border irrigation

The research object is tree pipe network.

本文以树状灌溉管网为研究对象,在总结国内外管网优化研究和最优化技术成果的基础上,针对目前研究中存在的问题与不足,采取理论研究、计算机模拟计算和实例分析相结合的方法,应用遗传算法最优化理论和图论知识,以投资最小为目标,对树状管网布置与管径同步优化遗传算法整数编码方法和不同管网布置下水流路径自动识别和压力、流速等约束条件自动计算方法进行了研究,建立了基于整数遗传算法的树状管网布置与管径同步优化模型。

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。

Research on Two-Stage Optimal Model and Algorithm of Tree Irrigation Pipe Network;

树状灌溉管网两级优化模型和算法研究

Research on Simultaneous Optimal Model and Algorithm of Tree Irrigation Pipe Network

树状灌溉管网布置与管径同步优化模型和算法研究

Study on Optimal Design Model of Pipe-irrigation Network;

管道灌溉管网工程优化规划模型研究

Irrigation Delivery and Distribution Pipe Network Optimization Research Based on GIS;

基于GIS的灌溉输配水管网优化研究

Optimal Design of the Pipe-irrigation Based on Pipe Diameter

基于管径的管道输水灌溉管网优化设计

China s Irrigation Management and Participatory Management;

中国灌溉管理与用水户参与灌溉管理

The Present Situation of and Suggestions on the Construction of Experimental Irrigation Stations (Networks) in Shanxi Province

山西省灌溉试验站网建设的现状与建议

Water-saving irrigation management status in quo and modes;

节水灌溉发展现状与管理模式研究综述

The region is flat and dry requiring a large irrigation network to provide water to its citrus grooves.

该地区平坦而干燥，需要很大的灌溉网给该地区的柑桔树林供水。

Participatory irrigation management and China s irrigation management system reform;

参与式灌溉管理与我国灌溉管理体制改革

Upland Agricultural Soil Irrigation and Need Water Management Decision Making Support System on Internet;

internet网上旱地农业土壤灌溉和需水管理决策支持系统

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

We have to care for and nurture the plant first.

我们必须先要照顾灌溉树木。

Gravity irrigation can increase fruit trees' production volume.

利用自流灌溉可提高果树的产量。

Ancient tanks nourish them.

古老的水池里的水灌溉着这些树木。

Study on Water Requirment and Regulated DeficitIrrigation Patterns of Pear-Jujube Tree;

梨枣树耗水规律与调亏灌溉模式研究

Employing both of construction and management to do well in water-efficient irrigation in irrigated area;

建管并举 做好灌区灌溉节水工作

Derrick and I have been laying out the system of irrigating ditches.

德里克跟我在一起修建那个灌溉网。