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灰化淀积层
释义
灰化淀积层
Encyclopedia
农学
灰化淀积层
释
spodic horizon
灰化淀积层
具有灰化淀积物质(有机质和铝或有机质和铁、铝)淀积的土层。由螯合淋溶作用形成的一种淀积层。是在高山冷湿的针叶林木下,真菌分解凋落物产生的可溶性腐殖质与矿物表面风化出的铝和铁发生强烈的络合作用,可溶性络合物随降水下渗并积聚在B层的结果。
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problem of stability of solar system
problem of tautochrone
problem of testing
problem of the 13 spheres
problem of the 15 schoolgirls
problem of the 36 officers
problem of the advance of Mercury’s perihelion
problem of the kings
problem of the needle
problem of the queens
problem of the seven bridges of Konigsberg
problem of three bodies
problem of touring the world
problem of trisection of an angle
problem of two bodies
problem on knight’s moves
problem on lattice points
problem-oriented history
problem-oriented language
problem oriented policing
problem regions
problem representation
Problems of Dostoevsy’s Poetics
problem solving
problem space
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