In this research,based on the collation of historical data and detailed field investigation,the number and distribution characteristics of existing gully projects in the Ten Tributaries area,Inner Mongolia section of the middle Yellow River since 1986 were analyzed.Through determining the main parameters that affect the sediment reduction of gully engineering,the sediment reduction of check dam,flood diversion land,reservoir and Gufang in the study area was calculated by using a detailed field survey.The results show that the sedimentation has been reduced by a total of 59.9515 million tons.Among them,the sediment reduction of check dam was 32.0561 million tons,the sediment reduction of flood diversion land was 14.6015 million tons,the sediment reduction of reservoir was 11.8276 million tons,and the sediment reduction of Gufang was 1.4661 million tons.The analysis of sediment reduction characteristics of channel engineering in different periods shows that the sediment reduction amounts of channel engineering in 1986-1999,2000-2009 and 2010-2018 were 28,092,600 t,15,979,300 t and 15,879,700t,respectively.The effect of sediment reduction of gully engineering in the Ten Tributaries area is significant.The research results provide a data support for quantitative evaluation of regional sediment reduction benefits of typical soil and water conservation engineering measures,and have important guiding significance for the decision-making in"sand blocking and water changing",flood control,anti-flooding control and optimization of soil and water conservation measures in the Yellow River Basin,Inner Mongolia section.
sediment retentiontributarieschannel engineeringsoil and water conservation measuresYellow River Basin
NETL
NSTL
万方数据
维普
