Rainfall infiltration and soil hydrological characteristics below ancient forest, planted forest and grassland in a temperate northern climate
Rainfall infiltration and soil hydrological characteristics below ancient forest, planted forest and grassland in a temperate northern climate
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DOI：
10.1002/eco.1658
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发表时间：
2016-06
期刊：
影响因子：
2.6
通讯作者：
N. Archer;W. Otten;S. Schmidt;A. Bengough;N. Shah;M. Bonell
中科院分区：
文献类型：
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作者：
N. Archer;W. Otten;S. Schmidt;A. Bengough;N. Shah;M. Bonell
在温带地区不同年龄的森林下，降雨入渗率和土壤水文特征如何随时间发展尚不清楚。研究了不同林龄和草地条件下的入渗速率和土壤水文特征。在250年的放牧草地（GL）、6年的和48年的苏格兰松（Pinus sylvestris）人工林、300年的残余苏格兰松（OT）和4000年的加里东森林（AF）的不同尺度上测量了土壤的水力特性。测量了原位饱和水力传导性（Kfs），并从土壤坑中估计了可见根：土壤面积。通过土壤岩心的X射线层析成像和水分释放特征估计了大孔隙度、孔隙结构和大孔隙连通性。
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 (Kfs) 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.