灌溉的

Among her serial works named Hero,one depicts like this:on a desolate ground only with root remained,a plane which was supposed to enter into the air lane stayed on a root,a self-assured young pioneer with a hat receiving alien messages holds a spade but could not find a green land to irrigate,only leaving the red scarf fluttering…..

在她的命名为hero的系列作品里边，有一件作品是这样的：在一片只剩下树根的荒漠的土地上，一架本该进入航道的飞机却在某个树根上搁浅，一位踌躇满志头戴"接收外星人信号"帽子的"少先队员"拿住一把铁锹却找不到可以灌溉的绿地。

Field irrigation experiment of different salt concentration is conducted for wheat,maize and sunflower with normal quota and leaching quota in this paper,and study on crop growth,accumulation law of dry matter above ground and crop yield of 3 crops.

在田间试验条件下，采用正常灌溉定额和淋洗灌溉定额2种灌溉水平，对小麦、玉米、葵花3种作物进行了不同灌溉水矿化度处理的灌溉试验，对3种作物的生长过程、地上部干物质积累规律、作物产量等进行了研究。

The results showed that the "intermit irrigation" is an ideal irrigation technique.

文摘：对低洼地种稻增产灌溉技术进行了3种对比试验研究，结果表明"间歇灌溉"是理想的灌溉技术，同时指出了应用间歇灌溉技术时应注意的问题。

It was two hours, owing to sundry wrong turnings, ere she found herself on a summit commanding the long-sought-for vale, the Valley of the Great Dairies, the valley in which milk and butter grew to rankness, and were produced more profusely, if less delicately, than at her home - the verdant plain so well watered by the river Var or Froom.

由于拐弯时多走了一些冤枉路，她走了两个小时才走到一个山顶上，望见她渴望已久的沟谷：大奶牛场的沟谷。在那个沟谷里，牛奶和黄油的增长十分迅速，虽然不如她家里的牛奶和黄油味美，但它们的生产要远比瓦尔河或佛卢姆河所灌溉的那块翠绿草原上生产的牛奶和黄油丰富。

It was two hours, owing to sundry wrong turnings, ere she found herself on a summit commanding the long-sought-for vale, the Valley of the Great Dairies, the valley in which milk butter grew to rankness, were produced more profusely, if less delicately, than at her home - the verdant plain so well watered by the river Var or Froom.

由于 www.ddd§tt.com 拐弯时多走了一些8 tt t8.com 冤枉路，她走了两个小时才走到一个山顶上，望见她渴望已久的沟谷：大奶牛场的沟谷。在那个沟谷里，牛奶和黄油的增长十分迅速，虽然不如她家里的牛奶和黄油味美，但它们 www.Dddtt.com 的生产要远比瓦尔河或佛卢姆河所灌溉的那块翠绿草原上生产的牛奶和黄油丰富。

The results show that because of saline water blending irrigation, the soil salt is cumulated, salification degree has positive correlation with irrigation water mineralization, soil sodium adsorption ratio increase and its impacted depths are different with mineralization degrees.

结果表明，微咸水灌溉后土壤积盐程度与灌溉水矿化度呈正相关；微咸水灌溉会使土壤饱和浸提液的SAR升高，且影响深度因灌溉水矿化度而异。

Thereinto, drip irrigation is divided into three treatments of different ration. Tectorial and untectorial treatment are adopted to semifixation spray irrigation. At the same time, seepage-preventing trial is done. By study of one growth season, it shows that the indexes, Comparing with flood irrigation, water-saving technique has the effect of increasing production and harvest, economizing water, energy sources and field, saving work, time and power. It has best significance difference among unit yield of using different irrigation ways. The highest yield is in irrigation treatment of 80% field moisture capacity, it is secondary in seepage-preventing ditch irrigation treatment and is the lowest in spray irrigation treatment. Drip irrigation increase yield 4.0%~25.9%,Seepage-preventing ditch irrigation increase yield 17.5%, and spray irrigation decrease yield 22.4～37.8% comparing with flood irrigation. The effect to yield is obvious in drip irrigation treatment of different irrigation ration.

