灌溉需水指數 的英文怎麼說

中文拼音 [guàngàishuǐzhǐshǔ]
灌溉需水指數 英文
index of irrigation need
  • : Ⅰ動詞1 (輸水澆土) irrigate 2 (倒進去; 注入) pour in; fill 3 (飲酒; 勉強他人飲酒) drink wine...
  • : 動詞[書面語]1. (澆水) supply with water 2. (洗滌) cleanse; wash
  • : Ⅰ動詞(需要) need; want; require Ⅱ名詞1. (需用的東西) necessaries; needs 2. (姓氏) a surname
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • : 指構詞成分。
  • : 數副詞(屢次) frequently; repeatedly
  • 灌溉 : irrigate; irrigation; watering
  • 指數 : 1. [經] (比數) index number; index 2. [數學] exponent
  1. According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain

    根據《隨機文學》理論中的時間序列分析法,建立了適合三江平原井量預報的非平穩時序隨機模型;通過分析降雨隨機特性,選定季節性時序隨機模型,建立了適合三江平原井稻降雨預報的月平均降雨模型;根據最小二乘法,計算出幾種常用分生產函中的敏感及敏感系,進而得到三江平原適宜採用的分生產函漠型及模型中敏感的變化規律;本文提出遺傳動態規劃法( raga ? dp ) ,即採用改進的基於實編碼的加速遺傳演算法( realcodingbasedacceleratinggeneticalgorithm ,簡稱raga )與動態規劃法( dpsa )相結合,推求非充分條件下三江平原井稻的最優制度。
  2. At present, the studies about the controlled alternate furrow irrigation are focused on how it affects the water physiological indexes, water consumption and yields of crops. but, some problems suc h as the soil infiltrative parameters, irrigating water advancing, water redistribution in soil, calculation of crop water requirement and water consumption, and the upper and lower limit indexes of soil moisture, guiding a field irrigation after the controlled alternative furrow irrigation is implemented in field, have not been researched systematically and deeply. if these problems could not been solved commendably, the popularization of controlled alternate furrow irrigation will be affected

    然而,目前有關交替隔溝的研究還主要集中於這種方式對作物分生理標、耗量和產量的影響方面,而對大田採用這種式后的土壤入滲參變化情況、作物量與耗量計算、以及導大田分下限控制標等與大田生產實際密切相關的幾個問題基本上還沒有進行系統的深入研究,而這些問題如不能得到很好地解決,勢必會對這種方式的推廣應用產生嚴重的影響。
  3. This paper chooses the indicators of economy and land quality input which has influence on the output, depending on cd - productive function to establish the function between input and output : y : productive forces of the cultivated land f : input of the fertilizer and agricultural chemical i : input of the irrigation l : input of the labor q : input of the land quality a : the level of average management t : the level of changing management a, b, c, d, f : productive elasticity coefficient the factor of the land quality includes texture, content of the organic matter, degree of the pickled, the structure of the soil

    本項研究選擇了影響農用地總產出的經濟投入標和土地質量投入標,藉助c - d生產函,建立土地投入產出的函關系: y = a ? e ~ ( ft ) ? f ~ a ? i ~ b ? l ~ c ? q ~ dy為以土地總產值表示的土地生產力f為化肥和農藥的投入i為投入,即用的電費l為勞動力投入(考慮了農業機械投入的修正) q為土地質量投入a為平均管理平t為變化的管理平a 、 b 、 c 、 d 、 f分別為各相應生產要素的產出彈性系其中,土地質量因子包括表土質地( t人有機質含量矚入鹽漬化程度px土體構型p )等。他們之間的關系為: q ( a ; xt a 。
  4. The capsim model, originally developed by the center for chinese agricultural policy research of the chinese academy of sciences, is the first and most comprehensive model for chinese food demand, supply and trade analysis at the national level. the podium model, developed by the international water management institute, is a tool for accounting of water resources at the basin level. capsdvi - podium has been used as a tool in this paper for analyzing food security and water balance scenarios of china in 2020 based upon the database about food and water situation at the national level, provincial level, basin level and county level, hi accordance with such analysis, this paper puts forward policy recommendations for irrigation diversion of water, regional distribution of agriculture and food security

    因此,論文將糧食求和生產、資源保障緊密的聯系起來,在不打破資源流域特性的基礎上,以全國和九大流域片為研究對象,通過利用全國、流域、省級、縣級統計資料和農產調查及專家訪談資料所建立的包含農業生產、糧食供求、資源等標體系在內的中國糧食安全與資源據庫,以原來中國科學院農業政策研究中心( ccap )開發的以部門均衡理論為基礎的農業政策分析和預測模型( capsim )和國際資源管理研究所( iwmi )開發的以流域資源核算理論為基礎的資源政策分析模型( podium )為依託,發展了capsim ? podium模型,利用該模型為工具,系統、全面地分析了未來全國和九大流域片的平衡和糧食安全情景,在此基礎上提出我國、區域農業布局和糧食安全政策。
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