摘要
AnnAGNPS模型是一个能够连续模拟来自流域的地表径流、沉积物、污染负荷的分布式非点源污染模型。模型具有应用前景广泛、有效、参数数据需要量大、区域差异大、获取难的特征。以黄土高原丘陵沟壑区典型流域为例,建立了基于AnnAGNPS模型的岔口小流域非点源污染基础信息数据库,包括气候、土地利用、土壤和地形数据库。所需的模型参数大多通过实地调查,部分参数来源于文献数据。此数据库为岔口小流域农业非点源污染状况的进一步研究提供基础数据的同时,可供类似研究区域借鉴或为流域其他相关研究提供参考。
AnnAGNPS model is a distributed model designed for simulating the surface runoff, the deposit sediment and the pollution load from the watershed. This model possessed some positive characteristics, such as wide application prospect and the effectiveness of the application, as well as several negative properties, for example, plentiful parameter data require- ments, large difference between different places and the difficulty to achieve the data. Taking the Chakou watershed in loess hilly-gully region as the research target, the AnnAGNPS model databases were created including several major databases, eli mate, land usage, soil and topography database. Parameter data were mainly obtained through filedinvestigation, partially from the references. The research results could provide the basic data of the Chakou watershed agricultural non-point source pollu tion condition to guide the further study and could act as a reference for other related research.
出处
《山西农业大学学报（自然科学版）》
CAS
2013年第2期114-121,共8页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
国家自然科学基金(41071345)
