Science. 1973 Jul 6;181(4094):66-8. doi: 10.1126/science.181.4094.66.
Analysis of soils from burned and unburned chaparral indicates that high nitrate concentrations following fire are due to the addition of ammonium and organic nitrogen in the ash. Inhibition of mineralization in unburned chaparral results in low nitrate concentrations. Fluctuations in the amount of soil nitrate in unburned chaparral are the direct result of foliar leaching.
分析火烧和未火烧的灌丛土壤表明，火灾后硝酸盐浓度高是由于灰烬中铵和有机氮的增加。未火烧灌丛中矿化作用的抑制导致硝酸盐浓度低。未火烧灌丛中土壤硝酸盐含量的波动是叶片淋洗的直接结果。
