首页 | 本学科首页   官方微博 | 高级检索  
     


Accuracy of two sampling methods used to estimate sediment concentrations in runoff from soil-loss plots
Authors:R. D. Lang
Abstract:The use of a bottle sampler and a soil pipette to quickly and accurately sample soil-water mixtures of known sediment concentrations was tested. Both devices failed to sample adequately soil-water mixtures containing 1–187 gl?1 of solid particles. Poor sampling ability was attributed to rapid settlement of larger particles and to innate deficiencies in the sediment trapping ability of the samplers. These sampling devices should not be used to estimate sediment loads in runoff from soil-loss plots, and erosion data from plot studies which have used a sediment sampling procedure should be treated with caution.
Keywords:Runoff plots  Soil loss  Sediment concentrations  Sampling errors
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号