查询词典 overhead irrigation

Aimed at the increasing eco-environmental problems, including water shortage, water pollution, soil salinization, water loss and soil erosion, loss of function of the channel and river, biocenose degradation, etc, which severely infected the sustainable development for irrigation area, the main works in this paper are summarized as followed: constituting the measures of water resources shortages for developing agricultural water-saving technologies and adjusting agricultural structures; constructing the water polluting control and purification system of Mushroom lake: source control and decrement-sewage collection and treatment - channel ecological interception - wetland treatment -reservoir purification; putting forward the systematic projects for soil salinization and water loss and soil erosion of the integrated application of water conservancy agriculture and forestry.; constructing the ecological impervious channel model in west bank, from all of which theoretical bases and technical support for the eco-environmental rehabilitant in Manasi irrigation area were offered. All of these works were based on data collection, technical analysis, on-the-spot investigation, experimental research and technical development about Manasi irrigation area, etc.

通过对玛纳斯河灌区进行资料查阅收集、理论分析、现场勘察、试验研究和技术开发等途径，针对玛纳斯河灌区存在的水资源短缺、水体污染、土壤盐渍化、水土流失、沟渠河道功能缺失、生物群落退化等日益突出的严重影响灌区可持续发展的生态环境问题，制定了发展农业节水技术、调整农业结构的灌区水资源短缺的措施，构建了&源头控制减量-污水收集处理-引水调控-渠道生态截留-湿地生态处理-库区生态净化&的蘑菇湖水污染控制与净化系统；提出水利、农业、林业综合应用的灌区土壤盐渍化、水土流失问题的综合治理方案；构建了西岸大渠生态防渗型渠系模式，为玛纳斯河灌区生态环境修复建设提供了理论基础和技术支持。

Results show that the field water storage capacity in treatment of plowing with winter irrigation is higher than those of plowing without irrigation, plowing with spring irrigation and subsoiling (35—40cm)with win...

结果表明秋翻冬灌处理的储水能力分别高于秋翻不灌、秋翻春灌及深松冬灌3个处理。

Delineation result based on the improved ant clustering indicated that the study area could be partitioned into two irrigation management zones. Soil field capacity, saturation moisture content and permanent wilting point in Zone I were greater than those in Zone II, which indicated that soil in Zone I had stronger drought resistance than that in Zone II under the same climate conditions. Delineation of irrigation management zones could provide references and data support for site-specified irrigation management.

改进的蚁群聚类分区结果表明，研究区可划分成2个灌溉管理分区，I区土壤的田间持水率、饱和含水率和凋萎含水率均较II区大，表明在相同的气候条件下，I区的土壤耐旱能力较II区强，分区结果可以为精准灌溉的分区管理提供参考依据和数据支持。

DI is the most ideal irrigation indicator as it is very much influenced by soil water potential and less affected by meteorological factors. DI value of zero is probably the best irrigation threshold. MDS is strongly affected by meteorological factors and requires reference MDS under well-irrigated conditions. RT on the other hand is not significantly related with soil water potential. Therefore neither of these variables is suitable as irrigation index.

DI 受土壤水势影响产生变化的趋势明显并受气象因子影响较小，是最理想的灌溉控制指标，可将 DI =0作为灌溉控制临界值； MDS 受气象因子影响强烈，变异性较大，且需要充分灌溉条件下的 DI 作为参考， RT 与土壤水势的相关性不高，因此均不适合单独作为灌溉控制指标。

In this paper, based on the volume balance equation of water, adopt IPARM method to estimate the soil permeation parameters of Kostiakov-Lewis equation in furrow irrigation, according to a set of field furrow irrigation data to estimate the parameters, and utilizing WinSRFR1.1 software to simulate the water flow in furrow irrigation.

该文以水量平衡方程为基础，采用IPARM方法建立了沟灌Kostiakov-Lewis入渗方程中参数的估算方法，并根据一组田间实测沟灌资料对入渗参数进行了估算，利用WinSRFR1.1软件对沟灌水流运动进行了模拟。

In this paper, based on the water balance equation, infiltration parameters from advance and runoff model method was used to estimate the soil permeation parameters of Kostiakov-Lewis equation in furrow irrigation, according to a set of field furrow irrigation data to estimate the parameters, and utilizing WinSRFR1.1 software to simulate the water flow in furrow irrigation.

该文以水量平衡方程为基础，采用IPARM方法建立了沟灌Kostiakov-Lewis入渗方程中参数的估算方法，并根据一组田间实测沟灌资料对入渗参数进行了估算，利用WinSRFR1.1软件对沟灌水流运动进行了模拟。

The water quantity of furrow irrigation was half of subsurface irrigation and drip irrigation\'s every time; tomato was cultivated in annual spring, fertilization amount was same in different plots, annual test scheme and test methods were exactly same.

长期定位灌溉试验于1998年开始，灌溉控制上限和下限分别设定为土壤水吸力6.3KPa和40KPa，其中渗灌和滴灌处理一次灌水量为沟灌一次灌水量的1/2；每年春季栽培一茬番茄，各小区施肥量一致，每年的试验方案、试验方法完全相同。

As Director of the Site Engineering Services Team and a Principal at EDAW, Mr. Hurst is experienced in ef.cient irrigation and pumping system design, Xeriscape principles, water supply planning for small and intermediate sized projects, irrigation water audits, and long range irrigation demand and infrastructure planning for land development projects, and stormwater management and Best Management Practices for water quality enhancement.

Hurst先生是&场所工程服务队&的主管以及EDAW的主要负责人之一，他在灌溉与汲取系统设计、水储存原则、中小项目给水规划，土地开发项目的灌溉水审核、长距离灌溉需求和基础设施规划，以及以提高水质量为目的的暴风雨水管理和&最佳管理实践&方面具有丰富经验。

The article describes the principles of drip irrigation, drip irrigation system components, and the composition of the various components of drip irrigation system equipment performance and selection of equipment made a brief introduction.

本文主要介绍了滴灌的原理、滴灌系统的组成，并对组成滴灌系统设备的各个组件的性能和设备选型做了简单介绍。

The article describes the principles of drip irrigation, drip irrigation system components, and the composition of the various components of drip irrigation system equipment performance and selection of equipment made a brief introduction.

本文主要介绍了滴灌的原理、滴灌系统的组成，并对组成滴灌系统设备的各个组件

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。