Using algal biomass to evaluate numeric nutrient criteria in an estuary: A case study of Daliaohe Estuary in China
Using algal biomass to evaluate numeric nutrient criteria in an estuary: A case study of Daliaohe Estuary in China
复制标题
DOI：
10.1016/j.ecolind.2016.06.039
复制
发表时间：
2016-11
影响因子：
6.9
通讯作者：
Fuxia Yang;R. Su;Huimin Jian;Qingzhen Yao
中科院分区：
文献类型：
--
作者：
Fuxia Yang;R. Su;Huimin Jian;Qingzhen Yao
本文基于营养盐与藻类生物量(Chl-a浓度)的应激响应模型，对河口氮磷数值标准进行了初步探讨，并进一步研究了盐度(S)对营养盐标准的影响。在大辽河河口进行了野外资料采集和室内模型试验。计算了大辽河口中国段盐度为15、25和31个盐度时的溶解无机氮(DIN)、总氮(TN)、磷酸盐(PO43−)和总磷(TP)生态指标。结果表明，S的变异对DIN和TN生态指标有显著影响，对PO43、−和TP生态指标影响不明显。DIN和TN生态标准值随着盐度浓度的升高或降低而增大，并与盐度对藻类养分吸收利用、生长、代谢和渗透压的影响密切相关。
This paper presents an initial inquiry into model-based numeric nitrogen and phosphorus criteria for estuaries based on stressor-response models between nutrients and algal biomass (Chl-a concentration) and further studies the effect of salinity (S) on nutrient criteria. Field data collection and associated indoor modeling were conducted in Daliaohe Estuary. Dissolved inorganic nitrogen (DIN), total nitrogen (TN), phosphate (P O 4 3−) and total phosphorus (TP) eco-criteria of Daliaohe Estuary in China were calculated at salinities of 15, 25 and 31. The results suggested that the variation in S had significant influence on the DIN and TN eco-criteria and no obvious effect on the P O 4 3− and TP eco-criteria. The values of DIN and TN eco-criteria increased with either higher or lower salinity concentrations, and were strongly linked to the effects of salinity on algal nutrient absorption and utilization, growth, metabolism, and osmotic pressure.