摘要
根据我国水利部水文年鉴黄河监测站及全球水质监测计划(GEms/WATER)中国济南站的水化学资料,对黄河流域44个主要水文站自六十年代以来河水水质进行了分析研究,结果发现黄河流域河水各主要离子及离子总量有缓慢增长趋势.对此,我们从农田灌溉回水对黄河水质的影响、从灌溉用水量与黄河水质变化的相关性、以及从黄河水质年际变化趋势和黄河断流天数年际变化趋势的比较等诸方面进行了研究,提出了我们对黄河水质变化趋势的原因的认识.
The water quality data of the Yellow river system from the 1960 s to the 1990 s were studied. The results showed that the ion concentrationg trend happened in the Yellow river system, which could be related to the increasing of irragation water. The total ion content of the river water increasde due to the high-concentration of irrigation water in the farmalnd and its washing effect on the soil.
出处
《环境化学》
CAS
CSCD
北大核心
2000年第2期97-102,共6页
Environmental Chemistry
基金
国家重点基础研究发展规划项目
批准号:G1999043603
关键词
中国
黄河
河流水质变化
水质监测
Chinese river, the Yellow river, river water quality change.
