灌溉面积

结果表明：近20年太湖流域GDP年均增长率为11.6%，城市化率提高31个百分点，工业总产值增长了13倍，作物播种面积和有效灌溉面积逐年减少；

The annual growth rate of GDP reached 11.6 % , the rate of urbanization increased 31 % and the gross output value of industry increased 13 times . However , the crop area and effectively irrigated area decreased year after year .

灌溉面积上生产粮食占80%。

The grain produced in irrigated area in the basin amounts to 80 % of the basin total .

截止1994年底，全流域灌溉面积已发展到731万hm2，因灌溉年净增产粮食120亿kg。

By the end of 1994 , the irrigation area had reached 7310 thousand ha and the grain output purely increased 12 billion kg per year for implementation of irrigation facilities in the total basin .

辽宁省共有大型灌区9处，有效灌溉面积35.7万hm2。传统的灌区水资源管理模式，使有限的水资源得不到合理的开发利用，造成了水资源的极大浪费。

There are 9 large-scale irrigation area in LiaoNing provine , effective irrigation area is 357,000 hm2 . The traditional irrigation management mode , make the limited water resource unable to get rational utilization , have caused the water resource wasting greatly .

Granger因果关系检验表明水利建设投资与农林牧渔业产值之间存在着双向因果关系，同时有效灌溉面积比值增长也是引起农村居民家庭人均纯收入增长的原因。

Granger causality tests show that there is a double-direction causality relationship between investment of conservancy construction and agricultural output value . And the increase of the rate of effective irrigated areas was also a reason for the increase of net income of the rural families .

目前，全国已建成大中型灌区5600多处，小型农村水利工程2000万处，全国有效灌溉面积发展到0.5667亿hm2，农田灌排工程体系已初具规模。

At present , more than 5600 large and medium-sized irrigations and 20 million small-scale Irrigation Works in Rural Areas have been built . The effective irrigation area is developing into billion 0.5667 hm2 . Farmland irrigation and drainage engineering system has already begun to take shape .

典型的有效灌溉面积预测方法简介

The Summary of Method of Typical Prediction on Effective Irrigation Area

利用动态规划法确定水库最优灌溉面积

Determination of Optimal Irrigation Area of A Reservoir by Dynamic Programming

有效灌溉面积、农用机械总动力等指标作为粮食综合生产能力影响因素。

As the index signes of the food comprehensive produce ability .

奇台绿洲地处我国内陆干旱区，其绿洲农业以开垦荒地、扩大灌溉面积来满足其自身发展的需要。

The oasis of Qitai belongs to the arid region in china .

进一步扩大灌溉面积，提高粮食产量；

Further extending irrigation area for increasing grain yield ;

我国未来粮食安全主要依靠提高粮食单位面积产量，灌溉面积、良种和化肥等传统的增产贡献因子的作用却越来越有限。

It is key approach of maintaining food security to improve per unit grain production .

而有效灌溉面积的增减又是强烈影响粮食产量增减的重要因素。

Food production is largely influenced by the increase or decrease in the effective irrigation area .

土地灌溉面积

Area of Irrigated land

加强农业基础设施建设，发展节水农业，提高有效灌溉面积率。

The enhancement agriculture infrastructure construction , the development saving water agriculture , enhances the effective irrigated area rate .

机电抽水站和实施节水灌溉面积以及节能技术改造；

In the mechanical and electrical pumping station and the implementation of water-saving irrigation area Well energy-saving technological transformation ;

国土卫星图象在灌溉面积调查、灌溉环境及水利条件分析评价中的应用

Application of China 's statellite Images in Investigation of Irrigation Area and Analysis and Evaluation of Irrigation Conditions and Environment

对水资源供需状况、有效灌溉面积两个支撑经济发展的关键因素进行了分析评价，提出了若干适宜指标。

The paper assesses the two key factors , supplying and demanding status of water resources , that supports economy development .

农田有效灌溉面积和粮食作物播种面积对粮食总产量有重要影响；

The effective irrigated area and the grain sown area are very important factors , which is more and more important ;

建成灌区5608处，有效灌溉面积2206万公顷。

In addition , 5,608 irrigation areas were completed , with the coverage of effectively irrigated farmland totaling 22.06 million hectares .

近年来我国污水灌溉面积发展较快，但由于盲目灌溉引起严重后果。

Irrigation with waste water is being developed rapidly in recent years , it brings serious aftereffects because of blindness using .

有效灌溉面积、实际机耕面积、化肥施用量、农村用电量和农机总动力等农业投入对粮食产量提高影响重大；

There was significant correlation between effective irrigated area , the amount of fertilizer applied , mechanical power and the grain yield .

干渠西起径阳，引径水向东，下游进人洛水，全长300余里，灌溉面积4万顷。

The canal } nras 150 kilometers linking the Jingshui River and the Luoshui River . It could irrigate 40000 hec-of farmlands .

结果显示：粮食单位面积产量、有效灌溉面积、农业机械化程度对粮食总产量的影响较大。

It was found that the yield , irrigated area and mechanization in agriculture were the most important factors affecting the production .

通过修建众多渠井工程，扩大了农田灌溉面积，农田水利事业有所发展。

The new project of numerous canals and wells extended the farmland irrigation area , and the water conservancy business was developed .

灌溉面积减少是近几年来农田水利工作中大家都很关注的问题，山西省水利厅组织有关单位，历时一年对52个万亩以上自流灌区进行了调查。

It is a much concerned question to the broad water conservancy workers that the acreage under irrigation has decreased in recent years .

通过模型的求解，可得出计算区的最佳灌溉面积、夏粮种植比以及水库的优化调度图。

According to the proposed model , we can obtain optimal irrigated area , scale of summer grain crops and scheduling diagrams of reservoir .

增加供水量、扩大灌溉面积；适当发展人工林草，加强抚育管理等。

And meanwhile , to increase supply water , enlarge irrigation area , develop reforestation in further and enhance upbringing management , and so on .

目前在中央山谷已经休耕的土地仅占加州灌溉面积的不到5%。

The land that has been left fallow now in the Central Valley is still less than 5 percent of all the irrigation acreage in California .

随着农业经济的迅速发展，灌溉面积和灌溉用水量不断增加，化肥使用量也不断增加。

With the rapid development of the agricultural sector in the economy , irrigation area , irrigation water consumption and chemical fertilizer consumption were increased continuously .