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slope gradient     
相关语句
  坡度
     STUDY ON RELATIONSHIPS BETWEEN SLOPE GRADIENT AND SOIL LOSS USING ~(137)Cs TRACER
     ~(137)Cs示踪法研究坡度与土壤流失的关系
短句来源
     This study was conducted to analysis hydro-dynamic mechanism of soil detachment process for original soil core in loess region under the large range of flow discharge (0.5~2.0 L/s) and slope gradient (8.8%~46.6%).
     利用变坡实验水槽,在较大流量(0.5~2.0L/s)和坡度(8.8%~46.6%)范围内,系统研究了黄土区原状土壤分离过程的水动力学机理。
短句来源
     S=0.149×1.1~B L=h·(1-cosB)/63.8sinB The formula of topographic factor can be written as: LS=0.00233×1.1~B·h(1-cosB)/sinB where L——slope length factor; S——slope gradient factor; LS——topographic factor;
     本文根据长江三峡地区的调查材料,导出了求取坡度因子和坡长因子值的公式,它们分别是: S=0.149·1.1~B L=h·(1-cosB)/63.8sinB 地形因子值的求取公式就写成;
短句来源
     . The changing tendency of the runoff Reynold's number , flow velocity ,runoffsediment concentration and sediment transport rate versus time was parabola curve in theexperiments, the critical slope gradient was about 21 ?
     当放水流量相同时,坡面径流雷诺数Re、坡面径流平均流速、坡面径流平均剪切力、坡面径流能耗、坡面径流含沙量和坡面径流输沙率均随试验坡度的增大呈抛物线形式变化,临界坡度出现在21°左右。
短句来源
     In the range of 10 and 30 degrees, planting density was not sensitive to slope gradient.
     坡度小于10°时,适宜造林密度对坡度反应敏感,在10°~30°时,适宜盖度对坡度反应不敏感。
短句来源
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  地形坡度
     The results showed that the δ~(13)C value of the surface soil was significantly correlated to slope gradient,clay content,soil moisture and pH.
     结果表明:表层土壤δ13C值与地形坡度、土壤粘粒含量、土壤含水量、pH值都显著相关。
短句来源
     THE RELATIONSHIP BETWEEN THE SHEARING STRENGTH OF CLAY IN SLIDED ZONE AND SLOPE GRADIENT
     工程滑坡滑带土抗剪强度与地形坡度的关系
短句来源
     Generally, the total N, total P, total K, organic matter content and pH-value of soil were more important, as compared with elevation, size of gap and slope gradient of the sample plot.
     相对而言,土壤全N、全P、全K、有机质含量及其pH值是比较关键的环境因子; 而海拔高度和林自大小及地形坡度却比较次要。
短句来源
     8 disaster factors of soil erosion have been defined: surface material, landform and slope gradient, cover-degree, topographic, 30min rainfall intensity, engineering measure grade of conservation of water-soil, irregular subsidence and volume weight.
     确定了土壤水性的8个致灾因子:30而n暴雨强度、地表物质、地形坡度、植被搜盖度、植被类型、工程水土保持措施等级、容重和非均匀沉降.
短句来源
     The slope(β) of linear regression between isotopic composition and SOC concentration was positively related to slope gradient of the landscape and negatively related to clay content,indicating that β could be used as a useful index to describe mineralization of SOC at the erosion position.
     侵蚀部位土壤δ13C值与SOC含量线性拟合的倾斜角β与地形坡度成正相关,与粘粒含量成负相关,是反映SOC周转的一个良好指标。
短句来源
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  坡面坡度
     The results showed that slope runoff head loss was related to slope gradient,forest density,net rainfall intensity and slope length. The relationship of water head loss with the distance among trees and the diameter at the ground of tree was E∝(D/b)~(4/3).
     结果表明,坡面径流水头损失与坡面坡度、林木密度、净雨强、坡长等有关,水头损失与林木间距(b)和树木地径(D)间的关系为:E∝(D/b)4/3;
