黄河对滨海湿地地表水可溶性盐的影响研究

Influence of Yellow River on Soluble Salty Ions in Surface Water of Coastal Wetlands

对滨海湿地黄河周边地表水的可溶性盐分差异进行研究,结果表明:距离黄河越远,地表水p H越小,电导率越大;垂直河道地表水全盐含量为,黄河水<距河道5 Km农田附近地表水<距河道7 Km柽柳附近地表水<距河道8 Km碱蓬附近地表水,反映出黄河对周边的淡水补给。在雨季,地表水中HCO-3含量被稀释,使得p H高于旱季,而电导率、全盐含量小于旱季;阴离子中的氯离子以及阳离子中的钠离子含量较大、尤其是碱蓬群落附近的地表水,反映出植被对环境的适应与改善。

Based on the sampled data,the soluble salty ions of surface water in the vicinity of the Yellow River are analyzed in the coastal wetlands. Research results show that the farther away from the Yellow River,the lower is the p H of surface water,then the higher is the conductivity. At the vertical direction of the Yellow River,the sequences of total salt content in the surface water are the salinity in the 5 km < the salinity in the 7 km < the salinity in the 8 km away from the river that is influenced by fresh water from the Yellow River. During the rainy season,the p H of surface water of natural vegetation was higher than that in dry season,while the conductivity and total salt content is higher in the dry season. Of those,Chloride ion is the most maximum among the 4 negative ions,and the content of Sodium ion is the highest among the 4 positive ions,especially in the surface water near the Suaeda glauca Bge growing,which illustrates the vegetation could adapt and improve the environment.