基于水分变化的沙地樟子松人工林土壤分层特征
发布时间：2018-08-29 10:12
【摘要】：研究了章古台地区沙地樟子松人工林不同林龄(10a,20a,35a,50a,60a)不同深度(20cm,40cm,60cm,80cm,100cm,120cm,140cm,160cm,180cm)的土壤含水量变化的分层特征。结果表明:沙地樟子松人工林地各土壤层次水分含量随林龄的不同表现各异。依据土壤含水量的不同将沙地樟子松人工林地土壤层次分为3层,即表层、根系层和稳定层,各林龄的层次分别为:10a林龄林地无明显表层,100cm土层以上为根系层,120cm土层以下为稳定层;20a林龄林地40cm以上为表层,60-140cm为根系层,160cm以下为稳定层;35a林龄林地40cm土层以上为表层,60-100cm为根系层,120cm以下为稳定层;50a林龄林地40cm以上为表层,60-120cm为根系层,140cm以下为稳定层;60a林龄林地40cm以上为表层,60-100cm为根系层,120cm以下为稳定层。
[Abstract]:The stratification characteristics of soil water content changes of Pinus sylvestris var. mongolica plantation in Zhanggutai area at different ages (10 ~ 20 a ~ (20) a ~ (35) ~ (50) a ~ (60) ~ (60) ~ (20) ~ (40) cm ~ (-) ~ (60) ~ (60) (20 cm ~ (40) ~ (40) cm ~ (60) ~ (80) cm ~ (-1) ~ The results showed that the soil moisture content of Pinus sylvestris var. mongolica plantation in sandy land varied with the age of the forest. According to the soil moisture content, the soil layer of Pinus sylvestris var. mongolica plantation is divided into three layers: surface layer, root layer and stable layer. The layers of each forest age are: 10 years old forest land with no obvious surface layer of 100cm soil layer above the layer of root layer below 120cm soil layer and below the stable layer of 20a forest age forest land 40cm above the surface layer of 60-140 cm, the root layer below 160 cm is the stable layer of 35 years old forest land 40cm soil layer. For the top layer (60-100cm), the root layer is below 120cm, the stable layer is below 120cm for forest land for 50 years, and the top layer (60-120cm) is the top layer of root layer (140cm). The stable layer is above the surface layer (60-100cm) and the layer of root layer (120cm) is below the layer of root layer (120cm).
【作者单位】： 辽宁工程技术大学环境科学与工程学院;
【基金】：国家自然科学基金项目(31570709)资助
【分类号】：S714
本文编号：2210887
[Abstract]:The stratification characteristics of soil water content changes of Pinus sylvestris var. mongolica plantation in Zhanggutai area at different ages (10 ~ 20 a ~ (20) a ~ (35) ~ (50) a ~ (60) ~ (60) ~ (20) ~ (40) cm ~ (-) ~ (60) ~ (60) (20 cm ~ (40) ~ (40) cm ~ (60) ~ (80) cm ~ (-1) ~ The results showed that the soil moisture content of Pinus sylvestris var. mongolica plantation in sandy land varied with the age of the forest. According to the soil moisture content, the soil layer of Pinus sylvestris var. mongolica plantation is divided into three layers: surface layer, root layer and stable layer. The layers of each forest age are: 10 years old forest land with no obvious surface layer of 100cm soil layer above the layer of root layer below 120cm soil layer and below the stable layer of 20a forest age forest land 40cm above the surface layer of 60-140 cm, the root layer below 160 cm is the stable layer of 35 years old forest land 40cm soil layer. For the top layer (60-100cm), the root layer is below 120cm, the stable layer is below 120cm for forest land for 50 years, and the top layer (60-120cm) is the top layer of root layer (140cm). The stable layer is above the surface layer (60-100cm) and the layer of root layer (120cm) is below the layer of root layer (120cm).
【作者单位】： 辽宁工程技术大学环境科学与工程学院;
【基金】：国家自然科学基金项目(31570709)资助
【分类号】：S714
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