1)rainfall runoff pollution降雨径流污染
1.The results from characteristics of precipitation runoff, the process of runoff and soil erosion showed that soil and water loss is a serious form of rainfall runoff pollution, analysed and discussed the control difficulty in soil and water conservation measures, and put forward to design three principles of the soil and water conservation measures.从降雨径流污染特点、径流过程、土壤侵蚀过程和泥沙传输过程,说明水土流失是一种严重的降雨径流污染形式,分析讨论了水土保持措施对降雨污染控制的难度,提出了水土保持措施设计的3条原则。
2.This article is a comment on the rainfall runoff pollution research in recent years, and it is a summary of Chinese and abroad researchers from Rainfall runoff pollution sources, style, reaearch techinques and methods, mechanism, management measures and control techniques.降雨径流污染是种最重要的非点源污染类型,由于其污染发生的随机性及污染物排放量的不确定性,越来越引起世界各国政府的重视,全球环保工作者已投入大量的人力物力对径流污染开展了多种途径的研究。
英文短句/例句
1.Transport and Sources of Runoff Pollution from Urban Area with Combined Sewer System雨、污合流制城区降雨径流污染的迁移转化过程与来源研究
2.Pollution Processes and Management Researches on Urban Rainfall Runoff in Shanghai;上海城市降雨径流污染过程及管理措施研究
3.The Study on the Rainfall Runoff Pollution Process and Prevention Measure in Nanchang Urban;南昌市城区降雨径流污染过程与防治措施研究
4.Effect of Antecedent Dry Period on Water Quality of Urban Storm Runoff Pollution前期晴天时间对城市降雨径流污染水质的影响
5.Reduction effect of sunken green space on urban rainfall-runoff pollution下凹式绿地对城市降雨径流污染的削减效应
6.Characterization of storm-water pollution in urban tourist attractions--A case study in Wuhan Zoo城市旅游区降雨径流污染特征——以武汉动物园为例
7.Pollution Processes and Management Researches on Urban Rainfall Runoff in Nanchang University Qianhu Campus;南昌大学前湖校区降雨径流污染特征及控制管理措施
8.The Study of Urban Stormwater Runoff Pollution Characteristics and Uncertainties of Data Collection in an Urban Lawn Catchment城市绿地降雨径流污染特征及监测数据的不确定性研究
9.Comparative Study on Characteristics of Urban Rainfall Runoff from Two Urban Lawn Catchments in Macau and Xiamen城市绿地降雨径流污染特征对比研究:以澳门与厦门为例
10.First flush effect of urban storm water runoff pollution on implications for BMPs selection城市降雨径流污染初始冲刷效应对BMPs选择的启示
11.Local sensitivity analysis for pollution simulation of urban rainfall-runoff城市降雨径流污染模拟的水质参数局部灵敏度分析
12.APPROACH TO THE MODEL OF LONG PERIOD POLLUTION LOAD OF URBAN RUNOFF城市降雨径流长期污染负荷模型的探讨
13.Simulation and Prediction Research on Distributed Urban Non-point Source Pollution of Rainfall-Runoff;分布式城市降雨径流面源污染模拟及预测研究
14.Preliminary Study on Control of Runoff Phosphorus by Infiltration Tank;介质渗滤池控制降雨径流磷污染的初步研究
15.Roles of urban lawn system in controlling rainfall-induced runoff nitrogen pollution草坪系统对城市降雨初期径流氮污染控制作用
16.Transport Processes and Environmental Effects of Pollutants in Urban Surface Dust and Rainfall-Runoff System;城市地表灰尘—降雨径流系统污染物迁移过程与环境效应
17.Study on the Characteristics of Phosphorus Pollution during Precipitation Runoff Process in the Second Water Drinking Source of Fuzhou Shanzi Reservoir;福州第二水源山仔水库降雨径流磷污染规律研究
18.Experimental Study on Rainfall-Runoff Pollutant Reduction by Urban Green Space城市绿地削减降雨地表径流污染效应的试验研究
相关短句/例句
farmland precipitation runoff nonpoint pollution model农田降雨径流污染模型
3)urban storm water runoff pollution城市降雨径流污染
1.First flush effect of urban storm water runoff pollution on implications for BMPs selection城市降雨径流污染初始冲刷效应对BMPs选择的启示
4)stormwater pollution暴雨径流污染
1.Application of eco-concrete for controlling stormwater pollution from urban sloping-land;利用生态混凝土控制城市坡面暴雨径流污染试验研究
5)stormwater pollutants雨水径流污染
1.Prediction of stormwater pollutants on road of urban Zhenjiang;镇江城市道路雨水径流污染预测
6)rainfall pollution降雨污染
延伸阅读
降雨径流相关图降雨径流相关图rainfall-runoff correlation curve 二象限内各曲线代表季节影响,当前期影响雨量大,土壤接近饱和时,其影响逐渐减小,故曲线簇向上收缩;盛夏7、8月份气温高,蒸散发大、产流小,故曲线偏于最左方。第三象限为降雨历时,它考虑了入渗率和土壤含水t对流域补给的影响。第四象限为降雨量和径流量,反映降雨量对产流量最直接的影响,降雨量曲线簇的间距上宽下窄,它是各参数的综合反映。‘五变数相关图综合了产流的多种特性,但建图繁锁,要通过反复试错调整。建立任何参数的降雨径流相关图时,要有足够的实测点据,才能反映降雨特征和流域特征的经验统计关系;对于偏离关系线很大的点据,应着重分析其原因,不要任意舍弃,以备预报时参考。降雨径流相关图方法简便直观,又有一定的精度,为实际预报广泛应用。(郭迪辉)1 iangyu lingliu xiangguantu降雨径流相关图(rainfall.runoff eorre-lation eurve)为了计算产流量,根据流域平均降雨量及相应的地面径流量,加入主要影响因素为参数所建立的相关图,常考虑的主要因素有前期影响雨量Pa、季节M(以月份表示)、降雨历时T(或雨强川等。按流域情况选用不同的参数,建立各种相关图。例如图1系前期影响雨量为参数的三变数相关图。关系降雨不均匀的影响,可引入产流区概念。产流区指一次降雨能产生径流的地区,以雨量等于初损值的等雨深线为边界,小于初损的地区都不产流。常用降雨分布系数作参数建立如图3形式的相关图。图中的降雨︵日日)酬形担囚瑞忆︵已日︶\酬庭世因明礼//尹 (ujuJ︶喇暖盘地面径流量(mm)图l三变数相关图图3分布系数相关图量、前期影响雨量、地面径流量均为产流区上的平均值。分布系数以降雨量大于某定值的面积与产流地区面积的百分比表示,当降雨集中在较小地面时,损失量小,径流量大;反之,当降雨均匀且分布面广,损失量大,径流量小。所以在其他因素相同时,分布系数与径流量成反比关系。图4为常见的五变数相关图。第︵已已︺画僵侈欲县侣线的下部曲度大,上部逐渐趋于直线。 当Pa=0时,曲线上部向下的延长线,在纵轴的截距可粗略定为最大损失值几。它包括前期影响雨量、初损值及初损后的稳定下渗部分,因此曲线簇偏于45。线的左侧。相关图还显示了在同一前期影响雨量情况下,降雨量愈大,地面径流量愈大,径流系数也愈大的普遍规律。当流域的产流受雨强影响显著时,可再加入降雨历时作参数,建立四变数相关图,如图2所示。在同一降雨量及前期雨量情况下,降雨历时愈长,损失量也愈大,地面径流量愈小。对于较大流域面积图一雾五变数相关图图艺四变数相关图