3Helmut, K. Groundwater Updates, Best-set Typesetter Ltd., Hong Kong, 2000. 3 ～ 8
4雄先哲.硝酸盐氮污染地下水的生物防治[J].环境科学,1984,5(4):71-74.
5Heaton, T. Isotopic studies of nitrogen pollution in the hydrosphere and atmosphere: A review. Geochemical Geology, 1986, 59:87 ～ 102
6Hirata. K. M. Pollution of soil and groundwater and its management Tokyo:Law and Regulations Center Publishing House( In Japanese).1996. 181 ～ 193
7Aravena, R. and Robertson, W.D. Use of multiple isotope tracers to evaluate denitrification ingroundwater: Study of nitrate from a large-flux septic system plume. Ground Water, 1998, 36: 975 ～ 982
8Williams A E, Lund J L, Johnson J A, et al. Natural and anthropogenic nitrate contamonation of groundwater in a rural community,California., Environ. Sci. Technol., 1998, 32:32～ 39
9Panno S V, Hackley K C, Hwang H H, et al. Determination of the sources of nitrate contamination in Karst springs using isotopic and chemical indicators. Chemical Geology, 2001,179:113 ～ 128
10Fogg. G. E., Rolston, D.E. , and Decker, D.L. Spatial variation in nitrogen isotope values beneath nitrate contamination sources. Ground Water, 1998, 36:418 ～ 426
