TABLE 2.

Steady-state rates of nitrogen transformation from intact core incubations

Site identifier	Site name	Treatment	Type	Rate (μmol N m−2 day−1)
				Nitrification	Denitrification	Coupled N-Da	Remineralization	Gross NO3− uptake	DNRA
VM1	Elkhorn Slough protection area	Stirred	Unimpacted	22,930	1,595	74	16,179	32,542	944
SM1	South Marsh	Stirred	Unimpacted	14,976	2,086	510	7,787b	20,487	NAc
SR1	Salinas River	Stirred	Impacted	7,149	4,592	387	7,183	22,352	240
HL1	Hudson Landing	Stirred	Impacted	11,835	12,961	388	18,809	47,741	4,775
VM2	Elkhorn Slough protection area	Unstirred	Unimpacted	27,417	39	NDd	19,230	39,057	328
SM2	South Marsh	Unstirred	Unimpacted	32,796	1,824	534	24,498b	47,876	NA
SR2	Salinas River	Unstirred	Impacted	23,642	4,706	413	24,458	37,096	1,241
HL2	Hudson Landing	Unstirred	Impacted	27,588	2,464	64	19,431	40,897	1,224

^aN-D, nitrification-denitrification.

^bIn the absence of any constraint on rates of DNRA; the calculated remineralization rate includes DNRA as a source of NH₄⁺.

^cNA, not available, samples lost.

^dND, not detected.