中国地质调查2025，Vol.12Issue(2)：87-95,9.DOI:10.19388/j.zgdzdc.2024.161
基于主成分分析的桦川—集贤—友谊地区地下水水质评价
Groundwater quality evaluation in Huachuan-Jixian-Youyi area based on principal component analysis
摘要
Abstract
Huachuan-Jixian-Youyi area in Sanjiang Plain is a key grain-producing area in Heilongjiang Prov-ince,and its water resources are directly related to agricultural production and ecological security.The demand for water resources continues to increase with the rapid development of industry and agriculture,leading to a series of problems such as declining groundwater levels and deteriorating water quality.The clarification of chemical char-acteristics,and the influencing factors of water quality,is of great significance to maintaining agricultural stability and sustainable development.Through collecting 15 groundwater samples in the field,the authors analgzed the groundwater chemical characteristics and causes by combining statistical analysis,piper trilinear diagram,hierar-chical cluster analysis,principal component analysis,chlor-alkali index,etc.,and evaluate the groundwater quality.Sodium adsorption ratio(SAR),soluble sodium percentage(Na％),and residual sodium carbonate(RSC)all showed good suitability for groundwater irrigation in the area.The main hydrochemical type was Ca2+-HCO3-type and locally Ca2+-Cl-type.The chemical composition of groundwater was mainly controlled by rock weathering,with the main ions derived from the dissolution of rock salt and soluble carbonates such as calcite and dolomite.And the chlor-alkali index indicated that cation exchange also affected the formation of groundwater chemical components.The results of the water quality evaluation showed that the groundwater quality in Huachuan County and Jixian County was poor,and the NO3-concentration exceeded the standard seriously.The overstandard was not only affected by natural factors,but also related to the use of chemical fertilizers and pesticides,mining and other human activities.The study results could provide references for the rational development and manage-ment of groundwater resources.关键词
三江平原/主成分分析/层次聚类分析/地下水/水质评价Key words
Sanjiang Plain/principal component analysis/hierarchical cluster analysis/groundwater/water qual-ity evaluation分类
地质学引用本文复制引用
何金宝,刘洪博,孔繁鹏,毛永新,赵建..基于主成分分析的桦川—集贤—友谊地区地下水水质评价[J].中国地质调查,2025,12(2):87-95,9.基金项目
中国地质调查局"三江平原黑土区水-土壤-植被耦合机制研究(编号:QCJJ2022-30)""高强度利用下黑土地地表基质养分元素变化规律及机理研究(编号:KC20220002)"及"三江平原宝清地区黑土地地表基质层调查(编号:DD20211588)"项目联合资助. （编号:QCJJ2022-30）
