sediment 泥沙(5110) 底泥(751) 沉积(2374)   泥沙     Results showed that sediment yielded from slope chiefly come from arable land and bare land located at slope,and the quantity of sediment yielded from arable land located at the slope above 25°accounted for about 50% of the total sediment yielded from slope.     结果表明,当地坡面流失的泥沙主要来源于坡耕地和裸地,25°以上陡坡耕地侵蚀的泥沙量,约占坡面产沙总量的50%。 短句来源     Land cover types had significant effects on sediment yield of slope. At the same time,the amount of sediment could be decreased 71.05%-95.58% if the forest cover rate reached 70%-80%.     土地覆被状况对于泥沙的产生有重要影响,同等条件下,若林地土地覆被率达到70%~80%,则能够减少71.05%~95.58%的泥沙产生量。 短句来源     The contents of clay,silt and nutrient of sediment decreased approximately with time change,and the direct correlations were close among the contents of clay and silt and the contents of nutrient.     流失泥沙细小颗粒含量与养分含量随时间基本都呈降低的变化趋势,并且细小颗粒含量与携带流失的养分含量有显著甚至极显著的正相关性; 短句来源     Clay enrichment and nutrient enrichment occurred in sediment,but the enrichment ratio was different: Clay was 1.23 in watermelon land and 1.20 in rape land,total nitrogen and rapidly available phosphorus was higher than 1.3,and total phosphorus and hydrolysable nitrogen was 1.1~1.3.     流失泥沙具有富集粘粒和富集养分的特性,油菜地与西瓜地粘粒富集率分别为1.23和1.20,两样地全氮与速效磷的富集率都在1.3以上,而全磷和水解氮富集率基本处在1.1~1.3之间。 短句来源     Results show that the LOC content in soil ranged between 0.15 g/kg and 0.34 g/kg,and was between 0.28 g/kg and 2.92 g/kg in sediment.     结果表明,土壤和泥沙中活性有机碳含量分别在0.15～0.34g/kg和0.28～2.92g/kg之间; 短句来源 更多          底泥     Compound fertilizer from chemical fertilizers with sediment of the West Lake and its application in vegetable     底泥化肥复混肥的加工及其在蔬菜上的应用效果 短句来源     The volumetric weight of the sediment could be reduced, and its porosity could be improved while the sediment was mixed with the natural soil by the ratio of 1∶1 or 1∶ 2 in bulk, or the straw, 5% the bulk of the correspondinging sediment, CaO, 0.5% the bulk of that, the peat, 6.7% the bulk of that was added sequentially again.     将底泥与土壤按体积比1∶1或1∶2混合后,依次增施相应底泥体积5%的秸秆、0.5%的石灰、6.7%的草炭均能有效地降低底泥的容重,提高孔隙度,改善其通透性。 短句来源     The plot experiments were conducted to study the effects of land utilization of municipal sludge and lake sediment on nutrients and heavy metals(Cd,Pb) in soil-plant system.     采用田间小区试验,探讨了城市污泥与湖泊底泥土地利用对土壤-植物系统中养分及重金属Cd、Pb的影响。 结果表明,城市污泥与湖泊底泥能有效增加土壤养分含量; 短句来源     Effect of Humic Acid on Ionic Form Distribution and Activity of Lead and Cadmium in Pond Sediment     腐殖酸对池塘底泥中铅、镉的离子形态分布及其活性的影响 短句来源     The analysis results for the properties of physics and chemistry of the sediment were as followings: the structure of the sediment was denser, and the permeability was worse because its volumetric weight was higher and its porosity was lower.     对底泥理化性状的分析结果显示:疏浚底泥容重较高,孔隙度较低,结构较为密实、通透性能较差; 短句来源 更多          沉积     Distribution Characteristics of ~(137) Cs in Erosion Sediment in Red Soil Region     红壤侵蚀沉积点~(137)Cs垂直剖面分布特征 短句来源     STUDY ON EROSION AND SEDIMENT ALONG THE BARE SLOPING SURFACT WITH REE METHOD     用稀土元素示踪方法研究裸露坡面沿程侵蚀与沉积 短句来源     The hillslope erosion processes include soil separation, sediment transport and sediment precipitate, which these three process result from the rainfall splash erosion and runoff erosion.     坡面侵蚀过程包括降雨溅击和径流冲刷引起的土壤分离、泥沙输移和沉积3大过程，研究和分析这些过程发生、发展的水力、土壤、地形条件以及各过程间相互转化、相互影响的机理，是建立土壤侵蚀物理模型的前提条件。 短句来源     The wind erosion sediment of the plough land was 2.21 g/m~2 , that of grassland was 0.31 g/m~2 , that of woodland was 0.28 g/m~2 . The sand transporting quantity of the plough land was the most, the grassland's erosion was ewer and the woodland's erosion was the least.     试验结果表明:不同植被下的土壤风蚀沉积量,耕翻地最大为2.21g/m~2,自然草地次之为0.31g/m~2,林地最小为0.28g/m~2。 短句来源     (4)Daily soil erosion sediment was found to significantly and positively correlate with daily average wind velocity;     然而 ,土壤日风蚀沉积量与日平均风速呈高度正相关 ; 同样 ,土壤日风蚀沉积量与日可蚀风持续时数亦呈高度正相关。 