年流量
- annual flow
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关于森林对河川年流量的影响及其意义
The influence of forests on the annual flow in rivers and its significance
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从森林对河川年流量影响、森林对洪水的影响2个方面,分析探讨了森林对河川径流调节作用。
In the light of the effects of forests on flood and rivers ' annual flow , the regulatory application of forests to rivers ' run-off is analyzed .
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分析得出:长江中下游多年平均年流量约为黄河的20倍。
Some interesting results have been shown that the interannual average discharge in the middle and low reaches of the Yangtze River is about 20 times of that in the Yellow River .
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该模型表明辛安泉当年流量与前1年流量、前11年降水量及前1年岩溶水开采量有关。
The model indicates that the discharge of the Xin ' an springs has relation to the spring discharge of last year , rainfalls of earlier 11 years , and karst water exploitation of last year .
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降水量是影响黑河上游流量的最主要因子,夏季降水量的增加与夏季流量的增加关系密切,而夏季流量的增加最终影响到了年流量的增加;
Precipitation is the primary factor to impact the flow of the upper reaches of the Heihe River , the increasing of precipitation is closely related to the increasing of flow in summer , and the increasing of flow in summer impacts the increasing of annual flow .
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GM(1,1)改进模型在年径流量预测上的应用
Application of improved GM ( 1,1 ) model in forecast of annual runoff
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对年径流量的预测采用了两种方法,分别为时间序列分析和人工神经网络,本文主要用ARIMA模型和三层BP网。
ARIMA model and BP networks with three layers are mainly used in the paper .
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近50a来塔里木河源流区年径流量的持续性和趋势性统计特征分析
Analyses of the Durative and Tendency of Annual Runoff in the Headwaters of the Tarim River in the Recent 50 Years
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亚马逊CEO杰夫•贝索斯(JeffBezos)称,“3G阅读器的便利性深受顾客喜爱,而公司承担了3G无线联网的费用,所以为顾客省下了包月或包年数据流量费。”
Amazon CEO Jeff Bezos said " customers love the convenience of a3G reader [ and ] Amazon picks up the tab for the3G wireless , so you have no monthly payments or annual contracts . "
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采用Kendall秩相关检验对大通站年平均流量1953~2002年时间序列进行趋势检验,检验结果表明,大通站年平均流量存在一定的增加趋势,但趋势不显著。
To study on the time-series of Datong station from 1953 to 2002 with Kendall method , the results showed that the annual runoff has indistinctive increasing trend .
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本文以Matlab神经网络工具箱GUI为依托,用地表水资源时间序列的年径流量资料作为训练样本的基础,生成训练样本输入数据和期望输出数据,建立时间序列神经网络预测模型。
This paper created train sample input and expectation output data relying on Neural Networks tool boxes GUI based on Matlab with surface water resource quantity time series data as train sample basic , then make forecasts based a model of temporal serial Neural Network .
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结果表明:杉木人工林地土壤含水量为404.4mm,土壤贮水能力达1220t/hm2,年径流量474.1mm,洪峰径流系数0.19。
Results showed that average soil water content , soil water storage capacity , yearly runoff , runoff coefficient of flood peak in Chinese fir plantation were 404.4 mm , 1 220 t / hm 2,474.1 mm , 0.19 respectively .
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乌鲁木齐河年最大流量的混沌特征研究
Study on Chaos Characteristics of Annual Utmost Volume of Urumqi River
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长江源区1956-2000年径流量变化分析
Discharge changes of the Yangtze River in source area during 1956-2000
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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
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近年塔里木盆地河川年径流量变化趋势分析
Recent Tendency Analysis of River Discharge in the Tarim Basin
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利用多条树轮重建黑河上游地区540年径流量
540-year Runoff Reconstruction of Upper Heihe River Using Tree-ring Chronology
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用随机过程原理进行年径流量预报的研讨
Study of Annual Flow Forecast Using Principle of Random Process
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利用树轮资料重建通天河流域518年径流量
A 518-year Runoff Reconstruction of Tongtian River Basin Using Tree-ring Width Chronologies
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监利水文站年径流量序列多时间尺度分析
Multiple Time Scales Analysis of Annual Runoff Time Series at Jianli Hydrologic Station
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森林采伐面积与年径流量呈正相关,森林采伐能增加河川年径流量;
Forest harvesting could also significantly increase the peak flood and snowmelt runoff .
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时序递阶组合模型在冰川河流年径流量预测中的应用研究
Application of Annual Runoff Prediction with Time Series Combining Model on Ice Stream
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基于神经网络的淮河流域年径流量预测模型
Prediction Model of Annual Runoff in Huaihe River Basin Based on the Neural Network
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主分量与广东北江年最大流量预测
Principal components and prediction of annual maximum discharge in Beijiang River in Guangdong province
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流域年径流量组合预测方法研究与应用
Study on combination forecast method of annual runoff and its application in river basin
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区域年径流量的计算公式推导
Calculative Formula Deduction of the Regional Annual Off-run
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以长江流域为主的南方河流,年径流量较大,泥沙含量相对较少;
The austral rivers have larger annual runoff volume and relatively less silt content ;
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嘉陵江流域年径流量的变化及其原因
Temporal Variation in Annual Water Yield of the Jialingjiang River and the Formative Causes
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年平均流量已经算出。
The average annual flow was calculated .
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气候的变化直接影响着开都河年径流量的变化。
The Climate changes have a direct impact on the river in a runoff changes .