表土耕作 的英文怎麼說

中文拼音 [biǎotǔgēngzuò]
表土耕作 英文
surface tillage
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 耕 : 動詞1. （用犁翻地） plough; plow; cultivate; till 2. [書面語] （謀生） make a living
  • 耕作 : tilth; tillage; cultivation; farming
  1. ( 3 ) the spatial analysis results showed that the variation of soil clay content was moderate at the direction of vertical section. the soil clay content was highest at the layer of 20 - 40cm, which showed that it is an eluvial accumulation horizon according to long - term cultivation, irrigation and rainfall

    （ 3 ）土壤粘粒含量在垂直方向上呈中等變異，整個土體在20 - 40cm土層處的粘粒含量最高，說明土壤表層由於長期耕作、灌溉降雨，土壤粘粒含量有一個淋溶淀積過程。
  2. Conservation agriculture helps to retain crop residue on the soil surface to minimize water and wind induced soil erosions. consequently, sand storms are reduced. it also leads to increases in soil organic matter by sequestrating atmospheric co2 to reduce greenhouse gas effects

    20世紀80年代，我國科技人員開始對保護性耕作技術進行試驗研究，通過研究表明，在中國實施保護性耕作可以起到蓄水保墑節本增效抑制農田揚塵增加土壤有機質的作用，具有明顯的經濟生態效益。
  3. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。
  4. According to the idiographic complexion of our country, the article elucidated the connotation of conservation tillage : it ' s a technology of tillage with minimum tillage or no - tillage so as to reduce the soil ' s disturbing, using stalk cover the field so as to decrease laboring and tillage ' s cost, preventing wind & water erosion, and improving the fertility of soil and the ability of fight a drought

    摘要根據保護性耕作在我國的實施情況並結合國外已有研究結果，我們認為保護性耕作的內涵為：保護性耕作措施就是對農田實行少耕或免耕，盡可能減少對土壤的擾動，並以秸稈覆蓋地表，達到減少勞動強度和生產投入，防止農田風蝕和水蝕並提高土壤肥力和抗旱能力的一種農田耕作技術。
  5. Because no tillage and minimum tillage reduce erosion and concentrate nutrients in the surface soil just below the residue cover, micronutrients generally are less often deficient than under conventional tillage

    由於少耕和免耕減少了水土流失，同時把養分富集在植物殘茬覆蓋下的土壤表層，所以，與傳統耕作制相比，少耕和免耕一般不易發生微量元素的缺乏。
  6. But there are no report of the design and research on bionic adhesion decreasing efficiency of the standard disk plow that has a great difference to other soil touched component on working manner and force support status currently. in this paper, standard disk plow was selected to be research object. with disk plow referred as bionic components and the theory of soil touched component adhesion decreasing and resistance reducing applied, we modified its shape and promoted its property

    本文選擇標準型圓盤犁作為試驗研究對象，以圓盤犁刀為具體的仿生設計部件，運用觸土部件減粘脫土理論，在仿生表面改性、改形研究以及傳統圓盤犁刀結構基礎上，首先對圓盤犁刀進行了若干種仿生非光滑結構不同組合設計，繼而製作了兩組試驗用仿生圓盤犁刀，最後對設計加工的仿生圓盤犁刀，分別進行了正交試驗設計和二次回歸試驗設計，在室內土槽中進行了研究條件下的耕作試驗。
  7. Aerodynamic roughness of cultivated soil and its influence on soil erosion by wind in a wind tunnel

    耕作土壤表面的空氣動力學粗糙度及其對土壤風蝕的影響
  8. The available phosphorus contents of the run - off from the plot iii and plot iv were higher than that of other two plots " run - off. the nutriments of sediments from the four plots were higher than the nutriments of soil in the plots. the plot ii and plot iv had the higher enrichness degree of total nitrogen than the other two plots ; the available nitrogen enrichness of sediments from plot iv was the highest, that of from plot illwas the lowest ; the available phosphorus enrichness of sediments from plot iv was the highest, that of from plot illwas the lowest ; the available potassium enrichness of sediments from plot ivwas the highest, that of from plot ii was the lowest

    泥沙各種養分含量均高於小區內耕作層土壤中的相應養分含量，表現為：第2 、 4小區的流失土壤全氮養分富集度高於其餘兩個小區；第4小區流失土壤有效氮富集度最高，第2小區次之，而第1小區和第3小區的流失土壤有效氮含量與區內耕層土壤相似；各小區流失土壤中速效磷富集度為第4小區最大，第3小區最小；而第4小區耕層土壤中在流失過程中速效鉀西南農業大學二oo二屆碩士學位論文一積累量最大。
  9. Experts say the project will have to deal with dry conditions, poor soil quality and other realities of farming in southern africa

    專家表示項目不得不應對乾旱，貧瘠的土壤以及其他南非實際耕作狀況。
  10. Absolute amounts of soil erosion is not large for the falling gradient in black soil region, but the nutrient is high in erosion soil, the nutrient of erosion soil and runoff is high, which leads to soil fertility degeneration, while n and p nutrient pour into water with surface runoff, it leads to water nutrient enrichment and pollution, and becomes one of confined factors of water nutrient enrichment

    吉林農業大學碩士學位論文黑土地表徑流氮磷養分特徵及其與肥力退化的關系由於黑土耕作區坡度平緩，土壤侵蝕的絕對量並不很大，但由於土壤中攜帶的養分高，養分流失的較多，流失的養分將引起肥力的退化，而且氮磷等養分隨地表徑流流出匯入各種水體，引起水體富營養化和污染，成為水體富營養化的限制因子。
  11. Experimental soil used in this study was from inner mongolia, typical loess sampled from top layer of cultivated soils