短句来源
     The flow velocity, resistance coefficient and energy consumption ofsheet flow on steep smooth slope increased with the flow depth( flow discharge) and slopegradient, while there was little effect of slope gradient on the Darcy-Weisbach resistancecoefficient.
     研究还表明,陡坡光滑坡面上的簿层水流的流速、阻力系数、能量消耗都随水深(放水流量)和坡面坡度的增大而增大,坡度对阻力系数的影响不明显。
短句来源
     It should bestressed that slope gradient has dominant impact on the development trend of flow resistance.
     强调指出坡面坡度对水流阻力的变化趋势有着决定性的影响作用。
短句来源
     By choosing precipitation intensity, runoff intensity, soil particle diameter, thickness of soil layer, slope gradient, surface vegetation of 17 closed basins in a karst mountain region of Guizhou province as parameters, SPSS software and Multivariate Statistical Analysis are employed to build the dynamic remote sensing information model of soil and water loss to give a predication of the soil and water loss of Guizhou province.
     选择贵州省喀斯特山区17个闭合流域的降水强度和径流强度、土壤颗粒粒径与土层厚度、坡面坡度、地面植被的覆盖度等自然因素作为参数,借助于SPSS软件,运用多元统计学的方法,建立了水土流失的动力遥感信息模型,对贵州省喀斯特山区水土流失进行了预测。
短句来源
     The results show that the horizontal displacement of extrusion wall caused by side-pressure of cushion rolling is very slight, and the upper-reach slope gradient caused by cushion rolling can satisfy design and faceplate construction requirements.
     研究结果表明 ,由垫层料侧压力所引起的挤压墙水平位移很小 ,由挤压墙形成的上游坡面坡度能满足设计要求和面板施工要求
短句来源
  “slope gradient”译为未确定词的双语例句
     In both therapeutic A and B groups the behavioral scores and slope gradient were found significantly larger at 12 days than 1 day P < 0.05 and that of traumatic group P < 0.05.
     治疗A 和B 组12d 行为评分及斜板角度值均显著大于1d 时(P <0.05),且显著大于损伤组P <0.05)。
短句来源
     (7)When the slope gradient more than 20 , the placement of the instruments case vastness different in the result measured by double ring and Hood, at about 10° it can only have some effect, when at about 5 ° it seen no effect.
     ⑦坡面倾斜角度≥20°时,仪器的放置方式对双环法和Hood入渗仪法测定结果影响较大,而在在≤10°的坡面倾斜角度条件下仪器的放置方式对测定结果的影响较小,≤5°坡面倾斜角条件下仪器放置方式对测定结果的影响可以忽略。
短句来源
     The soil erosion rate were positively related to the slope gradient of the land, and it increased 120 t/(km 2·a) with slope gradient increased 1°.
     土壤侵蚀量与植被覆盖度呈显著的负指数相关 ,当植被覆盖度 >6 0 %时 ,土壤侵蚀量在 2 0 0 t/ (km2 · a)以下 ;
短句来源
     Mathematical Model of Identical Slope Gradient Surface and Its Performance with MATLAB
     同坡曲面的数学模型及MATLAB实现
短句来源
     An estimate model was made with the middle and young artificial forest of Pinus elliottii in Xiajiang county as a population, the successively-surveyed sample plots as its samples, the slope gradient and aspect, the forest ages and the number of trees as its delarative variables, the ingrowth average diameters as its datum variables.
     以峡江县湿地松人工林中幼龄林为总体,以连清样地为样本,用坡向坡位(以数字化度量)、林龄、样地株数为说明变量,以样地立木进界平均胸径为基准变量,建立预估模型。
短句来源
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  slope gradient
A series of two-dimensional simulations show the effects upon the drainage flow of changing slope gradient at the mountain-plain interface.
      
