Zhang Jin-Hu, Yu Li-Xia, Yao Qing-Zhen, Tian Lin
Huan Jing Ke Xue. 2014 Feb;35(2):569-76.
The distribution and species of nutrients in the Daliaohe Estuary were studied in April, July and November, 2010. Concentrations of nutrients displayed obviously seasonal variability in the Daliaohe Estuary. Highest concentrations of PO4(3-) -P, DOP, DTP and TP were in April, and the lowest were in July. While the highest PP was in November, the lowest was in July. The contents of NO3(-) -N and NO2(-) -N reached the highest point in July, and the lowest was in April; however, the highest NH4(+) -N, DON and PN were in April and the lowest were in November. The main existing form of TN was NH4(+) -N in April, while in July and November NO3(-) -N was the dominant. The behavior of NO3(-) -N,DIN and TN was conservative in various seasons; the behavior of NO2(-) -N, NH4(+) -N and DON was conservative in April and November, while nonconservative in July, which indicated the exist of the extra source in the interior of the estuary. The SiO3(2-) of the Daliaohe Estuary was conservative, with the highest average concentration in November and the lowest in April.
2010年4月、7月和11月对辽河河口营养盐的分布和种类进行了研究。辽河河口营养盐浓度呈现出明显的季节变化。4月PO4(3-)-P、DOP、DTP和TP的浓度最高，7月最低。而PP最高值出现在11月，最低值在7月。NO3(-)-N和NO2(-)-N的含量在7月达到最高点，4月最低；然而，NH4(+)-N、DON和PN最高值在4月，最低值在11月。4月TN的主要存在形态是NH4(+)-N，而7月和11月则以NO3(-)-N为主。NO3(-)-N、DIN和TN在各季节的行为较为保守；NO2(-)-N、NH4(+)-N和DON在4月和11月行为保守，7月则不保守，这表明河口内部存在额外来源。辽河河口的SiO3(2-)较为保守，11月平均浓度最高，4月最低。
