硝酸盐的淋溶 leaching of nitrate
钙质土中的淋溶钙质土 Luvic calcisols
蒸腾对淋溶等级的作用 transpiration effection leaching fractions
土表的硝态氮浓度不断增加，烤田增大了复水后硝态氮向地下水淋溶的趋势。
The concentration of nitrate-N increased continuously in soil surface, which resulted in nitrate leaching to groundwater after rewetting.
结果表明：随着氮肥用量的提高，土壤剖面硝态氮累积量明显增加，其向土壤下层淋溶的程度也越严重；
The results show the amounts of NO3-N accumulation in the soil profiles and their extents to leach into the deeper soil layers are increased significantly as the nitrogen fertilizer usage increased.
淋溶土系中等程度沥滤，本身肥力较高的森林土壤。
Alfisols are moderately leached forest soils that have relatively high native fertility.
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