查询词典 rainfall

The water quality of rainfall, through-fall, stem-flow, litter through and runoff in Pinus koraiensis plantations of the eastern mountainous regions of Heilongjiang Province were studied. Water quality indexes, pH, DO, TURB, TDS, K, Na, Ca, Mg, Cu, Zn, Mn and Fe were also analyzed.

对黑龙江省东部山地红松人工林生态系统的大气降水、穿透水、树千径流、枯透水和地表径流中的pH值、溶解氧、浊度、总溶解固体、K、Na、Ca、Mg、Cu、Zn、Mn和Fe等水质指标进行了检测。

From the analysis's quantitative indices of infrared wavelength split window TBB about typhonic rainfall were found.

TBB 与降水量的对应关系、TBB与各量级降水量的累积频率分布等进行处理与分析，得出台风降水的红外分裂窗TBB定量估计指标。

During the establishment of sediment yield dynamic model at the watershed outlet, it was difficult for us to carry out dynamic monitoring of each impact factors in the whole basin, because it was a long time research and was in very large-scale watershed. Taking into account the interannual variability of sediment yield mainly affected by hydrological conditions of rainfall - runoff and underlaying surface changes caused by soil conservation measures, a combined influence factor which is related to surface runoff modulus and the implementation time of the water and soil conservation project was proposed for the first time. Furthermore, its specific expression was determined through dimensional analysis and non-linear regression multianalysis.

在流域输沙量动态模型的建立中，由于研究时段长、研究流域尺度大，对输沙量各影响因子进行全流域逐年动态监测十分困难，考虑输沙量的年际变化主要受降雨-径流水文条件和水土保持措施等土地管理活动的影响，首次提出与地表径流模数和治理时间相关的综合影响因子，并通过因次分析法和二元非线型回归法确定了具体的表达式。

The T is then related to the watershed geomorphic factor LL/√S for further application in ungauged watersheds for the rainfall runoff simulation.

在实际工程应用上，T值常与集水区地文特性参数LL/√S进行回归分析，以便将无因次单位历线模式应用於无水文纪录之地区。

Rainfall interception loss in unlogged and logged forest areas of Central Kalmantan［J］.

热带雨林生态系统对台风暴雨的再分配规律［J］。生态学杂志，1998，17

In this area, the characteristic of sandstorm distribution in the recent 33 years is the general trend of wavily descending, and the fluctuation range obviously affected by the rainfall the year before.

一年内沙尘暴发生日数3—5月份为最高，占全年的60.2％；就一天而论，14：00-20：00时之间发生的次数占总数的69.57％。

In order to calibrate the model, data of six typhoons such as the flood peak and the peak time are collected to compare with the result of the simulations. The result shows that the difference of the inflow hydrograph between them is very close. The average error of the flood peak is 5.21%. Furthermore, the error of the peak time is less than one hour but Wenny Typhoon is an exception by more than two hours. Therefore, the model could be applied to simulate the rainfall event at Shih-men watershed.

为验设模式模拟精确性，本研究以具代表性之六场台风降雨模拟，针对石门水库入流历线之观测流量与模拟值比较，结果显示模拟之水库入流历线与观测值差异不大，其尖峰流量误差绝对个平均为5.21%；另在预测洪峰到达时间方面，除温妮台风迟迟2小时外，其余均在1小时内，显示本分析模式可应用於石门水库上游集水区暴雨事件模拟。

Yueyang is a wettish area of confienental subtropical monsoon with mild climate,plenty of rainfall

岳阳市属亚热带季风湿润气候区、气候温和、雨量充沛、四季分明，年平均气温17℃左右，多年平均降雨量1387.93毫米，年平均日照1680小时，无霜期270天。

The evapotranspiration was 403mm when water use efficiency was highest. 7.During middling rainfall years, the irrigation was 190mm in entire growing period of wint

禹城地区冬小麦在中等降水年份军全生育期适宜的灌水量为 19m 左右，灌三水，宜重点保证返青拔节和孕穗灌浆期间的水分需求。

Therefore, doing research of the nutrient balance in the loessplateau has its practical signification. Using the long-term rotation and fertilization experiment that disposed in dry land on theloess plateau, the paper has studied nutrients in rainfall import to farmland ecosystem andAmmonia volatilization losses and nutrients disbursal of crop, also estimated the balance ofnutrients in farmland soil.

本文利用设在黄土高原旱地上的长期轮作与施肥试验，主要研究了黄土高原农田生态系统养分的降水带入、作物地上部分的氨挥发损失和作物的养分支出，并进行了 N、P、K 养分平衡评价。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。