irrigationreservoir

Thispaperexplainsthequestionsweshouldpayattentiontowhenwechoosethetypicalyearsin irrigationreservoir’sdesign :notonlytheyearlyandirrigatedperiod’smeasuredrun offandempiricfre quencyneedstoapproachthedesignvalue ,butalsothedistributedprocessofrunoffneedstomatchthede signguaranteedrate .

通过分析 ,说明了灌溉水库设计时径流典型年选择中需注意的问题 :年、灌溉期径流实测值及经验频率要与设计值相近 ,同时径流的分配过程也要与设计保证率相匹配 ,还得出了不同调节性能不同保证率典型年法兴利调节计算中年内亏水的处理方法 ,以及不同调节性能水库设计库容的变化规律 ,对工程设计有一定的参考价值。

Considering the current status of irrigation and drainage systems in China,the W.

结合我国灌溉排水系统的实际情况对该系统进行了改造,并在广西桂林开展了试验研究。

Elementary reflection is that the effect of the well water irrigation and reclaimed water irrigation to the heavy metals accumulation in plant is lest.

通过对邯郸市5种水质灌区的作物中重金属含量测定,结果发现:中水灌溉和井水灌溉对重金属在作物中积累影响最小,无论何种水质灌溉,4种重金属在作物中积累趋势为Zn>Pb>Cu>Cd,分布趋势基本为根大于茎和籽粒,作物体内铅和镉含量超标。

Based on the experiment studies,the study on water and solute transport in sandy soil under reclaimed water irrigation was made,The result can give some reference for the effect on soil solute transport and soil environment under micro-contaminated water irrigation.

以宁夏回族自治区大武口市森林公园的含砾砂土为研究对象,通过室内试验,对中水灌溉条件下砂砾质土壤在不同灌水量、多次连续灌水、降雨淋洗等不同来水条件下水分、污染物运移的规律进行了初步的研究,为微污染水用于绿化灌溉对砂砾质土壤中污染物运移及累积的研究提供科学依据。

Effects of effluent irrigation on the variation of chemical element concentrations of soil extractions under field conditions;

污水灌溉对土壤浸提液元素浓度变化影响的田间试验研究

This paper analysed heavy metal content in soil samples of different depth from the eastern,analyzed the relation between the concentration change of heavy metals in soil,provided the scientific evidences for effluent irrigation,solving the problems of water in effluent irrigation areas and environmental impact assessment.

通过对某污灌区土壤中重金属的测试,分析了不同土层剖面深度土壤样品中重金属Cr、Cu、Cd、Pb元素含量,揭示了重金属在垂直方向上的浓度梯度变化趋势与土壤性质的内在联系,为指导污水灌溉,解决污灌区缺水的现状,以及开展环境影响评价工作提供了科学依据。

We analyzed and evaluated contents of several heavy metals(Cr,,Cu,Cd,Pb)in soil samples at different depths collected from eastern Inner Mongolia receiving effluent irrigation.

结果表明,随着土层加深重金属含量减少,经过十几年的污水灌溉,当地的地下水目前没有受到污染,这说明重金属在土壤中的迁移具有随着土层厚度增加而减弱的趋势。

Nitrogen wastewater irrigation study and its contamination risk analysis;

含氮污水灌溉实验研究及污染风险分析

Diary effluent is typically rich in nitrogen and phosphorus, and wastewater irrigation can reduce fertilizing costs and slacken contamination.

合理的灌溉指标和方法,是污水灌溉安全高效进行的主要保证。

Abstract The impact of wastewater in Shawan Wastewater Pool in the refinery of Dushanzi Petrochemical Company on surrounding environment and the impact of wastewater irrigation on soil,environment and vegeta- tion are analyzed,which provides important information on the re-utilization of treated wastewater from petro- chemical plants.

针对独山子石化分公司炼油厂沙湾污水库储水对周围环境及利用污水库污水灌溉对土壤环境和植被影响进行分析。

The Minimum Abandoned Water Modle of Irrigation Reservoir Beased on Real-time Forecasting;

基于实时预报的灌溉水库最小弃水模型

an irrigation scheme with dams, reservoirs, and channels.

有水坝、水库和水渠的灌溉系统

Hour the Method Calculation Reservoir Paddy Field in the Garden an Irrigation System Through the Years;

时历年法计算花园水库水田灌区灌溉制度

A new reservoir has been built to water 80 percent of the farmland.

新建了一座水库，使80％的农田得以灌溉。

There the irrigation canal links up with the reservoir.

这条灌溉渠在那儿连接着水库。

Problems in collection of irrigation water fee of large-sized and medium-sized reservoirs in Guangdong Province;

广东省大中型水库灌溉水费征收存在问题分析

Only when a reservoir is built here,can we solve our irrigation problem.

除非在这里修个水库，才能解决灌溉问题。

Yield and physico-chemical items in Aloe vera under seawater irrigation

海水灌溉下库拉索芦荟产量及其理化指标变化

There the irrigation canal links up with the reservoir which is very important to the villagers.

这条灌溉渠道在那儿与水库连接起来，水库对村民们很重要。

Effect Evaluation and Water Saving Mode Research on Bank-Well Irrigation Region in Ningxia Southern Mountainous Region;

宁夏南部山区库井灌区灌溉效果评价及节水模式研究

China s Irrigation Management and Participatory Management;

中国灌溉管理与用水户参与灌溉管理

The most nearby source of water for irrigation may be the ground water reservoir underneath.

灌溉用的最近水源，可能就是地面底下的地下水水库。

a ditch to carry extra irrigation water

排出剩余灌溉水的水沟

To these were added 23 storage ponds and a reservoir able to irrigate 10000 mu of land.

此外还增添23个畜水池和一座水库，能灌溉1万亩土地。

The system consists of a reservoir for overgcar storage, controllable irrigation gate and network of rivers.

系统由多年调节水库、控灌溉水闸和渠网河系组成。

A new reservoir has been built to water 80 per cent of the farmland.

新修了一座水库，使百分之八十的农民都得到灌溉。

coefficient of recharge from irrigation

灌溉水入渗补给系数

irrigate with water from a sluice.

利用开闸放水来灌溉。