滲透土壤 的英文怎麼說
中文拼音 [shèntòutǔrǎng]
滲透土壤
英文
permeable soil-
Field soils often have bulk densities ranging from 1. 0 to 1. 4gcc; with commensurate porosities and infiltration characteristics.
田間土壤的容重常在1.0到1.4克立方厘米范圍內，且具有均勻的孔隙度和滲透性。Chapter 3 and 4 researches soil depurating function and rule to rainwater by soil columniation penetrating examination on the basis of the two former chapters. and it analyses the influence of soil structure, contamination burthen and penetrating deepness to depurating effect, and discusses contaminate cumulation and renewing ability of soil
第三章和第四章在前兩章的基礎上，通過土壤柱滲透試驗，研究了雨水在土壤中的凈化作用及其規律，分析了土壤結構、污染物負荷、滲透深度對土壤凈化效果的影響，並對污染物的累積和土壤凈化能力的恢復進行了探討。Comparing guelph permeameter with double - rings method in soil saturated hydraulic conductivity measurement
圭夫儀與雙套環測定土壤飽和滲透系數的試驗比較Halophytes are adapted to obtain water from soil water with a higher osmotic pressure than normal soil water, so they need to be able to accumulate a high concentration of salts in their root cells
鹽土植物的滲透壓高於土壤，這樣就可以從土壤中吸收水分，所以它們的根細胞中積累了高濃度的鹽分。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。Field soils often have bulk densities ranging from 1. 0 to 1. 4gcc ; with commensurate porosities and infiltration characteristics
田間土壤的容重常在1 . 0到1 . 4克立方厘米范圍內，且具有均勻的孔隙度和滲透性。It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands
摘要在野外調查、實測的基礎上，採用因子分析、系統聚類分析的方法，根據土壤層水土保持功能的強弱，將黃浦江源區主要植被類型分為4類：落闊林、灌木林為第一類，表現出很強的水土保持功能；茶園、草地、松林為第二類，土壤水土保持功能較強；毛竹林、常綠闊葉林表現出較強的抗蝕性和抗沖性，但滲透性能並不突出，土壤貯水能力也一般，水土保持功能中等，為第三類；裸露地水土保持性能很差，單獨作為第四類，其滲透性、抗蝕性、抗沖性、土壤水庫容都顯著小於其他各樣地。Methods of test for soils for civil engineering purposes - consolidation and permeability tests in hydraulic cells and with pore pressure measurement
土木工程用土壤試驗方法.第6部分:在液壓壓力盒內並且用孔隙壓力測量進行固結和滲透率試驗Standard test method for infiltration rate of soils in field using double - ring infiltrometer
用雙環滲透儀現場測定土壤滲濾速度的標準試驗方法Results showed : ( 1 ) if the proportion of water in the soil is lower than wilting coefficient, and if irrigating water is very little, ( irrigating water is spreading horizontally and vertically ) the relationship between the horizontal width ( x ) and the ? rtical depth ( y ) is remarkable. the equation is y - 0. 02 12x2 + l. 8546x - 17. 88. the related coefficient is r = 0. 9350
結果表明： （ 1 ）在土壤含水量低於萎蔫系數的乾燥條件下，進行微量穴滴灌，滴灌點土壤濕潤面直徑x與最大垂直面滲透深度y呈顯著相關，數學模型為： y = - 0 . 0212x ~ 2 + 1 . 8546x - 17 . 88 ，相關系數r = 0 . 9350 （ 2 ）在微量補水灌溉情況下，只有灌水量大於4000ml /穴，才能使滴灌水滲透到20cm以下土層，達到作物根系集中層，否則水分很難被作物吸收，造成滴灌水的浪費。Description : the soil covers is not sufficient to stop erosion ; nor are the physical structures. the only solution is to find appropriate crops to produce enough residues to favour infiltration
土表覆蓋不足不能夠阻止侵蝕、改變土壤結構。只有尋找合適的、能夠生產足夠殘茬的作物，才有利於水份的滲透。Through this study and according to the law by which the soil moisture content changes with the time, the soil moisture is determined as consumptive, accumulative, fade - away and stabilization periods
