. The ecology of Tijuana Estuary, California : a national estuarine research reserve . MAY JUN JUL AUG SEP OCT NOV DEC JAN FEBMARAPR 1977- ' —!— 1978—1 Figure Concentrations of ammonium nitrogen in flood and ebb tidal waters for a) the succulent-dominated study site and b) the mixed cordgrass-succulent study site of Winfield (1980). Vertical bar is ±_1 standard deviation. Reprinted from Winfield (1980) with permission. however, there was a net import of inorganic nitrogen ( g N/m2/yr; Figure ). Streamflows did not appear to be important to the nitrogen cycle except during flood year
. The ecology of Tijuana Estuary, California : a national estuarine research reserve . MAY JUN JUL AUG SEP OCT NOV DEC JAN FEBMARAPR 1977- ' —!— 1978—1 Figure Concentrations of ammonium nitrogen in flood and ebb tidal waters for a) the succulent-dominated study site and b) the mixed cordgrass-succulent study site of Winfield (1980). Vertical bar is ±_1 standard deviation. Reprinted from Winfield (1980) with permission. however, there was a net import of inorganic nitrogen ( g N/m2/yr; Figure ). Streamflows did not appear to be important to the nitrogen cycle except during flood years. The shift from dominance of dissolved inorganic nitrogen by ammonium to dominance by nitrate is a good indictor of riverine influence. Sewage inputs, on the other hand, are dominated by ammonium (Covin 1984). The preponderance of ammonium in 1977-78 channel waters and also in 1985 data of Rudnicki (1986) and Fong (1986) indicate long-term nitrogen subsidies from urban and agricultural wastewater. 89
Size: 1980px × 2525px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
