[Source and Transformation Process of Nitrate in Karst Groundwater within Guiyang City].
Abstract
） for the groundwater was 0.15， which was much lower than the denitrification ratio ranging from 1.3 to 2.1， suggesting that no denitrification had occurred in groundwater in the study area. The contribution rate of manure and sewage to nitrate sources in groundwater in the study area was as high as 48.6%， and soil organic nitrogen， chemical fertilizers， and atmospheric precipitation were 22.7%， 21.6%， and 7.1%， respectively. The research results provide theoretical basis for the prevention and control of nitrate pollution in urban groundwater.
Fields of Study & Subjects
Karst Systems and Hydrogeology
Groundwater and Isotope Geochemistry
Water Quality and Pollution Assessment
Publication details
- Journal / source
- PubMed
- Volume
- 47
- Issue
- 1
- Pages
- 320–328
- Publication date
- 8 January 2026
- Language
- ZH