irrigation scheduling是什么意思

用法例句

Study on mechanism of groundwater pollution due to applying sewage water for irrigation condition;

污水灌溉对地下水污染的机理研究

Influence of landfill leachate irrigation on stress and antioxidant system of Vetiveria zizanioides.;

渗滤液灌溉对香根草胁迫及抗氧化系统的影响

Water Environmental Assessment in Jiangsu Project of the Second Period Project Which Using Would Bank Loans for Agriculture Irrigation;

利用世界银行贷款灌溉农业二期项目江苏省项目区水环境评价

In order to be an evidence for the reuse of water resources,investigated the fertility in soil which was irrigated by both of those two water resources and analysis it by fuzzy cluster.

以3种水源灌溉土壤并进行实验研究,对测定结果做模糊聚类分析,从而为我国水资源的回收利用提供科学依据。

The paper analysed transformation on hydrology factor after Ningxia Meili Paper Mill used its waste water to irrigate its fast-growing forestry,i.

分析了美利纸业速生林基地用废污水灌溉后引起附近水环境的变化,即随着灌溉水量增加,地下水位升高,湖泊湿地范围扩大;低位灌区与高阶地交接带产生土壤盐渍化。

This article investigates the influence of papermaking wastewater on reed growth and zoology environment by making experiment on potted plant and field irrigated by papermaking wastewater.

通过造纸尾水灌溉海涂苇田的盆栽实验和苇地田间实验,考察了造纸尾水对芦苇生长及生态环境的影响。

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。

Method for calculating safe baseline of regional farmland irrigation water and its application;

区域农田灌溉水数量安全底线测算方法及应用

Prediction of farmland irrigation water demand by grey GM(1,1) model;

基于灰色GM(1,1)模型的农田灌溉需水量预测

Discussion on present situation and reform ways of management mechanism for high efficient water use in farmland irrigation;

浅论农田灌溉高效用水管理机制的现状及改革途径

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。

On the long distance engineering analytic system of Nanyang agricultural irrigation;

南阳农业灌溉远程工程分析系统

Projection pursuit model for comprehensive evaluation of agricultural irrigation water quality;

农业灌溉水质评价的投影寻踪模型

The water quantity reused in agricultural irrigation will be limited in the near future,it isn't suitable for the situation of Chinese that the municipal sewage reuse for groundwater recharge.

结合实际的污水回用工程情况,根据目前处理工艺出水品质以及回用途径对水质要求的高低,把回用途径分为三大类,从技术经济、安全角度分析了主要的城市污水回用途径,认为近期城市污水回用途径主要应以水质要求较低而回用风险性小的工业冷却水、城市杂用和景观环境回用为主,回用于农业灌溉的水量在近期仍将有限,城市污水回灌地下水不适宜我国目前的国情。

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。