Modelling erosion, sediment transport and sediment yield
Modelling erosion, sediment transport and sediment yield
复制标题
模拟侵蚀、泥沙输送和泥沙产量
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
D. Walling
中科院分区：
文献类型：
--
作者：
D. Walling
在流域尺度上，空间和时间的组织出现了大量的物理和生物过程在较低的水平上运行。长期以来，理解和模拟这些较低层次的过程的方法，声称可以模拟更高层次的组织，迄今为止还没有产生预期的结果。许多景观建模者仍然停留在较低的水平上，管理和科学理解所需的集水规模模型要么没有，要么过于复杂，无法进行有意义的使用。现在的重点应该是直接建模的高层次，或紧急，集水区的属性，或生产模型，可以重现这些高层次的属性。沉积物预算是用来探讨这些想法。
At the catchment scale, spatial and temporal organisation emerges from a large number of physical and biological processes operating at lower levels. The long-standing method of understanding and modelling these lower level processes, from which it is claimed higher level organisation can be simulated, has thus far not produced the anticipated results. Many landscape modellers remain stuck at lower levels, and the catchment scale models required for management and scientific understanding are either not available or are too complex for meaningful use. Emphasis should now be given to either directly modelling the high level, or emergent, properties of catchments, or producing models that can reproduce these high level properties. Sediment budgets are used to explore these ideas.