10/28/2022 0 Comments Drifting lands torrent![]() In this study, the excavation/polyurethane-foam technique for estimating total bulk density was applied to vertically exposed alluvium with high coarse-fragment content. As total maximum daily loads (TMDLs) for water bodies impaired by turbidity or suspended sediments become more numerous, a simple, in situ field technique will be needed to estimate the bulk density of readily erodible stream bank material so that reasonably accurate sediment loading rates can be estimated. Eroding stream banks produce a sediment load to the riverine system and can cause reduced water quality as a result of increased suspended sediment. The results suggest that the correct choice of tillage method (no-tillage and ploughing across the slope) on a Stagnic Luvisol can protect the soil on a slope.ĭespite many decades of education and refining land-use practices, accelerated stream bank erosion is still prevalent in the United States. The highest content of clay particles was recorded in erosional drift from the no-tillage treatment in all investigation years. The standard deviation and coefficient of variation for clay and silt were higher in erosional drift than in plot soil for all methods. In most cases, more silt particles were found in erosional drift than in plot soil. Sometimes more and sometimes fewer fine sand particles were found in erosional drift than in plot soil. The standard deviations of coarse sand indicated that approximately the same quantity of coarse sand was found in plot soil and in erosional drift for all tillage methods. ![]() ![]() The results obtained suggested that erosional drift was generally richer in silt and clay particles. DRIFTING LANDS TORRENT TRIALThe texture of the tilled soil and the erosional drift for each trial method was recorded in the same plots. The total quantity of erosional drift on a Stagnic Luvisol on which six tillage methods were used was measured over 5 years of investigation. ![]()
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