對于土壤滲透，一般情況下初滲和穩滲速度是林內林外空地沼澤化跡地， a層b層。Test result shows that as time goes on, permeability effect of crude is strengthened gradually, but the possibility of degradation is less
實驗結果表明：隨著時間的增加，原油在土壤中的滲透作用逐漸加強；而其降解的可能性較小。Abstract : in this article, starting from solute s transport a nd diffusion equati on, aiming at the saturation state of liquid in homogeneous soil of impermeable stratum and on the condition that lots of saturated solute ( e. g. nutriment ) on t op of the soil maintain diffusion, a strict mathematical deduction is carried ou t, and the analytical solution of solute s concentration distribution in homogeneous s o il is given
文摘:從溶質輸移擴散方程出發，針對強透水層上均質土壤的液體飽和狀態，在頂層含有大量飽和溶質（如養分等）維持著滲透擴散的條件下，進行嚴密的數學推證，給出均質土壤中溶質濃度分佈的解析解。The research showed that pam could improve soil structure, and greatly increase the stabilization of soil aggregates, so soil crust development would be decreased. fifthly, soil grain that controls rainfall splash erosion was obtained, the influence of soil clay was very great during initial stages of rainfall. with rainfall going on, soil coarse sand and fine sand would control the splash erosion
五、控制土壤濺蝕的主要土壤粒級：在降雨初期土壤的的粘粒對濺蝕速率的影響較大，隨著降雨歷時的延長，土壤中的細砂和粗砂成為濺蝕速率影響較大的因子；六、對土壤濺蝕影響較大的土壤結構特徵因子：降雨5分鐘時，土壤的滲透系數對濺蝕速率的影響較大，隨著降雨的繼續進行，土壤的團聚度一直對土壤濺蝕速率影響較大。Transportation of total nitrogen is meanly effected by precipitation, irrigation, rate of fertilizer application of agriculture, permeability of soil and thickness of unsaturated zone et al
總氮的遷移主要受到大氣降水、灌溉水、農業施肥量、土壤的滲透性以及包氣帶厚度等因素的影響。Earthworms are used at nutrilite because they help to aerate the soil, speed up decomposition of plant material plowed back into the soil, add natural humus material called castings and break up water channeling through tunnels for dispersion
39健爾力利用蚯蚓幫助疏通土壤的空氣，加快植物分解並重新溶入泥土中，為泥土加入天然的腐植質，同時，蚯蚓在泥土中四處鉆動，有助水分滲透。Acidity and inorganic nitrogen concentrations in soil solution in short - term response to n addition in subtropical forests
鼎湖山森林土壤滲透水酸度和無機氮含量對模擬氮沉降增加的早期響應Despite the same tpyes of soils in this region ( the majority is dry red soil ), different types of soil parent materials / rocks imposed an important influence on soil infiltration due to soil degradation such as the removal of soil material and appearance of gravels / rock fragments. as a result, plant growth is closely related to the types of rocks
盡管該區不同的母質母巖發育形成相同的土壤一簡育干潤富鐵土（過去稱燥紅土） ，但母質母巖特性卻對植被生長有明顯的影響，其主要原因是土層淺薄化、石質粗骨化使土壤受巖性特徵深刻制約，導致不同土壤?母質?母巖系統表現出顯著的滲透性差異。In the hillslope, d ( ), c ( ) and k ( ) of soil water have high spatial correlation. d ( ), c ( ) and k ( ) are significant affected by soil water content, capillary pore and sand content bulk density and non - capillary pore aperture are significantly affected on permeability rate. correlation analysis indicates that it is significant correlate
在坡面上，含水量、毛管孔除和砂粒含量對土壤水的擴散率、比水容量和導水率的影響較大;容重和非毛管孔隙對滲透率的影響較大，相關性檢驗達顯著和極顯著水平。分享友人