不同灌溉方式间单位产量存在显著差异，80％田间持水量灌溉处理产量最高，防渗渠畦灌次之，喷灌的产量最低；与土渠漫灌单位产量相比，滴灌增产4.0％～25.9％；防渗渠畦灌增产17.5％；喷灌产量下降22.4％～37.8％；滴灌试验中不同灌溉处理对产量的影响显著，随着灌溉定额的减少，产量随之下降，主要原因是60％田间持水量的灌溉处理限制了棉株的生长发育，降低了产量；不同灌溉方式的灌溉定额与绿洲内土渠漫灌平均灌溉定额相比，滴灌节水47.7％～54.4％，防渗渠畦灌节水38.56％，喷灌节水58.2％；滴灌、喷灌及防渗渠畦灌与土渠漫灌相比分别省工16.2％、25.1％和3.6％；滴灌和喷灌较防渗渠畦和土渠漫灌节地约5％～7％；从净收益来看，防渗渠畦灌较土渠漫灌经济效益提高了34.2％，滴灌提高了9.8％～48.2％，喷灌则下降了23.8％和44.7％；而且采用不同灌溉方式种植棉花，对于成铃率、衣指、衣分、纤维长度、产量等指标，滴灌要优于喷灌和防渗渠畦灌；而成铃数、种子数、铃重、籽指等指标，滴灌、喷灌均小于防渗渠畦灌。

In 1 irrigation time and 2 irrigation times treatments, soil salt content decreased by 11.7%, and soil salt content increased by 12.6% in 3-4 irrigation times treatments. 2 After irrigation, the mean reduction of soil bulk density was 6.5%, and the mean increment of soil total porosity was 18.1%. With the irrigation frequency increasing, soil density was decreased and soil total porosity was increased. 3 Soil infiltration course of reed field irrigated by wastewater fitted Horton infiltration model well. After wastewater irrigation, the first infiltration rate decreased, but the stable infiltration rate promoted with the wastewater irrigation frequency increasing. 4 Soil water-holding capacity was increased by wastewater irrigation. The maximum water-holding capacity in capillary was 90.15 mm in the treatment of irrigation 3 irrigations, and the maximum water-holding capacity in non-capillary was 4.15 mm in treatment of 4 irrigations.

废水灌溉后，土壤pH均值降低6.0%；废水灌溉1～2次，土壤含盐率降低11.7%，废水灌溉3～4次后，增壤含盐率增加12.6%。2）废水灌溉后土壤体积质量均值减小6.5%，总孔隙度均值增大18.1%；随着废水灌溉次数的增多，土壤体积质量和总孔隙度分别有减小和增大的趋势。3）Horton模型比较适合描述废水灌溉后芦苇群落的土壤入渗过程，废水灌溉降低了初渗率，但随着废水灌溉次数的增多，稳渗率增加明显。4）废水灌溉增强了土壤贮蓄水分的能力，废水灌溉3次吸持贮水量达到最高（90.15 mm），灌水4次滞留贮水量达到最高（4.51 mm）。

This paper has made systematic research about characteristics of soil water dynamic changes, water deficit of the root-zone of pear-jujube tree with regulated deficit irrigation, physiological control in the process of the water use and the stomal response mechanism of pear-jujube tree under the water deficit environment, and the effects of different deficit irrigation levels at different growth stages vegetative growth and repproductive growth of pear-jujube trees, and also its regulation mechanism.

针对西北半干旱区果业生产面临水资源紧缺的现实，论文以该区特色经济果树梨枣树为研究对象，在西北农林科技大学旱区农业水土工程教育部重点实验室、陕西省大荔县城关镇梨枣园分别开展了温室与大田试验，对调亏灌溉的梨枣树根区土壤水分动态变化特征、水分亏缺与复水环境下梨枣树用水过程、生理调控与气孔响应机理、不同生育期不同水平亏水处理对营养生长与生殖生长的影响及其调控机制等进行了较系统的研究，分析了各生育期不同亏水处理对梨枣耗水规律、产量、品质、作物系数、水分利用效率及经济效益的影响，取得了以下成果：⑴通过亏水处理与复。。。

Reading Material Irrigation Methods There are five methods of applying irrigation water to fields-flooding,furrow irrigation,sprinkling,sub-irrigation,and trickle irrigation.

读物质的灌溉方法应用到领域的灌溉水有五个方法-洪水泛滥，犁沟灌溉，洒水，子灌溉，和滴灌溉。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。