3Beasley D B, Huggins L F, Monke E J. ANSWERS: A model for watershed planning[J]. Transaction of the ASAE, 1980, 23(4): 938-944.
4Leonard R A, K.nisel W G, Still D A. GLEAMS: Groundwater loading effects of agricultural management systems[J]. Transactions of ASAE, 1987, 30(5): 1403- 1418.
5Young R A, Onstad C A, Bosch D D, et al. Agricultural non-point source pollution model for evaluating agricultural watersheds[J]. Journal of Soil and Water Conservation, 1989, 44(2): 168- 173.
6Arnold J G, Allen P M. Estimating hydrologic budgets for three Illinois watersheds[J]. Journal of Hydrology, 1996, 176(4): 57-77.
7Newham L T H, Letcher R A, Jakeman A J, et al. A framework for integrated hydrologic, sediment and nutrient export modeling for catchment-scale management[J]Environmental Modelling and Software, 2004, 19(11): 1029- 1038.
8Shen J, Parker A, Riverson J. A new approach for a windows-based watershed modeling system based on a database-supporting architecture[J]. Environmental Modelling and Software, 2005, 20(9): 1127- 1138.
9Matthies M, Berlekamp J, Lautenbach S, et al. System analysis of water quality management for the Elbe river basin[J]. Environmental Modelling and Software, 2006, 21(9): 1309-1318.
10Worrall F, Burt T P. The impact of land use change on water quality at the catchment scale: the use of export coefficient and structural models[J]. Journal of Hydrology, 1999, 221(1-2): 75-90.
