共 10 条
[6]
Human influence on river nitrogen. Peierls B L,et al. Nature . 1991
[7]
Flow and chemical contribu- tions to streamflow in an upland basin:a baseflow sur- vey. Gburek W J,Folmar G J. Journal of Hydronautics . 1999
[8]
Impact of climatic fluctuations and land use change on runoff and nutrient losses in rural landscapes. Mander Ulo. Landscape and Urban Planning .