irrigating land 中文意思是什麼
irrigating land
解釋
灌溉地- irrigating : 沖洗法
- land : n 1 陸地，地面。2 土地，田地；農田；〈pl 〉所有地，地產。3 國土，國，國家；領土；地方；（…的）世...
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After organizing the dynamo program, simulating the sd model, it has get the result that the using dimension area of soil is 5. 72 104hm2 in the 30 years and the relation of the irrigating water volume for farmland, forest - sod land, the ecological water volume, other using water volume and the using area of soil
用dynamo語言編程，藉助于計算機模擬模型，對綠洲sd模型進行運算，求解得出額濟納綠洲未來30年土地開發規模為5 . 72 10 ~ 4hm ~ 2 ，並計算出相應農田灌溉用水量、林草灌溉用水量、生態用水量，以及各類用水量與土地開發規模的關系。 -
Beginning with the analyse of present situation and cause of formation of saline - alkali land, the irrigated area overall water salt trends are analysed, and the irrigated area saline - alkali land and the groundwater level and distribution law of groundwater degree of mineralization are expounded, the trendence of irrigated area saline - alkali land is put forward. then water salt balance model is estanbished according to the relationship of irrigating and drainage. regarding the irrigated area as a balance area, by analysis of mineralization degree of water pumping from the yellow river and drained off water from irrigated area, the change of the draining off water ion is forcasted in water reducing condition
課題研究主要從鹽堿地現狀與成因及灌區總體水鹽動態分析兩方面入手，闡述了灌區鹽堿地、地下水位、地下水礦化度的分佈規律，分析了灌區鹽堿地的成因及變化趨勢；根據灌區灌溉、排水條件與以上各種因素的關系，建立了灌區水鹽均衡模型；把灌區作為一個均衡區，通過對黃河來水礦化度、灌區排水礦化度的分析，預測了在灌溉引水、排水減少時排水離子量的變化；運用灌區水鹽動態模型原理，對灌區現狀（ 1998 、 2000年）與規劃水平年總體水鹽平衡進行了計算；總結分析了灌區水鹽動態變化趨勢，計算並提出了排水控制標準。 -
The land in yellow river plain river is vast, and the topography are level, and it is long to draw yellow river history irrigating, and has the famous wei ning, bronze gorge, inner mongolia bend of a river and soil special river irrigated area
黃河平原河段兩岸土地遼闊，地勢平坦，引黃灌溉歷史悠久，有著名的衛寧、青銅峽、內蒙古河套和土默特川灌區。 -
Welcome to yarlung the yarlung river descends from the beautiful snow - capped yarla shangpo mountain, irrigating the fertile land through which it passes
雅礱河，從美麗的雅拉香布大雪山中汩汩而出，緩緩地流過千年歲月，流淌在雅礱這片肥沃的土地上。
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