依次为1465株/hm^(2)>968株/hm^(2)>2193株/hm^(2)。不同土层深度土壤含水量差异不显著,土壤含水量随土层深度的增加而降低。

The effects of slope orientation,slope position and afforestation density on soil moisture were studied by measuring soil moisture content at different soil depths in the Pinus tabulaeformis plantation in Shilou County of Shanxi Province.The results showed that there was no significant difference in soil moisture content among different slopes of Pinus tabulaeformis plantations,with the order from high to low being the north slope>the northwest slope>the east slope.There was a significant difference in soil moisture content among different slope positions,with the order from high to low being downside slope position>middle slope position>upside slope position.There was a significant difference in soil moisture content among different afforestation densities,with the order from high to low being 1465 plants/hm^(2)>968 plants/hm^(2)>2193 plants/hm^(2).There was no significant difference in soil moisture content under different soil depths,and the soil moisture content decreased with the increase of soil depth.