irrigation water sources of 中文意思是什麼

irrigation water sources of 解釋
灌溉水水源
  • 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；...
  • sources : 世界通訊
  • of : OF ＝Old French 古法語。
  1. The present utilization and existing problems in water resource of the north of huaihe river in anhui are introduced. based on such research objects as northern guo river of bozhou, jiangtang of fuyang and key city zones, a mathematical model with systems engineering viewpoint is established and used to investigate in water resource problems in the area. the main contents are as following : ( 1 ) groundwater resource and present utilization ; ( 2 ) mensuration of calculational parameters of groundwater and calculational methods ; ( 3 ) economic parameters of irrigation areas ; ( 4 ) establishing northern wo river forecast model with finite element method, areal well - group method and water balance method ; ( 5 ) establishing optimal water resource allocating model for northern jiangtang and new cihuaixin river irrigation area and investigating in the combination of surface water and groundwater, optimal agricultural planting - mode and optimal distribution proportion of various water sources ; ( 6 ) some existing exploitation problems and advices about water resource in the area

    本論文針對淮北地區水資源開發利用現狀及存在問題，以安徽亳州渦河以北地區、阜陽姜堂鄉和重點城市區為研究對象，運用系統工程觀點，採用數學模型方法，對該區水資源問題進行了綜合研究，主要內容為： （ 1 ）地下水資源及開發利用現狀； （ 2 ）地下水計算參數測定和計算方法； （ 3 ）灌區經濟參數； （ 4 ）採用有限單元法、面狀井系法、水均衡法，建立亳州渦河以北地下水位預測模型； （ 5 ）建立阜陽姜堂及茨淮新河北部的農灌區水資源優化配置模型，應用系統分析的方法，研究地表水與地下水聯合運用，農業最優種植模式及各種水源的最佳分配比例； （ 6 ）淮北地區水資源開發利用存在問題及建議。
  2. 7 irrigation : no untreated sewage water may be used for irrigation. irrigation methods should take into consideration sustainability of the water sources and the quality of the water

    灌溉：任何沒有經過處理的污水溝都不能用於灌溉。使用的灌溉方法要考慮到水資源的可持續性和水的質量。
  3. The mission of the conservation and production research laboratory is to 1 ) develop improved water management methods and irrigation technology for sustaining or enhancing crop productivity, improving water use efficiency, reducing ground water use, and enhancing water and soil quality ; 2 ) develop management practices that optimize the use of water, soil, climatic, and nutrient resources for economically and environmentally sustainable crop and livestock production systems under dryland and limited - irrigation conditions ; 3 ) develop systems for utilizing renewable energy sources ( wind, solar, and biofuels ) for pumping irrigation, livestock, and farmstead water and generating electric power ; 4 ) develop regimens that reduce environmental risks posed by accumulations of feedlot wastes by reducing the phosphorus content, improving nutrient utilization, and applying manure to grasslands

    描述:美國農業部保持與生產研究實驗室的主要任務是： 1 .開發水資源管理方案或灌溉技術，提高用水效率，減少地下水使用，改善土壤和水質； 2 .使水資源、土壤資源、氣候和養分資源達到最優化，以保證在乾旱和灌溉條件有限的地區種植業和畜牧業能可持續發展； 3 .開發可再生能源用於灌溉、畜牧飼養和發電； 4 .通過減少磷成分，降低飼養場廢棄物的環境風險，將其施用於牧草地，提高養分利用率。
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