灌区

本文研究的是基于网格GIS的大型灌区地理信息管理系统的集成框架技术。

What this text studied is the integrated frame technology of the large-scale geographical information management system of irrigated area based on net GIS .

黑河水源于祁连山，山区岩石风化后，地表径流和地下径流携带大量可溶性盐类（主要是NaHCO3和Na2CO3）向黑河灌区汇集，使得该片土地盐分含量不断增加，土壤理化性质遭到破坏。

The rock of the area weathered , the surface river and subterranean river gathered in the Heihe River irrigated area with large amount of solubile saline ( mainly NaHCO_3 and Na_2CO_3 ), making the proportion of saline of this area increasing steadily , and the soiled destroyed greatly .

宁夏银川灌区引进机械施工的暗管排水工程施工技术，开展了大面积的暗管排水工程建设。

The closed drainage technique of mechanical construction was introduced in North Ningxia Yinchuan Irrigation district .

灌区管理模型与GIS的集成及应用

Integration of Irrigation Management Model and GIS and Its Application

用改进的BP算法预报灌区地下水位

Forecast Groundwater Level in Irrigation District Based on Improved BP Algorithm

大型灌区陆地水循环模式的参数化方案：LWCMPSID

Parameterization scheme of land water-cycle model for large irrigation districts : LWCMPS_ID

RS技术在灌区管理决策方面的应用

Application of RS Technology in Decision-making of Irrigation District Management

基于BP神经网络的黄河下游引黄灌区引水量分析

Analyzing Water Diversion Demand For Irrigation Areas at Lower Reach of Yellow River with BP Neural Network Techniques

基于GIS的宁夏引黄灌区中低产田遥感调查

The remote sensing investigation of medium fertile and poor farmland by means of GIS in the irrigation area of Ningxia

长春市污灌区土壤&植物系统中Cd的污染与形态研究

Study on Cadmium Pollution and Its Forms Analysis of Soil-Vegetable System in Wastewater Irrigation Region in Changchun City

马家沟污灌区农作物受Pb，Cd，As污染概况与讨论

A Brief Introduction and Discussion of the crops Polluted by Pb , Cd , As in Majiagou District

基于B/S和J2EE结构的灌区用水管理决策支持系统研究

Study on the Water Management Decision Support System in Irrigation District Based on B / S and J2EE Structure

污灌区潮土Cu、As与Cd含量与距污染源距离呈线性相关。

The contents of Cu , As and Cd in the soil were in linear correlation with distance from the source of pollution .

虽然目前网格GIS技术已越来越多地应用于各个领域，但国内农业灌区领域的网格GIS并不多见。

Though the net GIS has already been applied to each field at present , but net GIS of the domestic agricultural irrigated area field is actually rare .

同时将SWAT模型嵌入宝鸡峡灌区信息化格网GIS系统。

At the same time , the SWAT model of implantation of Baoji Gorge Irrigation District Information Grid GIS system .

根据目前灌区灌溉管理存在的问题，将RS技术应用在灌溉管理决策中。

This paper applied RS technology in decision-making of irrigation management to settle the existing problem in irrigation management of irrigation district .

灌区明渠输水与PCCP管道输水方案比较

Comparison of open channel water conveyance and PCCP pipe water conveyance

U形渠道是灌区广泛推广的灌溉渠道，其具有占地面积少、水头损失小等特点。但U形渠道流速分布规律及其流量测量仍处于研究阶段。

U channel is extensively used in irrigated region , but velocity of flow distributing rule and flux measurement for U channel is being on research stage still .

该系统采用离散型控制系统（DCS），通过集中显示操作管理、控制相对分散来提高系统的可靠性，是一种目前较为先进的灌区管控综合集成系统。

Discrete control system is adopted and the system reliability is increased with centralized display and operating . It is an advanced irrigation automation system at present .

由于受到人类生产活动的强烈扰动，在两盆地主要城市的周边、矿区、部分河流沿岸、污灌区等局部地区显示有Hg、Cd、Pb的富集。

As strongly affected by the Human production activities , Hg , Cd and Pb concentrate in the city surroundings , the properties , some part of river banks , irrigating areas , etc.

分析了不同降雨频率下，灌区主要作物的需水量与需水规律，并采用降雨灰色灾变预测GM（1,1）模型间接地预测了作物需水量。

The crop water requirement and its rule on different frequency of rainfall are analyzed in the paper , and the crop water requirement is indirectly predicted by the Grey Disaster Model of rainfall .

2004年6月14、15日连续2d宁夏大部地区出现了强雷阵雨天气，引黄灌区局部地区遭受冰雹袭击。

A 2 day 's continuous severe thunderstorm occurred in most areas of Ningxia on June 14th and 15th , 2004 , part of the Yellow River irrigation region has been struck by hail .

应用结果表明，Palmer干旱指标可以更准确地评估灌区的干旱情况。

The result of application shows that the Palmer Drought Index can more exactly evaluate the drought condition of the irrigation district than the other indices .

通过选择性富集培养，从沈抚灌区石油污染土壤中分离到1株菲降解细菌L2，该菌株能以菲为唯一碳源和能源生长。

A phenanthrene-degrading strain L2 was isolated from oil-contaminated soil in Shenfu irrigation area by selective enrichment culture . The strain was able to grow on phenanthrene as a sole carbon and energy source for growth .

利用GPRS+WEB构建的分散式水文数据采集系统，为灌区GIS系统、灌溉决策支持等系统提供了大量实时依据，对提高节水效率，具有重要意义。

The decentralized hydrology information acquisition system is composed through using GPRS and WEB techniques , which can provide large quantity of real-time data for the GIS system and the irrigation decision support system of the irrigation district . It is very important for improving the water-saving efficiency .

对灌区计划用水、科学用水和节约水资源等工作造成了很大的影响，因此U形渠道测流技术是亟待解决的问题。

It seriously hindered the testing water amount in U channel of irrigated region , collecting the water rate . So , it is a practical problem of production urgently to be solved in vast irrigated region that the U channel examines the technology of flowing .

东部非污灌区浅层水NO-3-δ15N值变化在+9‰～+11‰，指示地下水NO-3来自动物粪便和生活污水；

Shallow groundwater in the eastern part in the non-sewage irrigation area had NO - 3 - δ 15N values ranging from + 9 ‰ to + 11 ‰, indicative of localized pollution by animal or sewage waste .

预测结果表明，在排水口下游5～10km范围内，黑龙江和松花江混合区域水质基本与本底接近，受纳水体对灌区排水有较大的稀释能力。

It shows that the water quality of the mixing area , 5-10km downstream of the effluent , is close to the background water quality , indicating that the receiving water bodies have strong capacities to dilute the pollutants from drainage .

黄土原灌区灌溉条件下超根层黄土中水盐运移试验成果分析表明：水分分布在埋深1.8m和7.8m附近具有2个明显的峰值带；

The outcome analysis on tests of water and salt transfer in ultra-root layer under irrigation conditions of loess table lands show that there are two obvious peak zones near the area where water distribution depth is 1.8 m and 7.8 m and ;

分析了神经网络的GN-BFGS学习算法的基本工作原理及其方法，并利用该方法建立了宁夏青铜峡灌区退水量预测模型。

This paper analyses the basic working principle and its method of GN-BFGS learning algorithm of neural network , on the basis of using this method , the model for prediction of drainage water volume in Qingtong Gorge Irrigation District of Ningxia Hui Autonomous Region is established .