淋洗土壤 的英文怎麼說
中文拼音 [lìnxǐtǔrǎng]
淋洗土壤
英文
washed off soil-
It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish
它可以直接使大片森林死亡，農作物枯萎；也會抑制土壤中有機物的分解和氮的固定，淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素，使土壤貧瘠化；還可使湖泊、河流酸化，並溶解土壤和水體底泥中的重金屬進入水中，毒害魚類；加速建築物和文物古跡的腐蝕和風化過程；可能危及人體健康。In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。White r e. prediction of nitrate leaching from a structured clay soil using transfer functions derived from externally applied or indigenous solute fluxes [ j ]. hydrol., 1989, 107 : 31 - 42
任理，袁福生，張福鎖.冬小麥生長條件下土壤硝態氮淋洗的傳遞函數模擬和預報[ j ] .生態學報（印刷中）According to the amount of no3 ( superscript - ) - n in the deep layer soil during the growth of winter wheat, irrigation and fertilization help to no3 ( superscript - ) - n leaching, so it was very easy to seep into groundwater and pollute the environment
在冬小麥的整個生育期中，拔節期的追肥灌水有助於硝態氮向土壤深處移動，甚至有可能淋洗出根層，對地下水產生影響。Leaching leads to the formation of podsolized and lateritic soils
淋洗作用使得土壤灰壤化和紅土化。A leached soil formed mainly in cool, humid climates
灰壤，灰化土一種淋洗的土壤，主要形成於陰涼而濕潤的地帶Evaluation of phosphorus leachability in sand soils by means of soil p test
應用土壤測試磷評估砂土中磷的可淋洗性Leaching the removal of humus and soil nutrients in solution by water moving down the soil profile
淋洗作用：流水沖走土壤表面的腐殖質和營養成分的過程。( 2 ) aiming at the bigger irrigation quota of fall irrigation system and the complicacy of the salt movement in soil, the paper applies reservoir leaching model bring forwarded by w. h. van der molen to hetao irrigation district located in aridity area, and establishes salt leaching simulational model under the fall irrigation system. through calculating, the feasible fall irrigation quota is 100 - 120m2 / 667m2 in light salinization soil, and the feasible fall irrigation quota is 120 - 150 m2 / 667m2 in mild salinization soil. the model is reasonable and exact, and it can be researched deep
（ 2 ）針對在秋澆灌溉制度中秋澆定額較大，土壤中鹽分運移規律復雜的特點，利用w ? h ? vandermolen提出的水庫沖洗模型，建立了地處乾旱地區的河套灌區區域內的秋澆制度鹽分淋洗模擬模型。經計算在輕度鹽漬化土壤中秋澆的灌溉定額以100 120m ~ 3 667m ~ 2為宜；中度鹽漬化土壤秋澆的灌溉定額以120 150m ~ 3 667m ~ 2為宜，模型合理可靠，準確可行，可進一步向縱深方向進行研究。Based on the experiment studies, the study on water and solute transport in sandy soil under reclaimed water irrigation was made, the result can give some reference for the effect on soil solute transport and soil environment under micro - contaminated water irrigation
摘要以寧夏回族自治區大武口市森林公園的含礫砂土為研究對象，通過室內試驗，對中水灌溉條件下砂礫質土壤在不同灌水量、多次連續灌水、降雨淋洗等不同來水條件下水分、污染物運移的規律進行了初步的研究，為微污染水用於綠化灌溉對砂礫質土壤中污染物運移及累積的研究提供科學依據。Extraction process with or without additives are employed to removal contaminants in soil
摘要污染土壤淋洗修復技術中，淋洗劑的選擇是影響這一技術應用的限制因素之一。Facing to the reduction of the water diversion from the yellow river for hetao irrigation district inner mongolia autonomy, and giving attentin to agriculture production and improvement of salinization, this paper researches optimization model of district water - saving irrigation water management. the paper also quests for the optimization model of crop irrigation system and the optimization irrigation strategy aiming at the short of water for agriculture. in order to save water and use water high efficiently, this paper researches the change regulation of irrigation system of spring - wheat that is the important crop in the irrigation districted establishes the multidimensional dynamic model of irrigation rules of spring - wheat. lt also makes the simulation model of salt leaching of fall irrigation rules during non - growing period, and sorts the elements influencing water - saving of irrigation system
在內蒙古河套灌區的引黃水量減少又要兼顧灌區的農業生產和土壤鹽漬化向良性發展的形勢之下，本文針對灌區內區域灌溉水管理的現狀，對灌區內區域節水灌溉水管理優化模型進行了研究。研究針對農業水資源短缺的現狀，在節水灌溉條件下，對作物的灌溉制度進行優化模型探索，尋求最優灌溉策略。全文圍繞節水與高效用水，綜合應用了系統分析、灌溉排水及節水灌溉的原理和知識，研究了灌域內主要作物春小麥的灌溉制度的變化規律，建立了春小麥灌水制度的多維動態優化模型；建立了非生育期的秋澆制度的鹽分淋洗模擬模型；對節水灌溉水管理的影響因素的重要性進行了排序研究。( 4 ) soil water flow was simulated by macro model and soil nitrate transport was simulated by coupmodel. part of soil layer ' s simulated results fitted well compared with the measured values. the water percolation amount simulated with considering macro - pore was 60
（ 4 ）用macro模型模擬水過程， coupmodel模型模擬氮素轉化過程，部分土層水、氮的模擬結果和實測值較吻合，考慮大孔隙時模擬得到土壤水的滲漏量較不考慮時高60 . 50 ，土壤硝酸鹽淋洗量占施肥量30 . 87 ，比不考慮時高。Studying on the mechanism of nitrogen transport and transformation under the conditions of fertilization and irrigation with sewage effluent is very important for utilization of sewage effluent and fertilizer and pollution control. based on laboratory and field experiment and numerical simulation, nitrogen transport and transformation has been investigated in this dissertation
污水灌溉和施肥條件下，氮素在土壤與作物系統中遷移轉化規律的研究，對于合理利用污水資源和合理施肥，最大限度提高水分和養分的利用率，減少硝態氮淋洗風險，具有十分重要的意義。A soil column leaching experiment was designed and conducted to investigate effect of simulated acid rain on release of cadmium from soil. the effects of ph, velocity of flow, and component part of acid rain on the release of cadmium from soil were studied. and further more, the influence of the content of co23 in the soil sample on the release of cadmium has been studied
模擬土壤在自然酸雨淋洗條件下鎘的釋放行為，研究了不同酸度、不同酸雨成分、不同流量的酸雨對土樣中鎘淋出的影響，以及鎘在不同碳酸根含量的土樣對酸雨淋洗的敏感性。A preliminary study was carried out on the method of acquiring parameters for soil dual - porosity model and the analysis for the simulation of soil nitrate leaching by dual - porosity model. the feasibility and experimental conditions of soil particle size analyzing by the laser particle - size analysis was discussed, based on the comparison results of nine soil samples by the laser particle - size analysis and traditional pipette and sieve analysis
本文初步探討了土壤兩域模型的參數獲取方法及兩域模型應用於土壤硝酸鹽淋洗的模擬分析，為進一步研究優先流以及分形理論在土壤溶質（包括養分）運移研究中的應用打下基礎，以更準確地模擬和預測農田土壤硝酸鹽的淋洗，為農田水肥優化措施提供依據。分享友人