查询词典 runoff

Under the hypothetic climate change scenarios of 20% change in precipitation and –2℃ change in temperature, annual runoff in the four regions will increase 37.8%, 62.3%, 73.2% and 48.2% respectively in order.

根据黄河上中游未来气候的可能变化，假定的气候变化方案为：降水变化为±20%、±10%和不变，同时气温保持不变及变化±1℃、±2℃共25种组合。

The hypsography affects the movement of surface and underground runoff, along with it water and salt content in soils are redistributed and accumulated.

地形的高低起伏，影响地面、地下径流的运动，土壤中的水分和盐分也就随之重新分配和积累。

A grid distributed hydrological model with incompact structure is built on the basis of the theory of runoff formation on repletion of storage.

以蓄满产流理论为基础，建立了一个网格型松散结构的分布式流域水文模型。

in pearl river delta region,water environmental contamination featured big amount and mixed types and centralization of pollutant discharge with latent combined pollutants,striding boundary pollution,severe municipal pollution,the trend of regional pollution being extended from cities to rural area,infall of salty tide in recent years.as a result,the unwatered complexion was hastened due to bad water quality.the factors of water environmental contamination were analyzed as the natural factors including especial hydrographic net distributed pattern,water body runoff characteristic,water resource distributive regional difference,infall of ocean tide,and so forth; the artificial factors as inconsequence of economic development mode and distribution of industry and cities planning,lagging environmental infrastructure,indifferency of environmental consciousness,dissonance of economic development and environmental protection.

珠江三角洲地区水环境污染特点表现为：污染物排放量大、类型杂且集中，潜在复合污染出现，跨界污染突出，城市污染依然严重，并呈现出从城市向农村蔓延的区域性污染趋势，加上近几年咸潮入侵加剧，使区域水质型缺水的局面更趋紧张。造成这种污染局面的因素：一方面受控于区域内特殊的河网分布格局，水体径流特征、水资源分配的地区性差异以及海潮入侵等自然因素；另一方面也反映了区域经济发展模式，工业布局和城市规划不尽合理，环境基础设施滞后，环境意识淡薄，经济发展与环境保护不协调等人为因素所致。

The computing methods of rainfall input and runoff generation and flow concentration in grid elements are discussed deeply.

深入探讨了单元网格的降雨输入和产汇流计算方法。

VWMO Intercomparison of models for snowmelt runoff Operational Hydrology Report 23(WMO No.646), 1986,null

张勇%刘时银%丁永建中国西部冰川度日因子的空间变化特征地理学报， 2006，1

The result shows that runoff drought index and spring wheat climate output of Hexi irrigational area appears opposite variation tendency.

研究结果表明，径流量乾旱指数与河西灌溉区春小麦气候产量呈反位相的变化趋势。

By comparing different series of topography data, scouring and sedimentation are calculated in a more accurate way. By analyzing the shift of the isobath and shore line, the evolution of typical cross section, a preliminary study of the response to the changes of upstream runoff and sediment are carried out, due to the effect of the construction of the Three Gorges Project.

分别对北支、南支和南汇边滩的横向、纵向变化情况进行了分析，对各自的冲淤进行了定量的计算，获得地形冲淤变化的强度和空间分布，并探讨了长江口地区的冲淤演变对三峡工程引起的长江供沙量变化的响应情况。

Based on the isochronal method theory and the computer simulation technology,this paper develops precipitation runoff simulation modeling for urban drainage pipeline systems.

根据等流时线法理论和计算机模拟技术，建立了城市雨水管网系统雨水口流域降雨径流模拟模型。

This study deals with precipitation fluctuations in the transitional zone between the arid and semiarid regions of northwest China from the 1950s to the 1990s,discusses spatial variation of 250 mm isohyet during the dry years and wet years; and systematically studies rainfall harvesting system relative to runoff inducing catchments, water storage and highly efficient utilization and evaluates the influence of rainwater harvesting on regional development and environment conservation.

分析了干旱半干旱区过渡带降水的时空变异性，确定了250 mm降水量线在丰枯年份的空间摆动幅度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。