irrigation rate 中文意思是什麼

irrigation rate 解釋
灌水定量
  • irrigation : n. 1. 灌溉；水利。2. 【醫學】沖洗（法），〈pl. 〉沖注洗劑。adj. -al ,-ist n. 灌溉者，水利專家。
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. With a big flow rate, it is suitable for the use of plain river network area and hilly irrigation and drainage, piscina water supply and drainage industrial water supply and drainage

    本產品流量大，適用於平原河網地區和丘陵灌區，特別適用於農田排灌、魚塘供排水及工業供排水。
  2. Analysis and countermeasure on water rate managing reform in irrigation works

    水利工程水費經營性改革分析與對策
  3. In term of rational price the compensation benefit in the main stream of the yellow river mean annual is 5. 086 * 10a8 yuan. ( 4 ) with the long - liu regulated, the ning - meng irrigation guarantee rate increased from 31. 25 to 86. 25 percent, the downstream increased from 56. 25 to 80. 00 percent

    （ 4 ）黃河上游水電站調節直接保證了寧蒙灌區與下游省區的灌溉用水，經上游龍劉調節以後，寧蒙灌區灌溉年保證率由31 . 25提高到86 . 25 ：下游省區由56 . 25提高到80 . 00 。
  4. Including irrigation time, frequency, and quantity of water, of which based on the evapotranspiration rate and crop coefficients in different months and the rank of visual appearance of different date

    根據草坪質量與土壤含水量、土壤水勢的相關性及作物系數、蒸發量等參數，準確計量其灌水時間、灌水量和灌水頻率。
  5. First each of the eight factors, i. e., per capita water resource available, per capita water requirement quantity, environmental water use rate, utilization rate of water resource, industrial water requirement quantity per 10, 000 industrial product value, water requirement module, regional irrigation rate was analyzed. then the water resource capacity in hejin city was evaluated by applying the fuzzy comprehensive estimation

    選取了人均水資源可利用量，人均供水量，生態需水率，水資源利用率，萬元工業產值需水量，需水模數，生活需水定額，耕地灌溉率等8個評價因素，利用模糊綜合評判模型對其水資源承載能力進行了評價研究，並提出了河津市水資源安全對策。
  6. In order to adapt the demands of market economy, reformation of administration system in irrigation district is fully executed. one of the important symbol is levying water - rate by quantity having substituted levying by mu. this requires measuring water should be carried out thoroughly, especially in sublateral canals and field ditches

    為了適應市場經濟的要求，灌區管理體制的改革正全面展開，其中一個重要標志就是改以畝計征水費為按量計征水費，這就要求灌區量水，尤其是斗、支渠必須全面實施。
  7. This paper evaluates the underground water resources and its safe levels of miming, and then studies the availability of molepipe drainage, a kind of practical underground water regulation technique. starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well - studied determination method of determining the two hydrographical coefficients : rainfall infiltration replenishment rate and irrigation replenishment rate. then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage, exploitation on water regulation

    論文從灌區的地下水資源及其可開采量評價分析方面入手，在對兩個主要的水文地質參數即降雨入滲補給系數、灌溉入滲補給系數確定方法研究的基礎上，對灌區的地下水資源狀況進行分析，依據灌區的灌溉、降雨、排水條件及各種現狀因素，建立了地下水資源量計算的數學模型，西安理工大學工程碩士專業學位論文計算得到青銅峽灌區地下水的最大補給量和可開采量;另外對在開發利用地下水資源過程中的地下水位的調控進行了初步的探討，在銀北灌區開展對暗管排水調控地下水位的試驗研究。
  8. In the fourth chapter, the effect of controlled alternative furrow irrigation on the ratio of root to shoot, filling rate, leaf physiological indexes, yield and water use efficiency of summer maize were discussed, and the lower limits of suitable irrigation for summer maize in controlled alternate furrow irrigation were analyzed and determined

    29 ，表明干濕交替循環不僅可以減少每次灌水間隔期間的棵間土壤無效蒸發，而且也抑制了作物的奢侈蒸騰，因此作物需水量明顯減少，節水效果非常顯著，被證明是溝灌方式中最科學的一種灌水方法。
  9. The main issues of the research are put as following : firstly, with the international comparing of market sharing rate and trading competitive index, it was revealed that wheat in china has inferior international competitiveness with a bit rising during current years, however, which is still behind that of the main wheat export countries. secondly, after the international comparing of the main factors that affect the international competitiveness of wheat, it was discovered that chinese wheat has the obvious cost advantage on unit product, while because of the high circulation fee, it results in inferior advantage on the price ; low and unstable quality is another factor which leads to inferior wheat competitiveness ; the input of fertilizer and labor makes little impact on the productivity of chinese wheat, while the input of seeds, irrigation and machine makes a strong impact, so it should be more invested in seeds, irrigation and machine to reduce wheat ' s unit cost. the assistant industries of the wheat, such as breed, production materials and processing industries, have inferior international competitiveness and lagged development

