最近对古玛雅水资源管理的研究发现，一些城市的城市建筑被用来分流降雨径流到相互连接的水库的重力补给系统中。
Recent studies of ancient Maya water management have found that the urban architecture of some cities was used to divert rainfall runoff into gravity-fed systems of interconnected reservoirs.
降雨径流是形成非点源污染的主要影响因素。
Rainfall runoff is the main factor affecting the formation of nonpoint pollution.
为解决该类地区的降雨径流模拟做了有益的尝试。
It is a rewarding attempt to simulate precipitation and runoff in these areas.
流域内降雨径流流动过程的水文分析具有重要意义。
Hydrological analysis of precipitation runoff routing process in watershed is of very importance.
因此，降雨径流的研究迫切需要引入新的理论和方法。
So, new theory and methods are being urgently needed for the study on the rainfall-runoff forecasting.
城区降雨径流过程主要受降雨过程和下垫面变化的影响。
The process of runoff in urban area is mainly influenced by rainfall process and underlying surfaces variation.
调控降雨径流是解决黄土高原干旱与水土流失并存的重要方法。
Rainfall runoff regulation is an important way to solve the problem of drought and soil erosion in the Loess Plateau.
结果表明，次降雨径流深与其对应所产生的侵蚀量关系非常密切；
The results shows, the relationship between individual rainfall runoff depth and it's sediment yield is very close.
氮流失浓度受降雨径流变化影响显著，而磷流失则表现出逐年递增的趋势；
The TN loss fluctuated with rainfall-runoff, but the TP loss showed an increasing trend year by year.
随着降雨历时的延长，降雨径流中主要污染物浓度均逐渐下降并趋于稳定。
The concentrations of pollutants in runoff descend with the time and tend to be stable.
因此开展洪涝预报和渍害治理至为重要，而降雨径流计算是其首要解决的问题。
In view of the above mentioned facts, it is very important to develop flood forecasting and waterlogging harnessing. while rainfall-runoff calculation is the kernel to solve these problems.
本文探索利用计算机进行优选、率定符合水文特性的降雨径流经验相关关系的方法。
This paper researches the approach for optimal selecting the correlation relation between rainfall and run off, conforming to hydrology characteristic using computer.
土壤蒸散发量的计算，在墒情预报、降雨径流计算及水资源评价中都占有重要的地位。
Calculation of quantity of soil evaporation takes an important part in moisture content prediction, rainfall surface flow calculation and evaluation of water resources.
识别影响城市降雨径流污染的主要因子是城市降雨径流污染治理和管理的前提和基础。
Identified the main factor influencing urban rainfall-runoff pollution provides a scientific basis for urban rainfall-runoff pollution control and management.
坡面降雨径流泥沙起动规律研究对控制坡面水土流失、开展流域综合治理具有重要意义。
Sediment incipient motion mechanism of rainfall runoff is the important theoretical foundation for soil and water loss control on sloping land and comprehensive treatment of watershed.
用SCS降水-径流模型对陕北渭北多个典型小型集水区降雨径流量进行了分析与计算。
SCS model is applied to calculating runoff amount of several typical small watersheds of North of Shaanxi and Weibei .
农业非点源污染主要由降雨径流、土壤侵蚀、地表溶质溶出和土壤溶质渗漏4个过程形成。
Agricultural non-point pollution is formed by 4 processes of rainfall runoff, soil erosion, surface solution stripping and soil solution seepage.
在生成数字流域的基础上，采用WMS嵌入的HEC - 1模型进行降雨径流模拟研究。
Based on digital basin, HEC-1 model, a part of hydrological models in WMS, was selected to simulate the rainfall-runoff process.
简要介绍了人工神经网络用于洪水预报的基本原理，对降雨径流预报的网络模型进行了改进。
This article presents the principle of ANN briefly in the application of flood forecast and an improved network algorithm of rainfall runoff forecasting.
相对于传统的露天种植，塑料大棚改变了降雨径流和土壤侵蚀过程，进而影响面源污染物的产生。
Compared with traditional uncovered farmland, a greenhouse region changes the runoff, erosion, and affects generation of nonpoint source pollutants.
分析研讨了洮河流域的流域特征、主要自然地理要素对水文的影响，以及降雨径流要素的变化规律。
Analyze the hydrologic characteristics of tao river basin, the influence on the hydrology progress imposed by physiographic factors, and variation of the relationship between rainfall and runoff.
降雨径流模拟是土壤侵蚀、非点源污染、地表水量平衡计算等众多研究领域的非常重要的技术手段。
Rainfall-runoff simulation is the very important technique for soil erosion, non-point source pollution, surface water balance calculation and some other study fields.
根据实测资料对SCS法的部分参数作了修正，使小块农田的降雨径流关系适合上海的区域自然地理条件；
After analyzing data of real measure, part parameters of SCS was amended and the relationship of precipitation runoff suiting physical geography of small farmland in Shanghai was made.
采用野外现场试验方法，研究了滇池流域降雨径流污染物特征及天然沸石对模拟降雨径流中污染物的去除。
The characteristics of pollutants in the precipitation runoff discharging to Dianchi Lake and the removal of pollutants by natural zeolite were studied.
通过对梁王河流域和大鲫鱼沟流域实测降雨径流资料的分析与反演，提出了适合该区域的产流计算CN值。
CN values of the SCS model are calibrated by matching the modeled results with the observed ones for the gauged river catchments of Liang.
研究双季稻田不同施肥量处理的氮磷降雨径流损失规律，对于指导双季稻合理施肥、保护水环境具有重要的现实意义。
It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.
通过农田降雨径流监测试验，并对上海市历时23年的逐日降雨资料进行汇总与系统分析，确定黄浦江流域农田地表降雨径流特征。
Through monitoring farmland runoff and analyzing daily rainfall for 23 years in Shanghai, this paper provided the characteristics of farmland rainfall runoff in Huangpu River Basin.
通过农田降雨径流监测试验，并对上海市历时23年的逐日降雨资料进行汇总与系统分析，确定黄浦江流域农田地表降雨径流特征。
Through monitoring farmland runoff and analyzing daily rainfall for 23 years in Shanghai, this paper provided the characteristics of farmland rainfall runoff in Huangpu River Basin.
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