潮区界

长江河口潮区界溶解态无机氮磷的通量

Fluxes of the dissolved inorganic nitrogen and phosphorus at tidal limit in the Changjiang Estuary

利用建立的数学模型模拟沿江抽、引水对该河段的水动力环境的影响，尤其是对潮区界和潮流界的位置变动的影响程度。

The established numerical model is used to simulate the impact on the hydrodynamic environment in this reach , especially that on the locations of the tidal limit and the tidal current limit .

南水北调对对潮流界的影响比对潮区界的影响大，1月调水1000m~3／s时使小潮潮流界上移10km，对大潮潮流界无太大影响。

South-to-North Water Diversion Project will make neap tidal current limit move upstream about 10km , but affects spring tidal current limit little .

辽河口地形复杂多变，受径流和潮汐相互作用的影响，盐度时空变化非常剧烈。对辽河口盐度以及潮区界、潮流界进行系统研究具有重要的理论和实践意义。

Liaohe River estuary region has complicated terrain , and has intense space-time variations in salinity under the interactive effects of both the runoff and tide .

潮区界和潮流界随径流量和潮差的变化并不是线性的，径流量越小，潮差越小，它们的变化对潮区界和潮流界的影响越显著。

But this process is non-linear , which means when the river discharge or the tidal range is smaller , the influence of their change to the tidal limit and tidal current limit is greater .

利用长江河口潮区界大通站的水质资料探讨了溶解态无机氮、磷浓度和通量的变化。

Based on the data of water quality at Datong Station , which is at tidal limit in the Changjiang Estuary , variations of concentrations and fluxes of the dissolved inorganic nitrogen and phosphorus were discussed .

通澄长河段抽引水影响研究根据计算结果对比分析了不同抽、引水量下的水位、流速以及流量的沿程分布，及对潮区界、潮流界和下泄流量的影响。

The distributions of water level , velocity and discharge along this reach are calculated according to different amount of the water abstraction and their impacts on the locations of the tidal limit and the tidal current limit are analyzed .

感潮河段潮区界、潮流界的变化是全球海岸带陆海相互作用研究的重要内容，对它进行系统研究具有重要的理论和实践意义。

Study of tidal limit and tidal current limit is one of the important components of global Land-Ocean interaction . Systematic study of them is of significant meaning both in practice and theory .

盘山闸下游潮差始终不为零，枯、丰水期大小潮期间的辽河口潮区界均位于盘山闸处。

The tidal range in Panshan sluices downstream is always nonzero . The tidal limit of Liaohe River estuary during various tides and runoffs is all at Panshan sluices .

通澄河段是长江下游感潮河段，沿江抽、引水频繁，对潮区界和潮流界都有影响。

The Tong Cheng Reach is the lower part of the Yangtze River , where the water abstraction is active and gives impact both on the location of the tidal limit and on that of the tidal current limit .