    其次，通過對影響小麥國際競爭力的主要因素的國際比較發現：中國小麥單位產品生產成本具有明顯優勢，但由於較高的流通費用，導致在價格上不具有優勢；小麥質量較差、品質不穩定是導致中國小麥國際競爭力較低的主要因素；生產要素中化肥和勞動力投入對中國小麥生產力水平的影響程度較小，而種子、灌溉和機械投入對小麥生產力水平的的影響程度較大，因此小麥生產投入要以增加種子、灌溉和機械的投入為主，代替大量的化肥和勞動力投入，進一步降低小麥單位產品成本，增強中國小麥國際競爭力；中國小麥的上下游輔助產業（包括品種資源、生產資料和加工業）的國際競爭力較弱，發展較為滯后；中國小麥生產者的組織化程度較低嚴重製約了中國小麥質量的提高、流通費用的降低和加工業的發展；小麥生產經營活動本身的特點決定了在充分發揮市場機製作用的基礎上，必須通過政府的宏觀調控來克服其市場機制的失靈，保障市場機制有效運行，但通過國際比較研究發現：中國政府在生產者支持、市場體系建設和國際貿易政策上對小麥的支持水平較低，與提高中國小麥國際競爭力的要求有較大差距，尤其是較低的生產者支持水平和市場體系建設程度制約了中國小麥國際競爭力的提高。
  10. Through 3 - year field experiment, mathematical models were established for yields of spring and winter wheat, soil wetness, designed irrigation depth and fertilization rate. 8

    6 .通過三年田間試驗，建立了噴灌條件下冬小麥、春小麥產量與土壤濕度、計劃濕潤層深度和追肥量三因素間的數學模型。
  11. Using plots with water and fertilizer fully controlled, the effect of photosynthetic characteristic and yield under different treatments of water and fertilizer coupling was investigated. the result showed that photosynthetic rates are different among treatments of water and fertilizer coupling, and the change of stomatal conductivity is the same as photosynthetic rat. there is almost no influence on evaporation rate and cellular co2 concentration the combination of fertilizer and manure under natural rainfall is beneficial to the maintenance of photosynthetic rate during grain filling, thus results in highter yield and good quality. however, the coupling of fertilizer and manure with sufficient water results in the decline of photosynthetic rate and stomatal conductivity, the yield decreased indicating there has a balance ratio between water and nutrients ( fertilizer and manure ) supply. the study proposed that the optimum management to exploring yield and qlality potential is the combination of fertilizer and manure application with no irrigation

    利用可精確控制水分條件的水肥平衡場，在不同水肥耦合處理的條件下，研究了水肥耦合對玉米光合特性及產量的影響，結果表明:不同水肥耦合處理的條件下，玉米的光合速率有所不同，氣孔導度的變化與光合速率的變化表現基本一致，而對蒸騰速率、細胞間co2濃度影響不大.其中，在自然降水條件下，有機肥和無機肥的配合，有利於玉米子粒灌漿期維持較高的光合速率，表現出良好的產量潛力.充足水條件下，有機肥和無機肥的配合，光合速率及氣孔導度表現較低，表現產量有所下降，說明供水量與施肥量之間有一個平衡系數.表明黑龍江省北部黑土區自然生態條件下，為充分發揮玉米的產量潛力，最佳的管理措施是增施無機肥和有機肥的配合
  12. The original flow rate formula of parobolic throat flume used for u - shaped channel is implicit function and is not convenient for calculation in irrigation districts. an simplified formula is developed in this paper, with a di fference between results calculated with the original formula and the new formul a being less than 0. 5 %

    用於u形渠道量水的拋物線形喉口式量水槽原流量公式為隱函數形式，針對其使用不便的現狀，通過理論分析推導出了顯函數形式的量水槽流量公式，計算結果與原流量公式比較相對誤差值0 . 5 % 。
  13. Transportation of total nitrogen is meanly effected by precipitation, irrigation, rate of fertilizer application of agriculture, permeability of soil and thickness of unsaturated zone et al

    總氮的遷移主要受到大氣降水、灌溉水、農業施肥量、土壤的滲透性以及包氣帶厚度等因素的影響。
  14. The effective utilization rate of agricultural irrigation water is very low. its utilization factor is below 0. 4 that there are great potentialities on water saving in irrigated regions

    農業灌溉水有效利用率低下，灌溉水利用系數不足0 . 4 ，灌區節水有相當大的潛力。
  15. On this basis, the method for determination of reduced infiltration rate coefficient from irrigation data of surgeflow border irrigation is deduced

    實例計算表明，這些方法能簡單而有效地求得田間土壤平均入滲參數和減滲率系數。
  16. With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability

    在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。
  17. The nh4 + - n accumulated in the upper layer of soil when the irrigation water was low ; and at the high irrigation rate, this accumulation was decreased

    灌水量低時，滴灌施肥銨態氮在土壤上層明顯累積；灌水量增加后，這種累積作用減弱。
  18. Application of long - throat flume in measuring flow rate in irrigation areas

    長喉道量水槽的應用研究
  19. However, the movement and transformation of n in soil under fertigation remains unclear. the methods of simulation experiment and culture experiment were used to study the movement and transformation of n in soil under fertigation by drip irrigation. the main experimental results were shown as folio wings : ( 1 ) the water infiltration under drop irrigation is a point infiltration ; and the soil moisture in vertical and horizontal directions was increased with the irrigation time, and the movement rate were decreased with the irrigation time

    本研究採用室內模擬試驗和生物培養試驗相結合的方法，研究了在滴灌施肥條件下，化學氮肥施入土壤后的遷移、轉化規律以及對作物生長的效應，獲得了以下主要結論： （ 1 ）滴灌條件下水分以點源入滲土壤，水平和垂向的濕潤鋒均隨入滲時間的增加而逐漸變大，在入滲開始階段濕潤鋒的推進速率較大，隨入滲時間的延長，濕潤鋒的推進速率逐漸變慢。
  20. With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples, the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0. 5 % and 1 %, then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers

    摘要以內鑲式滴灌帶和薄壁滴灌帶為研究對象，測定了平坡、 0 . 5 %坡度和1 %坡度時，不同入口壓力下滴頭沿毛管的流量分佈和水力損失，並結合滴頭的製造偏差，計算得出不同坡度和壓力條件下滴灌毛管的均勻度。
分享友人
分享到 Line

分享到臉書