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本文发展了一种用x光谱对侵蚀造成的土壤流失量进行定量化的新方法。每个被研究的土壤都有一条质量吸收系数(μm)相对于剖面深度的特征曲线。当土壤受到侵蚀时,质量吸收系数曲线就发生改变.曲线上μm的最大值反映了原子量高的元素,包括风化产物铁和盐基等的富集。在被研究的所有土体中,μm最大值亚层的底界与淀积粘化层的底界重合。μm最大值出现在粘粒和CEC最高值带之下的一个或二个亚层中。与参照(轻微侵蚀)土体相比,侵蚀土体淀积粘化层或μm(最大值亚层底界深度的变化值,是土壤流失量的最好指标。该方法在具有淀积粘化层的土壤中进行了试用检验,可能成为具有淀积粘化层的淋溶土、老成土和软土地区土壤侵蚀研究中的有用工具。
In this paper, a new method of quantifying soil erosion caused by erosion using x-ray spectroscopy has been developed. Each soil studied has a characteristic curve of the mass absorption coefficient (μm) relative to the profile depth. When the soil is eroded, the mass absorption coefficient curve changes, and the maximum value of μm on the curve reflects the high atomic weight elements, including the enrichment of weathering products such as iron and salt-based. In all soils under study, the bottom boundary of the sub-maximum μm layer coincides with the bottom boundary of the deposited adhesion layer. The maximum in μm appears in one or two sub-layers beneath the clay and the CEC highest band. Compared with the reference (slightly eroded) soils, erosion of the soil deposited mucilage or μm (the maximum value of sub-layer depth changes, the best indicator of soil loss.) This method has a deposition viscosity Layer of soil in a pilot test that may become a deposit with a viscous layer of leaching soil, old soil and soft soil areas of soil erosion research useful tool.