While applying it, we study the spatial distribution of PN (P) load on the Guishui watershed according to the DEM and the information obtained from land use map and soil map.

• 根据妫水河流域的土壤图、土地利用图及数字高程模型，应用新的模型研究了妫水河流域颗粒态氮磷污染负荷的空间分布。