CAJ | 학술논문

针对山东全省农村地区进行地下水取样，采用离子交换色层法对地下水NO3--N质量浓度大于10 mg·L-1的地下水样品进行预处理，做溯源研究，同时采集当地植物、化学肥料、人畜粪便、土壤等样品，测定δ15N值，以针对山东地区，对现存的δ15N值数据库进行完善与补充，使本研究更具代表性与准确性。研究结果表明，如以研究区域整体为单位，有35.45％地下水样品的NO3--N来自于粪肥污染，有27.1％的地下水样品是受化肥污染，还有37.45％的地下水样品的NO3--N污染来自于化肥、粪肥以及生活污水的混合污染。作者还进一步分析了地下水中NO3--N平均质量浓度高于20 mg·L-1的烟台和潍坊，结果表明，烟台地区的地下水NO3--N污染有55.56％来自于粪肥污染，有5.56％来自于化肥污染，有38.88％来自于化肥、粪肥以及生活污水的混合污染；潍坊地区的地下水NO3--N污染有16.13％来自于粪肥污染，有48.39％来自于化肥污染，还有35.48％来自于化肥、粪肥以及生活污水的混合污染。
침대산동전성농촌지구진행지하수취양，채용리자교환색층법대지하수NO3--N질량농도대우10 mg·L-1적지하수양품진행예처리，주소원연구，동시채집당지식물、화학비료、인축분편、토양등양품，측정δ15N치，이침대산동지구，대현존적δ15N치수거고진행완선여보충，사본연구경구대표성여준학성。연구결과표명，여이연구구역정체위단위，유35.45％지하수양품적NO3--N래자우분비오염，유27.1％적지하수양품시수화비오염，환유37.45％적지하수양품적NO3--N오염래자우화비、분비이급생활오수적혼합오염。작자환진일보분석료지하수중NO3--N평균질량농도고우20 mg·L-1적연태화유방，결과표명，연태지구적지하수NO3--N오염유55.56％래자우분비오염，유5.56％래자우화비오염，유38.88％래자우화비、분비이급생활오수적혼합오염；유방지구적지하수NO3--N오염유16.13％래자우분비오염，유48.39％래자우화비오염，환유35.48％래자우화비、분비이급생활오수적혼합오염。
The groundwater samples were collected in the rural areas of Shandong province, and the samples which NO3--N concentrations were above 10 mg·L-1 were preprocessed by the method of ion exchange chromatography in order to trace the contaminant sources. At the same time, the native plants, chemical fertilizers, animal and human manures and soils were also collected, and these samples were used forδ15N determination for improving the database of existing NO3--δ15N value. The results showed that the proportion of nitrate contaminants which came from manures and chemical fertilizers were 35.45% and 27.1%respectively, and the contaminants of remaining 37.45% groundwater samples were mixed from sewages, chemical fertilizers and manures;the isotope composition of those groundwater samples which NO3--N average concentration higher than 20 mg·L-1 were further analyzed for Yantai and Weifang regions, the results showed that 55.56%contaminated groundwater samples were resulted from manures, and 5.56%from chemical fertilizers, 38.88%from mixed contamination of fertilizers, manures and sewages in Yantai region;and 16.13%contaminated groundwater samples were resulted from manures, 48.39%from chemical fertilizers, 35.48%from the mixed contamination of fertilizers, manures and sewages in Weifang region.