引用本文:秦保平,孙 韧,王德龙,林 坚,张玉惠,张洪滨,等.引滦河道中水质偏碱的起因研究[J].环境科学研究,1999,12(5):38-42.
QIN Bao-ping,SUN Ren,WANG De-long,LIN Jian,ZHANG Yu-hui,ZHANG Hong-bin,et al.Study on the Causes of Water Bias Alkalinity in Luanhe River Channel[J].Reserrch of Environmental Science,1999,12(5):38-42.]
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引滦河道中水质偏碱的起因研究
秦保平,孙 韧,王德龙,林 坚,张玉惠,张洪滨,等
作者单位
秦保平 天津市环境监测中心天津 300191 
孙 韧 天津市环境监测中心天津 300191 
王德龙 天津市环境监测中心天津 300191 
林 坚 天津市环境监测中心天津 300191 
张玉惠 天津市环境监测中心天津 300191 
张洪滨 天津市环境监测中心天津 300191 
摘要:
过分析揭示引滦河道pH值偏高的主要区域在于桥水库内,并分别从引滦河道流域内的岩石、土壤对地面水中溶质的影响、地下水运移及地面水中浮游植物的光合作用对水体pH值的影响等几方面寻找原因。经研究确定水体中藻类的光合作用是pH升高的主要原因。水中较高的氮、磷使藻类大量繁殖,而藻类在光合作用过程中,吸收二氧化碳,放出氧气,从而影响水中HCO-3,CO2和OH-的平衡,进而导致水体中pH升高。
关键词:  pH值 藻类 光合作用 碳酸氧根 碳酸根
DOI:
分类号:
基金项目:
Study on the Causes of Water Bias Alkalinity in Luanhe River Channel
QIN Bao-ping,SUN Ren,WANG De-long,LIN Jian,ZHANG Yu-hui,ZHANG Hong-bin,et al
Abstract:
Through analyzing water quality change trend in Luanhe River Channel since the construction completion,the main area with high pH value was found among Yuqiao Reservoir.The causes of effecting the pH value increment were discussed from various aspects,e.g. the rock weathering and soil action influencing the solute in the surface water,the groundwater moving,and the phytoplankton photosynthesis.It was determined that photosynthesis of algae is the principal reason of the pH value increment.High concentration of nitrogen and phosphorus in the reservoir results in algae bloom.Algae absorb CO2 and release O2,breaking out the balance between HCO-3,CO2 and OH- and bringing about the pH value increment in the reservoir.
Key words:  pH  Algae  Photosynthesis  HCO-3  CO2-3