欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
研究水土保持综合治理对小流域侵蚀产流量和次降雨径流过程的影响。以黄土丘陵沟壑区第Ⅲ副区内治理小流域桥子东沟和未治理小流域桥子西沟为对象,分析水土保持综合治理不同阶段小流域侵蚀产流量年际变化和次降雨径流过程。结果表明：桥子东沟产流次数较桥子西沟减少了42.86%,年径流模数为桥子西沟的5%～63%;桥子东、西沟的多年平均径流系数分别为1.80%和4.03%;桥子东、西沟年径流深比值略有下降,治理后期在0.6以下。桥子东沟在治理后期的次降雨起流和洪峰流量的出现都晚于桥子西沟;桥子东、西沟次降雨洪峰流量、洪水历时比值不断下降,治理后期分别为0.41和0.61。水土保持综合治理的实施有效减少了治理流域的侵蚀产流量,对次降雨径流过程影响很大。
英文摘要：
In order to study the effect of soil and water conservation management on water erosion and runoff process at small watershed,the Qiaozi-East watershed with management and Qiaozi-West watershed without management at third sub-region of Loess Plateau were selected as studying area.Rainfall and runoff data were collected and the annual change of soil erosion and runoff processes were analyzed at different stages of management.Times of runoff at QiaoziEast watershed were reduced by 42.86% as compared with that at Qiaozi-West watershed.Annual runoff modulus at Qiaozi-East watershed accounted for 5%-63% of that at Qiaozi-West watershed.Annual mean runoff coefficients of Qiaozi-East and Qiaozi-West watershed were 1.80% and 4.03% respectively.The ratios of annual runoff depths at Qiaozi-East watershed to that at Qiaozi-West watershed decreased slightly and decreased slightly to less than 0.6 finally.Runoff initiated and peak flow occurred at Qiaozi-East watershed all later than at Qiaozi-West watershed with years of management.The ratios of peak flow and runoff duration at Qiaozi-East watershed to that at Qiaozi-West watershed were decreased to 0.41 and 0.61 respectively finally.
同期刊论文项目
同项目期刊论文
A mechanic-electronic sensor for automatic measurement of sediment-laden flow rate from erosion runo
Sediment yield modeling for single storm events based on heavy-discharge stage characterized by stab
Combined effects of water quality and furrow gradient on runoff and erosion for a soil in North Chin
Effects of polyacrylamide application on runoff, erosion, and soil nutrient loss under simulated rai
Effects of rainfall intensity and antecedent soil water content on soil infiltrability under rainfal
Effects of transport capacity and erodibility on rill erosion processes: A model study using the Fin
Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in Chin
Modelling the runoff-sediment yield relationship using a proportional function in hilly areas of the
Effect of spatial scale on suspended sediment concentration in flood season in hilly loess region on
期刊信息
位置：