soil salt content 中文意思是什麼

soil salt content 解釋
土壤含鹽量
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  • salt : SALT ＝Strategic Arms Limitation Talks 限制戰略武器會談。n 1 鹽，食鹽。2 【化學】鹽；酸類和鹽基化...
  • content : n 1 容積，容量，含量，【數學】容度；收容量。2 【哲學】內容 （opp form）；要旨，真意。3 〈pl 〉內...
  1. 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。
  2. The dispersibility as well as seepage distortion and salt transference under long - term seepage condition of soil samples obtained from the clay core wall in xijiao and sanping reservoirs were studied by physical and chemical properties of soil and composition of clay mineral and the tests for identification of dispersive clay soils which included double - hydrometer test, pinhole test, crumb test, tests to defermine salt content of pore water and percentage of exchangeable sodium

    摘要應用碎塊、針孔、雙比重計、孔隙水可溶鹽和交換性鈉百分比等五種試驗方法，結合物理化學性質和礦物成分分析，對西郊、三坪兩水庫大壩心墻土樣進行了多種方案的分散性試驗及長期滲流條件下的滲透變形試驗和鹽分運移試驗。
  3. On the base of var. analysis significance of the experimental treatment, we investigated crop response to water - salt stress regularity, studied the quantity relationship about crop yield and soil water and salt, established a function about them referring to blank and jense water model. conclusions as follows : ( 1 ) the effect of germinating time and rate emergence are different in soil with different salt content, and limited seriously in heavy saline soil

    在方差分析確認試驗處理顯著的基礎上，對作物生理生育指標（株高、莖粗、葉片數、花盤直徑、干物質量、葉水勢、籽實產量）進行統計分析探索作物水鹽響應規律；研究作物產量與土壤水分鹽分聯合作用的定量關系，參照水分的blank加法和jense乘法模型結構，建立作物水鹽響應模型。
  4. This paper studied the effect of soil water content on barley at different growth stages, through the study, we found the sensitive stages of barley to water and salt is the stem elongation and spike formation stages

    研究表明，大麥對水鹽最敏感時期發生在拔節抽穗期，土壤含水量（占飽和含水量的體積百分數）上限值確定為80 . 4 ，耐鹽漬天數為3 . 2天。
  5. The results indicated that the higher irrigation quota was, the higher soil moisture content and the lower soil salt concentration was. but the total salt content increased evidently

    結果表明高灌水定額下，灌後土壤含水量較高，土壤溶液濃度較低，但總鹽量有所增加。
  6. The result shows that the plasticity index and the compression coefficient of the northern inshore saline soil reduce with the increase of the salt content, and the shear strength attains a limit value with the increase of the salt content

    結果表明，北方濱海地區鹽漬土的塑性指標、壓縮系數隨含鹽量的增加而降低，抗剪強度隨含鹽量增加出現一含鹽量界限值。
  7. Sometime the matrix potential of soil water, moisture capacity and the total content of salt capacity in the soil have the same trends of change with depth

    在包氣帶剖面中，在某時刻水土勢、含水量、含鹽量隨深度變化的趨勢相同。
  8. In addition, the temperature, texture, moisture, and salt content of the soil have also a certain effect

    土壤的溫度、質地及水分和鹽分含量對草地蝗蟲的發生和繁育也有一定影響。
  9. The results showed that the lower initial soil moisture content was, the less infiltration occurred and wetting front moved slowly, and soil salt were leached more efficiently. at the same time, salt reduced in the top soil and salt accumulated at the wetting front

    通過對土壤初始含水量下土壤水鹽運移規律室內模擬試驗研究，發現隨著土壤初始含水量的增加，相同入滲歷時內的累積入滲量和濕潤鋒都在增加。
  10. The genetic diversity level ofreaumuria soongorica had the negative correlation with the content of soil total p and cl " significantly ( p < 0. 05 ), on the contrary, it had the positive correlation with co32 - significantly ( po. 05 ) but there was no significant correlation between the genetic diversity and the other salt factors in soil, which showed that the distribution of the individuals of reawnuria soongorica correlated with some certain soluble salt

    研究結果表明：無葉假木賊種群的多態位點比率（ ppb ）為94 . 56 ，角果藜種群的多態位點比率則為98 ，顯示出分佈於過渡帶的無葉假木賊和角果藜種群內均存在較高的遺傳多樣性，而角果藜種群遺傳多樣性水平高於無葉假木賊種群。
  11. Moreover, there are good fitted power function relationship between thermal conductivity and soil water content, soil water suction and salt concentration. meanwhile, based on the measured data of soil water content and soil temperature distribution under temperature - controlled conditions, according to philip ' s empirical equation, through difference method, the water diffusivity under temperature gradient was calculated, which can be expressed as a power function of temperature

    此外，研究表明，導熱率與土壤含水率、土壤水吸力、含鹽濃度之間均存在良好的冪函數關系；在取得一定溫控條件下的土壤水分與溫度分佈實測資料的基礎上，根據philip經驗方程，通過差分法計算得出溫差作用下的水分擴散率，該參數可表示為溫度的冪函數形式。
  12. The results indicated that even if there was different at initial soil condition, such as initial moisture content and initial salt content, salt content in soil profile and sar at top soil increased greatly after the high salinity water infiltrated

    結果表明盡管土壤初始條件存在差異，但灌高礦化度水后，土壤含鹽量和溶液濃度總體增加，且土壤剖面特別是表層的sar明顯增大。
  13. When the saline water ( < 3g / l ) infiltrated to 45cm, the top soil of 0 - 37cm was desalinized, when the saline water of 3g / l infiltrated, the desalinized depth was 0 - 15cm. moreover, sar of top soil increased with the sar of the infiltration water. 3. through lab experiment, the characteristics of soil water and salt movement under different initial soil moisture content were analyzed

    當濕潤深度為45cm時，小於3g l的微鹹水入滲后， 0 - 37cm土層處于脫鹽狀態，而3g l的微鹹水入滲， 0 - 15cm土層處于脫鹽狀態， 15cm - 35cm土層含鹽量基本等於初始含鹽量，但濕潤鋒處含鹽量很高。
  14. 2. the change of water content and salt concentration in soil is a dynamic process of balanced accumulation and consumption. it is influenced markedly by the ground water table

    而180 《 40cm以下土層主要受地下水的水位、水質影響，因為地下水的總鹽含量變化也較小。
  15. Investigation and analysis of the salt content in the soil of road shoulder in yingkou area

    營口地區公路路肩土壤含鹽量的調查與分析
  16. Study on the correlation of soil salt content with electric conductivity and soil water content

    土壤含鹽量與土壤電導率及水分含量關系的試驗研究
  17. Dry matter and yield decrease with salt increasing on same irrigation level. ( 4 ) the minimal soil moisture content increases with salt content increasing. meeting minimal needs, crop yield is satisfactory in the soil with salt content bellow 0. 6 %, but not in soil salt content above 0. 6 %, so planting in this soil is n ' t suggested

    （ 4 ）隨著土壤鹽分增加作物對土壤水分要求也增加，含鹽0 . 6 %以下的土壤滿足最低水分要求，可獲較理想產量，大於0 . 6 %以保持土壤水分狀態減輕或消除鹽分脅迫的措施已經不可行，建議不使用含鹽> 0 . 6 %的耕地。
分享友人
分享到 Line

分享到臉書