查询词典 irrigation

Irrigation and drainage ; irrigation district ; water metering ; water metering instrument ; irrigation management

农田水利；灌区量水；量水装置；灌溉管理

From analyzing the drip irrigation emitter types and choosing in experiment, the main conclusions are as follows: The best type of subsurface drip irrigation emitter is drip pipe. Under lower water press the stabilization discharge of orifice emitter in soil is three fifth of that in air, which can meet the request of subsurface drip irrigation.

通过对现有滴灌灌水器类型的分析及试验筛选，结果表明，内镶式滴灌管最适宜应用于地下滴灌，在低压运行时，孔口式滴头在土壤中稳定出流量为空气中的 3/ 5 ，基本可以满足地下滴灌的要求；在较高供水压力时，所选取的几种滴头基本上都可以用于地下滴灌。

Have a registered capital of 3,588,000 yuan, five million yuan in fixed assets, 6,000,000 yuan of liquidity, can provide you with tap water, farmland irrigation pipes, sprinkler irrigation, drip irrigation, long-distance pipe water supply projects and facilities.

拥有注册资金358.8万元，固定资产500万元，流动资金600万元，可为您提供自来水、农田管灌、喷灌、滴灌、远距离供水工程的管材及配套设施。

Film-furrow irrigation is a combination of techniques of film-mulching irrigation and furrow irrigation.

膜沟灌溉是与地膜覆盖技术相结合的沟灌，它将带有渗水孔的地膜敷贴在灌水沟内形成膜沟，灌溉时水在沟内的膜上流动，并通过膜孔渗入土壤。

40 And 40~50 cm in both infiltration irrigation and drip irrigation, and 0~30, 30~40 and 40~50 cm in furrow irrigation.

与渗灌和沟灌相比，长期使用滴灌灌溉有利于改善保护地土壤有机氮的品质。

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。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？