暗管排水

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 .

宁夏银北灌区暗管排水技术应用与工程效果监测

Application of Closed Drainage Technique of North Ningxia Yinchuan Irrigation Area and Monitoring of Drainage Project Effects

Hooghoudt公式在暗管排水设计中的计算程序及应用

Computer program and used of HOOGHOUDT Formular in the design of pipe drainage project

盐渍土地区暗管排水效应试验研究

An Experimental Study of Pipe Drainage Effect in Saline Soil Area

国内外暗管排水的发展现状与动态

The Status and Developments of Subsurface Pipe Drainage at Home and Abroad

稻田暗管排水论农村视野中的法律

Underdrainage of Paddy Field Law in Rural Field of Vision

稻田暗管排水武汉地区早熟中稻田释放甲烷的研究

Underdrainage of Paddy Field EMANATION OF METHANE FROM PADDY FIELD

暗管排水在干旱地区的应用

Application of Subsurface Pipe Drainage in Drought - prone Region

暗管排水条件下土壤特性和作物产量的空间变异性分析

Analysis of spatial variability of soil characteristics and crop yield under subsurface drainage

暗管排水改善水稻土通透性的探讨

Studies on the effect of the tile drainage on the permeability of paddy soils

滨海盐土地区暗管排水系统布置模式的研究

Research on the arrange mode of underground pipe drainage system in saline soil Coastland

暗管排水改良滨海盐土的效果及其适宜条件

Effects and condition of the underground drainage for improving saline soil of coastal region

淹灌稻田的暗管排水中氮素流失的试验研究

Experimental Study of Leaching Losses of Nitrogen in Effluent from Drained Paddy Rice Field

暗管排水流量组成分析灌区暗管排水系统优化设计

Discharge Combination Analysis of Subsurface Drain Pipe System

暗管排水改良滨海盐土及其效果分析

The Effect Analysis of Underground Pipe Drains for Reclamation of Saline Soil in the Coastal Region

国外大型暗管排水工程的施工测量及其管理

Construction survey and it 's management of large foreign projects of drainage with sub surface pipe

暗管排水对滨海新垦区土壤盐分动态的影响及脱盐效果

Effects of Subsurface Drainage on Soil Salt Dynamics and Salinity Reduction in New Coastal Reclamation Zone

农田塑料暗管排水设滤冲淤技术

Studies on Techniques of draining water and washing sludge from underground plastic pipe and its filtration control

暗管排水流量组成分析黄土塬区排水效益的计算方法

Discharge Combination Analysis of Subsurface Drain Pipe System ON THE ANALYSIS OF DRAINGE BENEFIT IN LOESS PLATEAU AREA

稻田暗管排水多效唑在稻田环境中的动态研究

Underdrainage of Paddy Field

新疆内陆干旱重盐碱地区暗管排水技术的应用

Application of Subsurface Drains in the Inland and Arid and Heavy Saline Area of the Xinjiang Uygur Autonomous Region

暗管排水可以很好的控制排除农田地下水和土壤含水量，提高土地利用率。

Pipe drainage system has big control of excluding agricultural groundwater and soil moisture and raise the utilization of land area .

作者在上海五四农场沿海滩涂垦区进行了为期两年的田间试验，对暗管排水条件下土壤盐分动态及脱盐效果作了监测分析和研究。

Wo-year field experiments were conducted in a coastal reclamation zone of Shanghai Wushi Farm , monitoring soil salt dynamics under subsurface drainage .

该文阐述了滨海咸酸稻田暗管排水和明沟排水试验的概况。

This paper presents some results of the underground pipe and open channel drainage experiments of the saline and acid rice field in the coast area .

以明沟排水为对照，论述了内陆干旱重盐碱区暗管排水在排水排盐、控制地下水位、提高土壤脱盐效果及提高作物产量等方面的优越性。

Subsurface pipe drainage in drought-prone region is superior to surface drainage in draining off water and salt , controlling ground water-level , and increasing crop output , etc.

暗管排水流量组成分析优化运行的目标，是根据不同泵站、各泵装置之间的运行特性和水雨情对排水流量的要求，通过对流量的最优分配，达到效益最好的目的。

Discharge Combination Analysis of Subsurface Drain Pipe System The optimization goal is to get the best benefits through the optimization allotment of total flow to different pumping station .

通过在以色列的大田试验，分析了劣质水灌溉对浅埋地下水位条件下土壤盐碱动态和作物产量的影响。试验在安装有暗管排水系统的试验田中进行。

The influence of marginal water irrigation on the dynamic balance of soil salinity and sodicity , as well as crop yield under shallow groundwater table , was investigated .

试验证明：暗管排水给农作物生长创造了适宜的水分环境，土壤脱盐率达61.9%～63.2%，棉花增产幅度达14.9%～28.9%。

It is shown from experiments that pipe drainage bring appropriate moisture environment to crops and the desalination rate of soil reaches among 61.9 % and 63.2 % , the increasing cotton production range is from 14.9 % to 28.9 % .

为了制定符合实际的农田排水规划实施方案，可从土壤类型、土壤承载力、降雨后地表积水状况、土壤透水性和地下水位等对规划单元内的农田是否需要暗管排水作出判断。

In order to make out an implemental schedule for farmland drainage , whether drainage by conduit is essential for farmland is judged by soil type , strength of soil bearing load , water deposition in land surface after raining , soil permeability and groundwater table etc.

其中暗管排水开发模式，较适合于砂性土壤，投入较少，生态价值较高，但是经济收益相对较低。

So they had remarkable economical societal and ecological values . The development model of ` underground pipe drainage ` was suitable for sand property soil . Though the earning per unit was relatively low , the input was also relatively low and required less investment .