Development of Study on Sediment Budget Recently
近期流域沙量平衡计算研究进展

The sediment budget affords an effective conceptual framework for quantifying soil erosion,sediment mobilization,transportation,deposition and storage within,and sediment output from,a drainage basin.And it constructs a more complete picture of sediment generation and distribution within basins and permits an assessment of the efficiency of the sediment delivery system.A range of studies on it have been undertaken with more and more advanced methods such as GIS,RS,GPS,fallout radionuclide measurements,etc.around the world and have got some satisfying results,but sediment budget has been applied in few studies and has not been well developed in China,so the recent developments of methods in sediment budget researches were concluded and their advantages were evaluated to encourage the national development of sediment budget researches,and some problems in these researches were mentioned too,that will make sediment budget a helpful tool to establish a reliable and scientific basis for formulating catchment management strategies.