灌溉定额

应用Penman-Monteith方程推算北京地区苜蓿的灌溉定额

Calculating alfalfa irrigation quota by FAO Penman - Monteith equation

土壤水资源量分析在确定作物灌溉定额中的具体应用

Application of Soil Water Resources Analysis in Determination of Irrigation Quota of Crops

油松和侧柏人工林适宜灌溉定额的研究

Study on Suitable Irrigation Norms of Pinus tabulaeformis and Platycladus orientalis Plantation

甘肃干旱半干旱地区的蒸散与灌溉定额

The Evapotranspiration and Irrigation Value of the Arid and Semi-Arid Area in Gansu

该文推算苜蓿灌溉定额的方法也可用于其它作物灌溉用水定额的估算。

The method could also be used to estimate other crop irrigation quota .

宁蒙灌区灌溉定额偏高成因及节水潜力分析

Reasons of high irrigation quota and potential of water-saving in Ning-Meng irrigation area

不同灌溉定额下土壤水分时空入渗规律研究

Study on Time-domain Infiltration Regulation of Soil Moisture Content under Different Irrigation Quotas

水稻的优化灌溉定额、耗水量与产量关系

The Relationship of Optimum Rice Irrigation-water Consumption-crop Yield

在相同的灌水周期下，随着灌溉定额的增加，土壤剖面平均含水量依次增大。

With same irrigation quota , soil moisture increased by shorting irrigation cycle time .

水源有限条件下作物合理灌溉定额的确定

Rational irrigation quota under limited water supply

干旱地区春小麦灌溉定额的研究

Experiment of Optimum Irrigation Norm for Spring Wheat Crop in the Arid of Gansu Province

干旱地区灌溉定额最优分配的动态模拟研究

Study on Dynamic Simulation of optimum distribution of irrigation quota of crop growing period in arid area

干旱缺水地区春小麦经济灌溉定额的确定

Determination of the Economic Irrigation Norm of the Spring Wheat in the Arid and Water shortage Regions

总的储水灌溉定额相同下，生育期灌水定额越高，土壤在一年内的蒸散量越大。

The same of sum storage irrigation , the growth period irrigation higher , greater of soil water evapotranspiration .

采用最小二乘法和线性规划法对蚕豆水分生产函数与灌溉定额进行了研究。

Broad bean ′ s water production function and irrigation quota were studied with least squares and linear programming method .

灌溉定额从中到高（2370~2610m3/hm2）。

The irrigation quota is from middle to high ( 2370 ~ 2610 m ~ 3 / hm ~ 2 ) .

最后，阐述应用需水量等值线图绘制净灌溉定额等值线图的方法，以便用该图进行灌溉区划和灌溉工程的规划、设计与管理；

Finally , the method for making isoline map of net irrigation water requirement using the isoline map of ET is presented .

塔里木盆地水资源紧缺，按经济效益最佳的灌溉定额进行节水灌溉，可有效地提高棉花水分利用效率。

Because the Tarim River Basin is lack of water resources , water saving economical irrigation can raise water use efficiency greatly .

结果表明，随着灌溉定额的增加，最优灌溉制度下的田间腾发量和冬小麦产量也相应增加，但其增加幅度却逐渐减小。

The simulation results show that both field evapotranspiration and crop yield increase with the irrigation quota , but with decreasing slopes .

土壤温度变幅与土层深度成指数关系，且灌溉定额对土壤温度变幅与土层深度之间的相关性具有一定的影响。

The relationship between soil temperature changed range and the soil depth were exponential and the relativity of them was influenced by the irrigation ration .

首先按照优化后的灌区作物种植结构及相应的灌溉定额，反推灌区灌溉引水量。

First , according to optimized structure of cropping pattern and corresponding irrigation water duties , the water diversion requirement of the irrigation district is calculated .

无论哪种种植方式，在最大供水量的范围之内，灌溉定额大，作物的产量水平就高。

In the most ration of water supplying , yield of crop was enhanced when irrigation ration was increased no matter what planting pattern was applied .

在棉花整个生育周期内，通过控制不同的灌水频率和灌溉定额，进行田间对比试验。

Through controls of the different irrigation quotas and different irrigation frequencies during the whole growth stages of cotton , the field contrast experiment is carried out .

累进制水价以0.12元.m-3为基价，以净灌溉定额作为用水基数。

The base price in the progressive water price system is 0.12 Yuan5m ~ ( - 3 ), and the net irrigation quota is the water consumption base .

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。

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 .

在当地灌溉定额为4500m3m3/hm2、灌水四次的灌溉制度经济效益最优。

In the region , the optimal economic benefit can be obtained if irrigation quota is 4 500 m ~ 3m ~ 3 / hm ~ 2 and irrigation at four times .

为保证饲草料地土壤水分的适时供给并获得稳产高产所确定的灌溉定额，灌水次数和灌水时间。

The irrigating water quota , number of irrigation and frequency of irrigation , which is sure to provide the water in time to the forage grass field and get highly stable yield .

节水经济灌溉定额不仅与棉花水分生产函数有关，而且与皮棉价格、单方水价格、生产要素不变费用及水费征收方式有关。

The irrigation norm for the highest benefits is related closely to water production function , cotton price , water charge , other production costs , and the way of collecting water charge .

例如：调整灌溉定额，改进灌溉技术；优化种植结构，推行节水灌溉制度；加强排水措施等等。

Such as modifying irrigation norms and improving irrigation technique , optimizing plant structure and implementing water-saving irrigation system , strengthening the water conservancy project measures and agro-ecological measures , and so on .

应用该模型可计算出不同水文年地下水开采量及各作物灌溉定额，进而计算灌溉制度，可广泛应用于纯井灌区的井灌工程的规划设计。

With the model , ground water exploitation amount and irrigation scheduling in different hydrologic year can be determined . The model is also useful in planning and designing irrigation project in well irrigation area .