摘要
介绍森林截留降雨模型中较常见的Gash模型、Rutter模型和经验模型,并对几种模型的优缺点进行评述。由于地表森林类型的变异性以及截留对比性研究的缺乏,为空间上的大尺度研究带来困难。森林结构特征、降雨特征和气象因素的时空变异性以及对截留机理认识的不够深入,引起模型参数不确定性问题。因此,针对截留区域多样化研究和模型参数不确定性因素研究是目前森林截留研究的重点。此外,研究区域由点向面的拓展和建立能全面反映截留过程机理的物理性模型是森林截留降雨研究发展的重要方向。
Several common models of Gash model,Rutter model and empirical model in forest rainfall interception models were introduced.The variability of surface forest types,as well as the lack of comparative study of rainfall interception makes it difficult in the large-scale studies in the space.The temporal and spatial variability of forest structure,rainfall characteristics and meteorological conditions,as well as not deep enough understanding of interception mechanism cause uncertainty in model parameters.Thus,researches on the regional diversification and study of model parameter uncertainty are currently the focus of the study of forest interception.In addition,the expansion from the point to the surface of study area and constructing forest rainfall interception models that reflect the physical mechanism of interception process fully is a significant direction of development.
出处
《安徽农业科学》
CAS
北大核心
2010年第20期10762-10764,共3页
Journal of Anhui Agricultural Sciences
基金
西南大学资源环境学院科技创新"光炯"培育项目
关键词
截留模型
截留机理
尺度
不确定性因素
Interception model
Interception mechanism
Scale
Uncertain factors