短句来源 更多          “sediment”译为未确定词的双语例句     Sediment Yield and Decision-making Support System for Soil and Water Conservation in Watershed with GIS     基于GIS的流域产沙及水土保持决策支持系统研究 短句来源     Study on the Relationship between Soil Erosion Rate and Sediment Yield in Small Watershed by ～(137)Cs and ～(210)Pb_(ex) Tracing Method     小流域侵蚀速率与产沙关系的～（137）Cs、～（210）Pb_（ex）示踪研究 短句来源     Study on Separated Evaluation or Water and Sediment Reduction Benefits Through Soil Conservation Measures     水土保持措施减水减沙效果分离评估研究 短句来源     Study on ￣(137)Cs Method Used in soil Erosion and sediment Delivery on Sloping Fields in Gully Area on Loessal Plateau     黄土高原沟壑区谷坡农地侵蚀及产沙的~（137）Cs法研究 短句来源     Water and Sediment Characteristics of Zuli River and Analysis of Benefits of Sediment Reduction of WaterConservancy and Soil Conservation Measures     祖厉河水沙特性及水利、水土保持措施减沙效益分析 短句来源 更多        查询“sediment”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   sediment The variables studied were transport of sand, underlying surface roughness, windblown sediment, wind-sand flow structure, soil mechanical composition and amount of wind erosion. 例句来源       At a height of 0-20 cm, the height increased while the sediment discharge percent of sand flux decreased; there were significant differences in the sand flow formation under different land-use types. 例句来源       4) The amounts of wind erosion and sand sediment were different among different land-use types. 例句来源       Effect of forest vegetation on runoff and sediment production in sloping lands of Loess area 例句来源       At the same time, better correlative relationship between runoff and sediment production and rainfall and rainfall intensity were testified by multiple regression, but the correlation decreased gradually with the increase of canopy density of forest. 例句来源       更多                    In modelling of sediment yields,the effects of time-variation of geomorphotgic and geologic factors on soil erosion were generally neglected. Errors of this neglection affect-ed the sediment yield models obviously. In this paper,a revised universal soil erosion e-quation was selected, the effects of errors of this neglection on it were tested by non-parametric hypothetical test method of Kolmogorov-Smirnov for a 22-year period within 21 catchments of the middle Huanghe River region,and the resul...             采用非参数假设检验方法,对年产沙模数估计方程中下垫面因素的时变影响作定性分析,结果表明,对于一般流域,如果没有人类活动或自然灾害破坏导致下垫面条件的突变,下垫面因素对产沙的影响可看作是时不变的. 文摘来源          In order to investigate the rule of soil erosion and sediment transportation in basins of the upper Yangtze river,the Lin stream,a tributary of the middle Jialing river,has been selected as a typical basin to be analysed and studied.Based on the data of rainfall,\runoff and sediment transportation obtained from site investigation,field test and observed from 1960 to 1991,equations for calculating the sediment amount and the maximum sediment discharge have been established respectivel...             为了探讨长江上游流域水土流失及泥沙输移规律，选取嘉陵江中游的支流李子溪为典型流域进行了分析研究。在实地调查、野外测验及应用１９６０年～１９９１年实测降雨、径流、输沙资料的基础上，利用单因子相关分析和多因子回归分析，分别建立了输沙量、最大输沙率计算方程。在此基础上，参照径流瞬时单位线原理，以线性时不变系统为基础，建立输沙瞬时单位线模型。通过输沙单位线与时段净侵蚀量的卷积得到流域出口断面的输沙率过程，最后由其它流域实测资料对模型进行了验证。 文摘来源          According to the theory of conceptural model of coupled simulation.the paper applies thecoupled model of runoff and sediment of a basin into the evaluation of water and sediment reduction benefits through soil conservation measures. First of all,It devides various measures intotype of water reduction (or type of storing water and retaining sediment) and type of vegetation.then use the model to evaluate separately the benefits of water and sediment reduction caused byusing the two kin...             根据耦合模拟概念性模型理论，把流域水流泥沙耦合模型应用于水土保持措施减水减沙效果评估之中。首先把各类措施划分为减水型（或蓄水拦泥型）和植被型，然后利用模型对这两种类型措施引起的减水、减沙效果及总的减水减沙效果分离评估。通过对黑矾沟流域水土保持措施效果进行评估，其结果表明，该方法较合理，分高评估的各项结果也较符合实际情况。其中，计算的次洪产流量和产沙模数与实测值对比，其总绝对误差的相对值分别为２０．１％和２０．４％。 文摘来源   << 更多相关文摘         相关查询: sediment handling sediment contamination sediment classification sediment analyzer serious sediment graded sediment sediment processes common sediment sediment profiles sediment modulus sediment computation terrace sediment  对查询结果不满意

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