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鲍曼和福克特在新近的论文中报导:在两种砂质土中反硝化作用的速率取决于基质的浓度。可是,别的研究者曾报导过:反硝化作用的速率在相当宽广的幅度(2,3,5,6,8)内是与NO~(-3)的浓度无关的(零级动力学)。正如鲍曼和福克特所指出的:这种差别是别的研究者使用较高的NO~(-3)浓度所造成的。 本文引用的是伊利诺斯州中部两种土壤经过反硝化作用损失NO~(-3)的动力特性数据。这两种土壤的有机质含量与鲍曼和福克特所使用的土壤(有机质为0.75％和0.11％)相比是比较高的(有机碳约为2.3％—见表1)。数据是从数学处理的实用观点分析的。
Bowman and Folker reported in a recent paper that the rate of denitrification in both sandy soils depends on the concentration of matrix. However, other researchers have reported that the rate of denitrification is independent of the concentration of NO 3 (zero-order kinetics) over a wide range of amplitudes (2, 3, 5, 6, 8) . As Bauman and Folke pointed out: This difference is caused by the use of higher concentrations of NO ~ (-3) by other researchers. This paper cites the kinetic data of NO ~ (-3) loss by denitrification in two soils in Central Illinois. The organic matter content of both soils is relatively high (about 2.3% for organic carbon - see Table 1) compared with the soil used by Bauman and Folke (organic matter 0.75% and 0.11%). The data is analyzed from the practical point of view of mathematical processing.