浠水坡地不同植被类型土壤水分特征研究

Characters of Soil Moisture under Different Vegetation Types in Xishui Slope

摘要:

为了解不同植被类型土壤水资源的变化规律,选择浠水县荒坡地、农耕地、马尾松林地和农林复合地(桃树+黄花菜)4种典型植被类型为研究对象,通过样地调查与试验测定其土壤水分物理特征变化规律,结果表明:各植被类型土壤容重表现为荒坡地(1.57)>桃树+黄花菜(1.51)>农耕地(1.49)>马尾松(1.45);土壤总孔隙度表现为马尾松(44.97%)>农耕地(43.70%)>桃树+黄花菜(42.82%)>荒坡地(40.52%);O～40 cm层土壤饱和蓄水量表现为马尾松(179.89 mm)>农耕地(174.80 mm)>桃树+黄花菜(171.03 mm)>荒坡地(162.07mm).不同植被类型的O～40 cm层土壤饱和蓄水量季节变化规律均表现为9月>6月>3月>12月.

Abstract:

To find out the rule of soil water resources under different vegetation types,four typical vegetations including sloping wildland,crop land,Pinus massoniana Lamb.forestland,agro-forestry land(Amygdalus persica Linn+Hemerocallis citrina Baroni(H.altissima Stout)) were chosen.It was found that the soil density under different vegetations showed sloping wildland(1.57)>peach+daylily(1.51)>crop land(1.49)>forestland(1.45);soil total porosity showed forestland(44.97%)>crop land(43.70%)>peach+daylily(42.82%)>slopi...