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From stability tests for mean annual runoff at Lijin gauge station, a step trend was detected and the most significant change points were obtained. 至于1986年突变点的发现，目前还不完全清楚其原因，最可能的原因是气候变化和上游过度的用水。
As a result, the runoff in future for Luanhe River Basin and Sanggan River Basin is 74 mm and 71 mm, respectively, which is approximately a quarter of mean annual runoff (284 mm) of the whole country. 未来滦河流域年径流深减少 2 7mm ;流量减少 14 .;72× 10 8m3;桑干河流域径流深增加 2 6mm;流量增加 12
mean annual runoff 多年平均年径流,年平均径流
The grey self-memory model for annual runoff was established on grey system and self-memory theory. 摘要将灰色系统建模方法和自记忆建模结合起来，提出了年径流预测的灰色自记忆模型。
The square ratio method and basin precipitation method are commended for annual runoff calculation. 在年径流计算中，建议采用面积比法和流域雨量法。
Last, it compared with the same annual runoff depth isoline map of First surface water resource evaluation. 年径流深等值线图的编制对于提高地表水资源评价成果精度，分析年径流深参数地区变化规律具有重要意义。
Then the change of annual runoff distribution in the headwaters of the Yangtze River is discussed. 结果表明：长江源径流年内分配特征在1960年前后与1988年前后径流年内分配较为相近，1970-1976年与1993年以后径流年内分配较为相近。
AMong the forest factors, the effects of increasing forest coverage was larger than the unit stock voluMe increased on fluvial annual runoff. 在森林因素中，森林面积增加对河川年径流量的影响程度大于单位集水区面积森林蓄积量增加的作用。
The mean annual rainfall ranges from around 1 300 millimetresat Waglan Island to more than 3 000 millimetres around TaiMo Shan. 本港各区的每年平均雨量差别颇大，横澜岛约为1300毫米，而大帽山附近则超过3000毫米。
An annual runoff forecasting method is presented based on unit root test, cointegration test and error correction model of the upper and lower reaches of the Second Songhua River. 摘要介绍了协整分析理论，结合第二松花江流域上下游的年径流量，阐述了单位根检验、协整检验、误差修正模型的理论与分析方法。
In addition to age, mean annual precipitation was shown significant relation to biomass allocation of root. 除年龄对根生物量分配比例有极显著负相关外，降水量对根系生物量分配比例亦有显著的负相关。
First, it collected data from runoff stations and confirmed the principle of isoline mapping.Then, it analyzed the distribution of annual runoff parameter in Hebei province. 首先搜集整理了选用径流站的资料，确定了统计参数及等值线图绘制原则，然后对河北省径流深参数地区分布进行了分析，最后与第一次水资源评价成果进行了比较。
The mean annual dose and the mean accumulated dose for the whole bodywere 0.26 rad and 3.24 rad,respectively. 平均年剂量为0.;26rad;平均累积剂量为3
The model is applied to forecast the annual runoff of QingTong Xia of Yellow River and compare with Artificial neural network and nearest neighbor bootstrapping regressive model. 应用此模型对黄河青铜峡年平均流量进行预测,并与单独的人工神经网络模型和最近邻抽样回归模型预测结果进行比较分析。
Langbein W B , Schumm S A. Yield of sediment in relation to mean annual precipitation. Trans. Amer. Geophys. Union. 顾弼生.;关于黄土高原植树造林的认识1黄河水资源研究所;1990
In this paper, the wavelet multiple time scales analysis method was used to analyze annual runoff time series from 1882 to 2006 of Yichang Hydrological Station. 运用小波分析的多分辨率功能，对宜昌水文站1882-2006年年径流量时间序列资料进行了多时间尺度分析。
The above-ground biomass of arbor layer amounted to 54.826 t/ha, and mean annual production amounted to 10.229t/ha. 9年生萌生林乔木层地上部分生物量为54.;826t/ha;年平均净生产量为10
In this paper, the characteristics and tendency of annual runoff changes of Naolihe River are analyzed, which is regarded as a typical marshy river in Sanjiang plain. 在分析三江平原典型沼泽性河流挠力河径流演变特征及趋势的基础上,应用灰色关联分析和径向基函数网络等方法,探讨了引起径流量减少和发生突变的原因。
The mean annual precipitation was fluctuating with little change, but has a augment trend in the last 3 years. 年降水量波动变化，增减幅度不大，但近3年降水量有增多的趋势。
Preschool education administrators earned mean annual wages of $46,370 in 2008, the BLS reports. BLS报告显示，学前教育者的2008年的年薪是46,370美元。