1)farmland drainage农田排水
1.Review of the researches on utilization of farmland drainage as resources;农田排水资源化利用的研究进展与展望
2.Based on experimental data from laboratory and field experiments, the relationship between rainfall recharge and groundwater level under farmland drainage is analyzed in this paper.以室内一维土柱试验和室外水平衡小区观测资料为基础 ,对农田排水条件下降雨入渗补给与地下水埋深关系进行了分析 ,根据降雨、蒸发与地下水埋深关系相似的规律 ,仿照国内外排水计算中较为广泛应用的阿维里扬诺夫经验公式的结构形式 ,建立起降雨入渗补给与地下水埋深的关系 ,并采用室内外试验资料对该关系式进行了验证。
3.The long-term practices showed that the farmland drainage could control waterlogging and saline-alkaline disasters,ameliorate the farming cultivation,enhance the agricultural productivity and promote national economic developme.长期的实践证明,农田排水在防御涝渍灾害和土壤盐碱化、改善田间耕作管理、增加农作物产量、促进国民经济发展等方面起着积极的作用。
英文短句/例句
1.Study on Farmland Drainage Indices and Drainage Control Based upon Crop;基于作物的农田排水指标及排水调控研究
2.Study on Farmland Drainage Index and Optimal Planning of Drainage Project;农田排水指标与排水工程最优规模的研究
3.Purification Efficiency of Agriculture Wastewater in Constructed Wetland;人工湿地对农田排水净化效果的研究
4.Study of laws of nitrogen losses from farmland drainage in Zhanghe Irrigation District漳河灌区农田排水氮素流失规律研究
5.Effect of Rainfall Runoff on Nitrogen and Phosphorus Loss in Farming Drainage Ditch降水对农田排水沟渠中氮磷流失的影响
6.Interception and Removal Effection of Agriculture Drainage Ditch on Nitrogen and Phosphorus;农田排水沟渠对流失氮、磷的截留和去除效应
7.Comparison on Removal of Nitrogen and Phosphorus form Hibernal Farmland Drainage by Three Kinds of Ditches三种类型农田排水沟渠氮磷拦截效果比较
8.Nitrogen and Phosphorus Control of Farmland Drainage for Constructed Wetland in Karst Region人工湿地对岩溶区农田排水氮磷污染的控制
9.Study on Phreatic Water Evaporation Affected by Crop Growth in Dry Inland Regions and Farm Drainage Calculation;干旱内陆区作物生长影响的潜水蒸发和农田排水计算研究
10.Further discussion on the calculation method of field drain spacing对蒸发影响下农田排水沟（管）间距计算方法的探讨
11.Modling Study of Nitrogen Losses Based on GIS in Yinnan Irrigation District;GIS支持下的银南灌区农田排水区氮流失模拟研究
12.Research on the Filtration System of Farmland Drainage Ditch Construction and the Embankment Material农田排水沟道渗滤系统构建及护砌材料试验研究
13.In drainage of agricultural lands, a filter or gravel envelope is used to prevent the entrance of fine sand and silt into the drains.在农田排水中常常采用砾石或过滤层来防止粉细砂和泥沙进入排水沟。
14.Investigation of Irrigated Water Qualities in Xinjiang Farmland and Discussion of Treatment Methods with It;新疆农田灌溉排水水质调查和其处理方法探讨
15.A Study on Salt Transport in Saline Soil Under Drainage Condition农田明渠排水条件下土壤水盐运移规律研究
16.A land drain is usually a pipe buried in farm land but it may also be an open channel.农田的排水系统通常是埋在农田中的管子，但也可以是明渠。
17.Analysis on the effect of controlled drainage and supplemental irrigation on crop yield and drainage农田控制排水与补充灌溉对作物产量和排水量影响的模拟分析
18.Study on the Irrigation and Drainage and Optimal Allocation of Water Resources for the North of Huaihe River in Anhui Province;安徽淮北地区农田排灌和水资源优化配置研究
相关短句/例句
agricultural drainage农田排水
1.Characteristics of agricultural drainage from Aksu river irrigation area阿克苏河灌区农田排水特征研究
3)cropland drainage农田排水
1.Based upon the practice of cropland drainage,the status and role of cropland drainage were briefly analyzed,the major forms of cropland drainage and the adaptability of different forms were outlined;five important aspects on cropland drainage in the current and future,and development tendency of cropland drainage technology in China hereafter were pointed out.联系国内外农田排水实践,简要分析了农田排水的地位与作用,总结了农田排水的主要形式以及各种形式的适应性;指出了当前和今后一个时期农田排水的五大方面和我国农田排水技术今后的发展方向。
4)drainage[英]['dre?n?d?][美]['dren?d?]农田排水
1.The resuIts showed that the output oforganic matter to water body through drainage water was lessthan input to agricuItural soils through irrigation water.６５ｋｇ／ｈａ·ａ，说明农田排水中有机物质对水系水质污染很小。
2.Experimental Study on Controlled Drainage in Paddy Fields of the Yinnan Irrigation District, China;控制排水根据作物对土壤水分的要求，通过在排水沟出口增加控制性建筑物，如堰等，适当减少排水量，以达到减少农田排水对地表水污染的目的。
5)farmland irrigation and drainage water农田排灌水
1.Stabilization pond-plant bed composite system treatment of farmland irrigation and drainage water.;农田排灌水的稳定塘-植物床复合系统处理
6)agricultural drain农田排水沟
延伸阅读
农田排水农田排水farmlanddrainage排除农田多余的地表水和地下水的技术措施。可改善作物生长条件，并用于防治土壤盐碱化和沼泽化。排除因降雨致影响作物正常生长的多余地表水称排涝。设计要求达到的排涝能力，称为设计排涝标准。设计排涝标准是指一定重现期的暴雨（中国一般采用5～10年一遇）在一定时间（如3日）内排除，使作物不致显著减产。排涝标准尚有其他表达形式。排除多余地下水、降低地下水位、减小耕作层土壤含水率使作物不致减产称为排渍。排渍标准常表示为某作物在某一生长期，地下水自地表回落至不使作物显著减产的水位的时间。如中国有些地区规定，在小麦受渍敏感期，要求72小时内地下水自地表下降60～100厘米。农田排水系统由田间排水网汇集多余的田间水量，通过干、支、斗3级沟道组成的输水沟系，或经蓄涝湖泊滞蓄后经排水闸或抽排站排入容泄区。田间排水主要有下列形式：①明沟（开敞式沟道）排水。其施工易、投资少，但占地多、交叉建筑物多，不利机械化耕作，边坡易坍塌，易生杂草，排渍效果不如暗管排水和竖井排水。②暗管排水。系在地面以下一定深度埋设渗水暗管（有塑料管、水泥制品管、砖瓦管、竹管等），或开挖暗沟后加盖土垡或预制顶盖并覆土。暗管排水不占地，利于机耕，但使用暗管时建筑材料用量多、投资大，使用暗沟时易淤堵。此外，以拖拉机为动力牵引鼠道犁挤压土壤形成无防护洞道（鼠道）进行排水称鼠道排水，亦属暗管排水。其投资小，施工方便，但使用寿命较短。③竖井排水，即布设井群抽汲地下水，适于透水性较好的土层，可较大幅度地调控地下水位，减少田间排水沟道，但需耗费能源。为了顺利和有效地进行农田排水需搞好管理工作，即健全组织机构，视需要对地下水位、排水流量和水质及容泄区状况等进行监测，维修养护工程设施，使其正常发挥作用。