    試驗土樣取自於內蒙古清水河地區耕作表層土，是典型的黃綿土，為淡黃色。
  12. Data in table 8 and numerous field observations show that because the soil is less disturbed, zero tillage results in less weed populations than conventional tillage

    表8的資料和一些大田觀察資料表明，因土壤較少被擾動，免耕比傳統耕作的農田雜草群體更少。
  13. Then, in order to pursue effect of soil humidity to the relationship between the turnover of organic matter and the micro flora, the no - tillage and ridge culture simulated experiment is carried out to find out the exactly reasons for the high level of organic matter and assoc

    可見，大量的有譏殘體的返還是土壤有機質增加的充分條件：影響土壤有機質的積累的表面上是耕作和輪作制度，而實質是有機殘體的返還量及其適宜的分解、周轉條件。
  14. Some area such as darning, handan city, yongnian and shexian is marginally suitable, suff value is between 0. 4 and 0. 8. unsuitable areas mainly distributes on hills, mountains and valleys, suff value is between 0. 2 and 0. 4. moreover, for sheixan, handan city and darning, soil water condition during maize growth period was studied by crop model ps 123, the results show : soil water condition in handan city is sufficient for the whole maize growth period ; in shexian, soil water is not sufficient for the whole maize growth period except heavy loam soil ; in damiag, soil water is not sufficient for maize growth since silking stage

    結果表明，邯鄲19 . 7的土地面積由於具有潛在侵蝕危險而不適宜耕作， 2 . 5的土地面積由於土壤水分條件太差而不適宜耕作， 9 . 5的土地面積由於水分條件或養分條件不太理想而邊際適宜農業開墾， 68 . 3的土地面積適宜和非常適宜農業耕作，其中適宜農業開墾的地區已經全部種植作物而且在丘陵和山區許多不適宜開墾的地區也被開發利用，表明邯鄲地區已沒有可在開墾的后備土地。
  15. 4 a new blade has been developed and its parameters have been studied in detail. 5 a new no - tillage planter 2bmyw - 2 is made and more than 110mu fields in herbei province are planted using it. the production experiments shown that the rate of clearing rootstalks away from seed beds is more than 92 % and disturbed soil is from 20 % to 27 % and the working performance of the sample machine is excellent

    （ 5 ）製作出2bmyw - 2型切挖式玉米免耕播種機一臺，在河北豐寧和學校農場進行了110多畝的免耕播種試驗，結果表明：該機對播種帶的玉米根茬清除率達92以上，種床基本無玉米根茬，破茬能力強、清茬效果較好，動土量少，表土破土量約佔20 27 。
  16. Several types of curved subsoiler shapes are designed and founded, and the macroscopical disturbing profile of soil after subsoiling and these subsoilers ' working resistance are measured with a big laboratory soil bin, the manner of graphics expression about the macroscopical disturbing profile of soil after subsoiling is quantificationally given, and the relation between the cultivation resistance and the macroscopical disturbing profile of soil after subsoiling is analyzed

    摘要設計製作了幾種彎曲型深松部件，通過室內大型土槽耕作試驗，測定了各種深松部件耕作以後土壤的宏觀擾動輪廓和耕作阻力，對于土壤的宏觀擾動輪廓給出了定量化的圖形表達方式，並且分析了其與耕作阻力之間的關系。
  17. Factors which influence field soil water infiltration characteristics have soil structure, soil moisture, soil texture, topsoil crusting and plate, agriculture husbandry measure and soil water phase change and so on

    影響大田土壤水分入滲特性的因素有：土壤結構、土壤含水量、土壤質地、表土結皮和板結、農業耕作措施和土壤水的相變等。
  18. The outcomes show that cultivation measures have the reduction functions of run - off energy and slope sediment production, of which, the action of contour cropping is the maximum and the action is reduced along with the increase of rainfall intensity and surface gradient ; cultivation measures also have a certain correlation on the reduction functions of run - off energy and erosion, in the meanwhile of slope sediment production, it is effected by the factors of soil erosion resistance and scouring resistance

    結果表明：耕作措施對徑流能量及坡面產沙均具有削減作用，其中等高耕作的作用最大，隨雨強和地面坡度的增大其作用減弱；耕作措施對徑流能量的削減作用與減蝕作用之間具有一定的相關關系，但坡面產沙同時受土壤抗蝕、抗沖性等因素的影響。
  19. China agricultural university established an experiment plots in high land of fengning country, hebei province and observed the natural wind erosion. it indicated that, compared with traditional tillage - plowing up the soil in autumn, conservation tillage can reduce 77 % of soil wind erosion. it is necessary to research systematically and comprehensively on farmland wind erosion in order to study further about the effects and mechanism of conservation tillage and to explore the measures of preventing soil wind erosion

    中國農業大學在河北豐寧壩上建立農田實驗區，進行自然風蝕觀察，表明與傳統耕作（秋翻地）相比，保護性耕作可以減少土壤風蝕量77 ，進一步研究保護性耕作的防風蝕效應和機理，探索防治土壤風蝕的措施，需要對農田風蝕進行系統而全面的研究。
  20. Organic matter is higher at the soil surface because plant residues from either grasslands or no - till are left on the surface whereas residues in conventional fields are mixed in the soil ; giving uniform organic matter

    在草地和免耕方式下，植物殘體留在土表，所以表層土壤的有機質含量較高，而在傳統耕作制下，植物殘體被翻入土內，所以各層土壤中有機質含量差別不大。
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