地表径流量
- 网络surface runoff
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多沙粗沙区的地表径流量为31.18亿m3,扣除泥沙后的清水资源量为28.21亿m3。
The surface runoff of this area is 3.118 billion m3 and the clear water resources 2.821 billion m3 after deducting sediment .
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在自然降雨后,以1m×1m为基本单位推算其可能产生的地表径流量,根据实际径流量推算地表径流水在径流过程中下渗的数量。
After natural raining , surface runoff amount is calculated in basic unit of 1 m × 1 m , and based on actual runoff amount the infiltration amount of surface runoff is also calculated .
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结果表明:皖水流域内输沙量与日雨量为50~100mm的暴雨和地表径流量的关系最为密切。本文通过对输沙量与降雨径流因子研究。
The results indicate that an amount of sediment transport has a very close relation with rainstorm of 50 ~ 100 mm of daily rainfall and runoff . This paper deals with the relationship between an amount of sediment transport and runoff factor .
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地表径流量较地下径流量偏小70.3mm;
The ground runoff is 70.3 mm less than underground runoff .
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人类活动对海河流域地表径流量影响的研究
Study on influence of human activity on surface runoff in Haihe River Basin
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径流曲线数法在黄土高原地表径流量计算中的应用
Application of Runoff Curve Number Method on Loess Plateau
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大陆的机械剥蚀速率与区域高度和地表径流量呈正相关关系。
Mechanical erosion rate has a positive correlation with district average elevation and runoff .
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稻草覆盖和纸膜覆盖可以有效减少地表径流量;
Covering peanut with rice straw and paper film could decrease surficial runoff effectively .
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华北平原东部全新世古年地表径流量的估算
The estimation of ancient annual surface runoff of Holocene in eastern part of the North China Plain
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相对于黄姜,红薯可以减少79.60%的地表径流量,可以减少39.52%的泥沙量。
Compare to Dioscorea ZingiBerensis C.H.Wright , sweet potato reduce 79.60 % ground runoff flow and 39.52 % sediment erosion .
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径流曲线数法是美国农业部开发的计算地表径流量的经验模型,它有使用简单、有效,且适用于资料匮乏地区等优点。
Runoff curve number method , an empirical model to estimate the storm runoff , was developed by USDA SCS .
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研究结果表明:1.水稻秸秆编织物覆盖能减少坡耕地红壤地表径流量。
The results showed as follows : 1 . Rice straw mat mulch reduced the surface runoff of upland red soil .
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结果表明,山东水资源量的年际变化大且呈快速下降态势,其中,地表径流量的下降尤为明显;
The results showed that the interannual change was great and water resources decreased rapidly , especially the amount of runoff .
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长江下游流域第四纪古年地表径流量的估算&一种第四纪古水文学研究方法的应用尝试
Estimating Annual Runoff of Quaternary past for the downstream catchment of Yangtze river : an application of an approach to Quaternary PALAEOHYDROLOGY
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地表径流量的增加是研究区地下水、降水变化和气温上升导致冰雪融水增加共同作用的结果。
The increasing trend in runoff was the results of variation of groundwater , ice-snow meltwater and precipitation caused by global climate change .
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对下垫面状况的改变对地表径流量、陆面蒸发量、降水入渗量、包气带土壤水蓄变量的影响进行了分析。
Influence of underlying surface variation on surface runoff , land evaporation , rainfall infitration and storage variation of unsaturated soil water were analysed .
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地表径流量很少,年平均值为17.1mm,只占年降雨量的0.6%。
Surface flow was tiny , and annual mean surface runoff was 17.1 mm , which accounted for only 0.6 % of annual rainfall .
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水土保持也使河川地下径流量有所减少,但降低程度较地表径流量小。
Furthermore , soil and water conservation also resulted in the underground flow decrease but its decrease extent is smaller than of surface flow .
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地表径流量升高的地区以西南部及东北部高山地区较为明显,在南部沿海部分地区亦有类似现象。
Increased surface runoff was found in the mountainous areas of the southwest and northeast , and in some areas along the South coast .
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结果表明:坡耕地、杉木林地的次降雨地表径流量、地表径流侵蚀模数与坡度、降雨量、降雨强度、植被盖度等相关显著。
The results showed that the correlation between total surface runoff and erosion modulus with land use types and those influence factors above was significant .
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而地表径流量、次地表径流量、地下径流量及河川径流量主要受降水量变化的影响,受气温变化的影响相对较小。
But the surface runoff , subsurface runoff , ground water and runoff are mostly effected by precipitation . The temperature influence on them is comparative less .
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地表径流量同降雨前0&30cm的土壤湿度因子成正比,冲刷量则与此成反相关。
The amount of runoff was in direct proportion but the quantity of soil loss in inverse proportion to 0 & 30cm soil moisture factor before raining .
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提出气候环境变化对出山地表径流量的影响程度取决于河流的补给类型,并分析了不同补给类型河流受气候环境变化的特征;
The degree of the impacts of the weather environment variety on the stream runoff in the mountain area were decided by the recharge types of the stream .
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晋西黄土地区场(时段)暴雨地表径流量计算方法&下渗曲线法初探
Study on the Surface Runoff Yield in the Each Rainfall of Over a Duration Time in West Shanxi Province ── The Method of Infiltration Property Curve of Philip Equation
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试验表明,在侵蚀劣地上种植牧草,可减少地表径流量50%~60%,减少泥沙冲刷量60%~90%;
It is shown by the experiments that , by planting forage grass in the erosive inferior land , 50 % ~ 90 % sediment erosion can be reduced ;
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红薯是一种适合本地推广种植的品种。(2)不同耕作方式在玉米生长的前期和后期地表径流量和泥沙侵蚀量有所不同。
Sweet potato is a crop species suitable for local popularization . ( 2 ) Different tillage methods have different ground runoff flow and soil erosion at early and late stage .
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作物产量水平的提高,在直接消耗大量水资源和土壤水分的同时,也使农田蒸散发加强,从而造成地表径流量和地下水补给量的减少。
The level increase of crop output directly consumed a great lot of water resources and soil water , simultaneously had farmland evapotranspiration strengthened , and also brought about surface runoff and groundwater recharge decreasing .
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地表径流量是研究小区内总径流的主要组成部分,其占了总径流量的60%以上,在大雨强下甚至能超过90%。
Surface runoff , the main contributor , makes up more than 60 % of the total runoff in the study area . It even exceeds 90 % in the case of high intensity rainfall .
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1997-2002连续枯水年组对产流系数、地表径流量、地下水环境、水资源总量产生了较大影响,给社会、经济、环境带来严重危害。
The continuous dry years happened in 1997-2002 which evidently influenced runoff coefficient , surface runoff , environment of groundwater and water resources amount , the drought has destroyed the economic development , environmental conservation and the social stabilization .
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与花生单作系统相比,5龄南酸枣花生间作和9龄南酸枣花生间作系统地表径流量分别减少21%和6%,土壤侵蚀量分别减少11%和23%。
Compared to what was in the peanut-only system , runoff was decreased by 21 % and 6 % , and soil erosion by 11 % and 23 % , respectively , in a 5-year-old and 9-year-old Choerospondias axillaris-peanut alley cropping systems .