Rainfall infiltration and soil hydrological characteristics below ancient forest, planted forest and grassland in a temperate northern climate

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• 作者：Nicole A. L. Archer ; Wilfred Otten ; Sonja Schmidt ; A. Glyn Bengough ; Nadeem Shah and Mike Bonell
• 刊名：Ecohydrology
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：9
• 期：4
• 页码：585-600
• 全文大小：6000K
• ISSN：1936-0592

文摘

How rainfall infiltration rate and soil hydrological characteristics develop over time under forests of different ages in temperate regions is poorly understood. In this study, infiltration rate and soil hydrological characteristics were investigated under forests of different ages and under grassland. Soil hydraulic characteristics were measured at different scales under a 250-year-old grazed grassland (GL), 6-year-old (6yr) and 48-year-old (48yr) Scots pine (Pinus sylvestris) plantations, remnant 300-year-old individual Scots pine (OT) and a 4000-year-old Caledonian Forest (AF). In situ field-saturated hydraulic conductivity (K_fs) was measured, and visible root:soil area was estimated from soil pits. Macroporosity, pore structure and macropore connectivity were estimated from X-ray tomography of soil cores, and from water-release characteristics.