Details

Autor(en) / Beteiligte

• Sun, Ping-an
• Yu, Shi
• Mo, Fu-zhen
• He, Shi-yi
• Lu, Ju-fang
• Yuan, Ya-qiong

Titel

Hydrochemical Characteristics and Influencing Factors in Different Geological Background: A Case Study in Darongjiang and Lingqu Basin, Guangxi, China

Ist Teil von

• Huanjing kexue, 2016-01, Vol.37 (1), p.123

Ort / Verlag

China

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• The observation and sampling were carried out in May 2013 to April 2014 in a hydrological year for two river basins with different geological background in upstream of Li river basin. The seasonal variations of river water chemistry and its main influencing factors were discussed in this paper. The results showed that the hydrochemistry types of both Darongjiang basin with 9% of carbonates and Lingqu basin with nearly 50% of carbonates in area belonged to Ca-HCO3 type. Ca2+ and HCO3- were the main cations and anions. The main ion concentrations were higher in winter and lower in summer, affected by the change of the flow. Ca2+, Mg2+, HCO3- were mainly sourced from the weathering of carbonates by carbonic acid. The weathering of carbonates by sulfuric acid and the weathering of silicate rocks also had contribution to the river water chemistry. In addition, comparing to the Lingqu basin, the contribution of the weathering of carbonates was much more than the percent of carbonates area, because the carbonate roc