查询词典 runoff primary

And it has given the effects of the all factors on the runoff by 1D river networks mathematical model. Due to the natural and artificial influences, the water-sediment transport has greatly changed. It is characterized by marked decrease in runoff and sediment diverted from these outfalls and increase in water-sediment transport of main stream. The key factors causing these changes are aggradation of the three outfalls channels and Jingjiang river cutoff work.

结果表明，受自然因素和人为因素的影响，荆江－洞庭湖江湖水沙输移有了较大调整变化，主要表现为三口分流分沙大幅度减小，干流水沙输移增加；江湖关系变化的主要因素是三口分流道的淤积萎缩和荆江裁弯。

It indicated that the annual runoff of the main and tributary of the Yarlung Zangbo river had an obvious decline trend during 1960s and reached the minimum in 1980s, since then, the annal runoff increased and a relatively wet season occurred in 1990s.

同时研究还发现，雅鲁藏布江干支流在20世纪60年代左右径流量较大，但在进入60年代中后期之后，年径流量呈逐渐减小的趋势，这种趋势在80年代附近达到极小值，此后径流量逐渐回升，并在90年代后逐渐进入相对丰水期。

It was found that, for the control treatment the average runoff depth was 3.72mm per 10mm, the water loss index was 37.2%, the average soil erosion was 43.6 kg*hm-2*10mm-1, and the soil erosion modulus was 7.42 t*km-2*a-1, which are all high in the 4 treatments. For the other three treatments, the surface runoff and the average soil erosion amount were 2.20%-67.08%and 43.81%-90.83%lower than those of the control, respectively. The most effective pattern for soil conservation was the artificial forest with underbrush treatment, and the best water conservation pattern was the treatment of planting tea bush on contour terrace.

结果表明，CK的平均径流深度为3.72 mm/10 mm，降水流失率为37.2%，平均每10mm降雨的土壤侵蚀量为43.6kg*hm-2，年土壤侵蚀模数为7.42 t*hm-2；其它3个不同植被覆盖处理的地表径流量比裸地对照降低2.20%～67.08%，平均土壤侵蚀量减少43.81%～90.83%；林下地表覆盖处理的保土效果最好，等高梯田种植茶树处理的保水效果最好。

Wavy distribution of soil water along hillslope resulted from the fluctuation of runoff, upslope runoff infiltration, lateral downslope flow, and the difference of infiltration rate and evapotranspiration.

4土壤水分沿坡面呈"波浪形"分布是坡面径流的波动性、上方来水的沿程入渗、侧向沿坡向下流以及坡面各处入渗性能和蒸发蒸腾作用的差异等综合作用的结果。

The result showed that hole shape and banding shape of soil preparation could significantly decrease runoff and soil erasion amount,and hole shape of soli preparation was the best to decrease runoff and soil rasion amount by 34% and 42% respectively.

结果表明，穴状整地林和带状整地林对减少地表径流和土壤侵蚀均具有明显的作用，对减少营养元素的流失量作用显著，年减少土壤养分流失量为79.75～135.40kg·hm－2·a－1。

Based on the mentioned above ideas, it describes a method to determine the parameters involved in the hydrologic models when considering the effect of human activity on runoff. By the approach, the runoff is more clearly revealed. The concept of pattern unit hydrograph and its estimation method are presented.

基于上述思想，阐述了考虑人类活动影响的流域水文模型参数的确定方法，将人类活动影响纳入流域水文模型参数的确定过程中去，可以更深刻地了解流域水文的基本规律，揭示人类活动对其径流的影响。

The study results indicate that the simulation results in Zhangjiashan and the area between Xianyang and Lintong are more reasonable. Layered Continuous Muskingum method is used to rout the flood in mainstream, and the runoff process at Huaxian station is composed of the results of Muskingum and the runoff simulated in interzone.

在渭河下游流域移用秦渡镇控制流域的模型参数来模拟区间的洪水过程；干流洪水演算采用马斯京根分层连续演算法，最后将区间模拟的径流过程和干流径流过程相叠加形成华县站的流量过程。

The drainage system shall be effectively designed, constructed and operated to avoid discharging construction site runoff into the streams and to transfer all runoff during construction and operation to the Wong Lung Hang nullah in Tung Chung for discharge.

排水系统须妥善设计、建造及营办，以免建造工地径流排入河道，并须把建造及营办期间所造成的全部径流导引至东涌的黄龙坑明渠排放。

Thirdly, the rain gauge observations and QPE/QPF mean areal precipitation derived from radar were used for runoff simulation and forecast using a semi-distributed rainfall-runoff model for Xianghongdian and Foziling subcatchments, as well as several watersheds subdivided from Foziling.

用加密地面雨量计网测得的面雨量和雷达—雨量计联合测量降水或外推的面雨量作为TOPMODEL水文模型的降水输入进行了两个水库所控制的流域及其中一些子流域的流量模拟和预报研究。

Revisal coefficient models of moisture were rectified in different extents of water using on the basis of dynamic monitor data of soil moisture, surface runoff and superficial ground water, and moisture revisal coefficients in different conditions of nature and fully utilization of surface runoff and superficial ground water.

在实地动态监测耕地土壤水分含量的基础上，修正建立水分订正系数模型，并计算出龙何屯自然条件下的水分订正系数。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。