摘要
本文定量分析了桐庭湖水系江湖离子径流量的时空变化规律、化学剥妇瞬性及其影响因素,同时,还应用相关分析法研究了集水面积内水体在流动过程中,离子径流与固体径流之间的物理、化学联系和影响。
The average value of mineralization degree of water in river system of Dongting Lake is 160 mg/L(the highest is 260mg/L,the lowest is less than 50mg/L).The mineralization degree in rivers of this system presents a de- creasing trend from the northwest and southwest of the system and hills north to the Nanling Mountain,to the northeast outlet of Dongting Lake,due to the differences in climate and hydrology,as well as the differences in association of geology,geomorphology and soil.The ion flow in rivers and lakes of this system has an obvious seasonal change. The river system is a strong chemical denudation region.The main factors to influence chemical denudation are precipitation,runoff and soluble and non- -soluble substances,and geomorphology and vegetation as well.
出处
《地理科学》
CSSCI
CSCD
北大核心
1989年第3期242-251,共10页
Scientia Geographica Sinica
关键词
矿化度
离子径流
化学剥蚀
湖泊
Mineralization degree
Ion flow
Chemical denudation
