Land preparation for basin irrigation is accomplished by forming a narrow ridge between 15 and 50 cm high on all sides of each area to be flooded.
格田淹灌的田间准备是在每一个灌溉田块周围形成15—50厘米高的窄田埂。
The grain region of the Hai River Basin relies on groundwater for 70pc of irrigation.
海河流域的产粮区，地下水占了灌溉用水的70%。
An expansive biological pond serves as a basin collecting rainwater and surface water run-off for landscape irrigation.
一个广阔的生物池塘作为收集雨水和地表水径流的景观灌溉流域。
Taking Urumqi River Basin as a test region, this paper presents the building principles and approaches of multi-objective grey decision models for land irrigation system in the basin.
本文以乌鲁木齐河流域为试验区，介绍了干旱区流域土地灌溉系统的多目标灰色决策模型的构造原理和方法。
Based on the data of tarim river basin this paper combines experiential and academic methods to calculate the irrigation quota of representative crops and develops relevant calculation system.
摘要利用塔里木河流域相关数据，采用经验与理论相结合的方法计算研究区代表作物的灌溉定额，并开发相应的计算系统。
This paper presents a mathematical model which involves only four parameters to simulate the water movement and balance of surface and groundwater in a basin or an irrigation area.
本文提出一个仅含四个参数的数学模型来模拟一个流域或泄区的地面水和地下水的运动及水量平衡情势。
Based on the data of Tarim River basin, this paper combines experiential and academic methods to calculate the irrigation quota of representative crops, and develops relevant calculation system.
利用塔里木河流域相关数据，采用经验与理论相结合的方法计算研究区代表作物的灌溉定额，并开发相应的计算系统。
Evaluation of irrigation water consumption is the basal work for hydrological simulation, water resources assessment, irrigation planning, and irrigation water management in a basin.
农业灌溉耗水研究是流域水文模拟与水资源评价、灌区规划与灌溉水管理的基础研究工作。
The main function of quasi-basin management unit is to carry out unified management of water affairs in the Dujiangyan Irrigation District.
其准流域管理机构的主要职能，就是对都江堰灌区的涉水事务实行统一管理。
The irrigation water demand accounts for over 60 percent of the total water demand in the Huai River Basin.
淮河流域农业灌溉用水量占总用水量的60%以上。
The Yelqiang River basin is located in southwest of Xinjiang. There are 7370 thousand Mu irrigation area.
叶河流域位于新疆西南部，流域现状灌溉面积737万亩，是新疆最大的灌溉绿洲，也是全国第四大灌区。
The Yelqiang River basin is located in southwest of Xinjiang. There are 7370 thousand Mu irrigation area.
叶河流域位于新疆西南部，流域现状灌溉面积737万亩，是新疆最大的灌溉绿洲，也是全国第四大灌区。
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