天然径流量

采用距平累积为参数的阶段性辨析方法，分析指出黄河天然径流量年际变化存在明显的阶段性；

The stages of the natural annual runoff variety process are clear when a method with accumulated deviation from average runoff as its parameter was used .

还现修正后水库的天然径流量为6.33亿m3，流域前、后期降水-径流深关系曲线基本趋于一致，反映了近期流域的实际状况，为工程规模和效益的确定提供合理科学的依据。

The modified natural runoff is 0.633 billion m ~ 3 and the relationship curve of early and later rainfall and runoff depth is basically consistency , reflects the actual recent situation of drainage area and will provide reasonable and scientific base for determining project scale and profit .

与传统一维配水模型计算结果相比，MDS配水模型可以分区域计算天然径流量的配置情况，并可以计算区域需水变化情况下各区域水量配置的调配情况。

To sum up , MDS water allocation model can not only calculate the different node 's water allocation , but also indicate the node 's water allocation change .

黄河流域天然径流量分区评价

Divisional assessments of natural runoff in the Yellow River Basin

黄河天然径流量年际变化过程分析

Analysis on the Annual Natural Runoff Variety Process of the Yellow River

黄河兰州以上地区近期天然径流量变化分析

Analysis on Change Characteristics of Recent Runoff in Area above Lanzhou of the Yellow River

不同最小控制时段约束下黄河天然径流量变化阶段性

Natural Runoff Stage Analysis Controlled by the Least Duration of Each Stage of the Yellow River

黄河兰州站天然径流量变化及其计算方法探讨

Discuss on the natural runoff change and Its calculation method at the Lanzhou station of Yellow River

河川天然径流量变化与趋势预测研究对陆地水循环与水量平衡研究和水资源利用等均有重要意义。

Natural runoff variety and current forecasting researches are very useful for terrestrial water cycling and water balance research and water resources management .

以黄河上游兰州站1934年以来实测径流量和天然径流量资料为依据，系统地分析了径流量季节分配、时间变化和人类活动对其影响。

According observed and natural runoff data of Lanzhou station since 1934 , runoff season distribution , temporal change and effect of human activity are analyzed .

气候变化对黄河上游天然径流量影响分析黄河天然径流量变化趋势及其影响分析

Analysis on the Effects of Climate Change on Natural Runoff Volume in the Upper Reaches of the Yellow River ; TRENDS OF ANNUAL NATURAL RUNOFF IN THE YELLOW RIVER BASIN

地下水开发构想是在枯水季节抽取超过天然径流量的地下水，获得需要的灌溉水资源量；

The proposal for groundwater exploitation is to over pump groundwater from aquifers to irrigate in the dry season , where can be refilled by natural recharge in the next wet season .

对长系列资料分析表明，黄河干流天然径流量多年变化有着明显的丰、枯循环周期变化，其周期长度并不稳定；

Through the analysis of the long series data , the variety of natural flow of the Yellow River has obviously plentiful and withered circulation period , the length of the period is unsteady ;

本文以黄河干流的陕县水文站为代表，根据79年（1919&1997年）天然径流量序列资料，对黄河天然径流量年际变化和未来趋势进行了分析。

Based on the 79-year-annual - runoff data from 1919 to 1997 of Shanxian hydrological station , the annual natural runoff variety process of the Yellow River was analyzed and the runoff in the future was forecasted furthermore .

根据黄河兰州站1934年以来天然径流量资料，分析了天然径流量的阶段性和周期性变化规律，探讨了天然径流量计算方法和现有数据的可信情况。

According to the observed natural runoff data of Lanzhou station since 1934 , the phase and periodicity of runoff change are analyzed , the calculation method of the natural runoff and credible situation of current period data are researched .

结果表明，由于1986年以来降水量较前期减少明显，使得1986年以来天然年径流量较前期减少近20%，尤其1994年以来最甚，平均每年减少66.5亿m3。

The results are shown that since 1986 , the annual natural flow is reduced about 20 % than that of the early days , especially since 1994 , the mean annual reduction is 6650 million m ~ 3 due to the obvious reduction of precipitation .

三门峡站天然年径流量周期性分析

Analysis on Periodicity of Natural Annual Runoff Rate at Sanmenxia Station

贵州省年降雨量和天然年径流量年际变化研究

Periodic Changes of the Annual Precipitation and Annual Natural Runoff in Guizhou Province

采用分析还原法，求得还原后的天然用径流量。

Using analysis and revivification method , we got the quantity of natural pathway flow .

黄河三门峡站天然年径流量枯水段分析

Analysis on Low Flow Period of Natural Annual Runoff at Sanmenxia Station of the Yellow River

浅谈天然年径流量系列一致性修正方法的改进

Talking on the Improvement of Annual Runoff Flow Series Compatibility Correction Method CORRECTION On Community Correction

20世纪90年代以来，气候变化对天然年径流量的影响较显著，其影响幅度达13.2%。

The effect of climate change on annual natural runoff volume has been significant since the 1990s , and the affecting scope is 13.2 % .

由于受人类活动、气候等外界变化环境的影响，用于水资源评价计算的天然年径流量序列失去了一致性。

Owing to the effects of changing environment , such as human activities and climate , the natural annual runoff series for water resources evaluation calculation lost their consistency .

利用黄河中游地区降水资料，统计分析了黄河中游近50年降水变化特点，建立了天然年径流量计算公式，计算分析了降水变化对径流量的影响。

The paper analyzes the characteristics of precipitation variation in the last 50 years in the middle Yellow River , establishes a calculation formula of annual natural flow and analyzes the influence of the precipitation variation on runoff by using the data of precipitation of the middle Yellow River .

通过对天然黄土边坡和室内人工填筑的边坡进行降雨浸渗试验，并根据坡面水流运动波模型或扩散波模型理论，推导出一种新的天然黄土坡面设计径流量计算方法。

Though the rainfall immersion experiment on the natural loess slope and the indoor artifical slope , a new kind of the calculation method for design runoff amount on the natural loess slope is derived based on the kinematic wave model or divergent wave model theory of the overland flow .