horizon b
- horizon b的基本解释
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淀积层
- 相关中文词汇
- 淀积层
- 拼写相近词组、短语
- horizon blue
- horizon glass
- horizon lines
- 更多网络例句与horizon b相关的网络例句 [注：此内容来源于网络，仅供参考]
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Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and,or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron,aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil.
传统上可将土壤分成A、B、C三层。A层是位於最上面的一层，含有腐殖质，许多矿物质在该层中沥滤和淋溶。B层是个沉积区，富集了大量的来自A层的粘土矿物质和铁，铝氧化物。C层是现在土壤的母质层，也可能是风化的岩石、来自冰河或冲积层的物质、或早期土壤遗留下来的。
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Horizon B, the subsoil, contains materials washed down from above and may be mottled with various colors depending on the iron compounds present.
B 水平层，是亚土层，内含从上层冲刷下来的物质，而且这些物质因为含铁量不同会呈现出斑驳的色彩。
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Oxalic acid loading substantially stimulated soil P release from A1 horizon, showing a linear relationship; but its effect on B horizon soil was relatively negligible, especially at low oxalic acid concentrations mmol L^(-1. Oxalate solutions 0.5~20.0 mmol L^(-1 oxalic acid adjusted to pH 5.16 with 10.0 mmol L^(-1) NaOH had a much higher (1.51~2.98 times) soil-P-release effect than oxalic acid solution the same in oxalate concentration. Therefore, the mechanism of oxalic acid/oxalate triggering release of soil phosphorus is assumed to be dominated by ligand-exchange or complexing reactions of oxalate anionC2O(superscript 2- subscript 4 but not simply acid-dissolving effect. The effect of oxalate anion on soil phosphorus release was found to be somewhat cumulative, i.e. the amount of P released was primarily controlled by the cumulative oxalate loading rate, relatively independent of the manner of oxalate addition (one-time or sequential).
结果表明，草酸能显著促进暗棕壤A层磷的释放，土壤磷溶出量随草酸溶液浓度升高而线性增加；但对B层土壤磷的释放效应相对较弱，草酸浓度低於5mmolL^(-1)时B层磷的释放不明显。pH5.16草酸钠溶液比相同浓度的草酸溶液具有更高的解磷效率，在设置二者浓度为0.5~20.0mmolL^(-1)时，前者的解磷量是后者的1.51~2.98倍，推断草酸盐溶液或凋落物淋洗液中草酸类物质促进暗棕壤磷释放的主要机理在於草酸阴离子C2O(上标 2-下标 4配位反应。
- 更多网络解释与horizon b相关的网络解释 [注：此内容来源于网络，仅供参考]
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illuvial horizon b：层
illusion 错觉 | illuvial horizon b层 | ilness 疾病
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illuvial horizon b：层,淀积层
illuminating gas 可燃气体 | illuvial horizon B层,淀积层 | illuvial soil 淀积土
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horizon b：淀积层
horizon 层 | horizon b 淀积层 | horizon refraction 水平折射