salinity of irrigation water 中文意思是什麼

salinity of irrigation water 解釋
灌溉水的含鹽度
  • salinity : n. 鹽分；鹽濃度，鹹度；含鹽量。
  • of : OF ＝Old French 古法語。
  • 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。
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  1. The stem of helianthus tuberosus ( l. ) had the ability of containing high contents of na + and cl -, and selectively absorbed k + in high proportions seawater irrigation ; the above and tubers yields of helianthus tuberosus ( l. ) had n ' t decreased until at the 50 % proportions seawater irrigation where the yields decreased by 37 % and 32 % in contrast to freshwater - irrigated. it meant that through natural weather, reduction of yields was occurred by salinity of irrigation water but the reduction was not significant until the proportions of seawater in irrigation water were the same as 50 % or above it

    海水灌溉下，菊芋的莖部具有明顯的貯cl ~ - 、 na ~ +能力，在高濃度海水灌溉下菊芋整個植株對k ~ +具有較高的選擇吸收性；菊芋地上部和塊莖產量在30海水處理范圍內，沒有減產趨勢，在50海水灌溉下減產幅度分別為37和32 ；可見，正常自然條件下的海水灌溉，對產量的影響主要和灌溉水的濃度有關，但只有在50處理下才顯著減產，低於50產量並無差異。
  2. The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture ( horizontal and vertical ), reuse of groundwater, ground - water hydraulics, ( geo ) hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions

    描述:探討農業耕地的水澇問題；灌溉導致的土壤鹽堿化；地表灌溉；地下水的再利用；地下水水力學；雨水與水流失的關系；淺地表排水；土壤開墾及水澇，酸性，堿性土壤的改良；片段線形回歸和累積頻數分佈的統計分析等。
  3. But, when the total water quantity is reduced 30 % of present average amount in the 2010, the total salinity of groundwater will have significant increase in the different period ( pre - summer irrigation, post - summer irrigation, pre - autumn irrigation and pre - freezing up of soil four periods ). the water quality will be likely to deteriorate ; in addition, the prediction models of soil moisture and saline concentration are established

    通過試區土壤水分、鹽分的bp與rbf模型的模擬與檢驗，預測了2005年、 2010年夏灌前、夏灌后、秋澆前與封凍前的土壤水鹽狀況，得出上壤水分隨著灌水量的減少呈下降趨勢，而土壤鹽分在淺層與中層呈現出不同的結果： oa
  4. Abstract : based on the dynamic response model of crop to water - salinity, the relation between crop growing and soil - salt movement is analyzed. the optimal design model of irrigation schedule for high yield, water saving and salinity control is proposed. it helps to promote the management of water saving and utilization of poor quality water. case study shows that the model is reasonable and practical, the percentage of fresh water saved is 31. 1 % and the crop yield is optimized

    文摘:本文根據作物水鹽動態響應函數，分析了作物生長與土壤水鹽運動關系，建立了節水、控鹽、高產灌溉制度優化設計模型，為節水灌溉和微鹹水利用提供了決策依據.實例分析表明，本文提供的模型及方法是合理的；實施節水、控鹽灌溉制度能帶來明顯的經濟效益和環境效益
  5. We draw the conclusions as follows from prediction results : the total salinity of groundwater will slightly increase compared with present mean value, when the irrigation water amount is reduced 10 % of present normal water quantity in the 2005

    從預測結果看， 2005年在引水量減少10的情況下，試區的地下水礦化度較目前多年平均值略有升高。 2010年，當引水量減少30時，地下水礦化度在不同時期有較大幅度上升，值得引起注意。
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