The objective of this study was to determine whether grid sampling efficiency can be improved using cokriging estimates with slope gradient as a secondary variable, which is easily obtained from high-resolution digital elevation models.
      
Soil Phosphorus and Potassium Mapping Using a Spatial Correlation Model Incorporating Terrain Slope Gradient
      
The slope gradient for eachroof was calculated in order to account for slopein the calculation of roof areas.
      
The soils of the investigated area were characterized by a relatively low slope gradient, a rigid framework of gravel and a homogeneous physico-chemical behaviour, due to the predominance of Ca among exchangeable bases.
      
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In this paper the feature of transmission of direct light in plantation of Cunninghamia lanceolata in Huitong county was described and discussed, according to the theoretical distribution and observational data in 1982—1988. The results obtained are summarized follows:1. The direct radiant flux on the surface of canopy at southern slope is larger than that at eastern and western slope, and it is smallest at northern slope.2. The slope gradient has a great influnce on direct radiant flux on forest floor....

In this paper the feature of transmission of direct light in plantation of Cunninghamia lanceolata in Huitong county was described and discussed, according to the theoretical distribution and observational data in 1982—1988. The results obtained are summarized follows:1. The direct radiant flux on the surface of canopy at southern slope is larger than that at eastern and western slope, and it is smallest at northern slope.2. The slope gradient has a great influnce on direct radiant flux on forest floor. It decreases as the slope gradient increases, except southern slope. The decrement of direct radiant flux is largest at northern slope. It shows complicated feature at southern slope. In winter half year, it increases as the slope gradient. But in summer half year, it is reversed.3. The transmissivity of direct radiant or it's flux on the forest floor decreases, under an exponential manner, as the leaf area index increases. The transmissivity of summer half year is larger than winter half year.

本文根据1982—1983年实际观测资料,引用林冠中光分布的理论模式和坡地上直射光到达量的计算公式,对湖南省会同林区不同坡地上杉木人工林中直射光的透过特征进行了分析和讨论。林冠作用面直射光到达量南坡最大,其次是西坡和东坡,北坡最小。坡度对直射光的影响,除南坡外,直射光到达量是随着坡度的增加而减小,北坡递减率最大。南坡直射光的变化规律比较复杂,冬半年随坡度增加而增大,夏半年又出现相反的规律。透过林冠林地直射光到达量随叶面积系数增加而减小,呈指数衰减形式。当叶面积系数大于4时,直射光变化比较缓慢。直射光的透过率随着叶面积系数增大而减小,夏半年大于冬半年。

Erosion and loss of soil are related and distinct each other. Amount of soil loss greatly depends on locality designed. The soil loss on slope, in some conditions, is determined mainly by slope gradient and slope length. The gradient and length of slope are varied everywhere in the reoded mountain and hill regions Therefore, it is difficult to get the value of topographic factor of the USLE, This paper derived the formula from data of the Three Gorges, by which the value of the gradient...

Erosion and loss of soil are related and distinct each other. Amount of soil loss greatly depends on locality designed. The soil loss on slope, in some conditions, is determined mainly by slope gradient and slope length. The gradient and length of slope are varied everywhere in the reoded mountain and hill regions Therefore, it is difficult to get the value of topographic factor of the USLE, This paper derived the formula from data of the Three Gorges, by which the value of the gradient factor and the length factor could be calculated. The formulas are as following. S=0.149×1.1~B L=h·(1-cosB)/63.8sinB The formula of topographic factor can be written as: LS=0.00233×1.1~B·h(1-cosB)/sinB where L——slope length factor; S——slope gradient factor; LS——topographic factor; h——relative average altitude; B——average slope gradient. According to the formulas above, the value of topographic factor in the Three Gorges could be gotten.

土壤的侵蚀和流失既有联系又有区别,土壤的流失更具有地域性。土壤坡面的流失量,在其它条件相同时,主要由坡度和坡长确定。坡度和坡长在山丘流失区随处变化,因此,坡度坡长因子值的确定也很困难。本文根据长江三峡地区的调查材料,导出了求取坡度因子和坡长因子值的公式,它们分别是: S=0.149·1.1~B L=h·(1-cosB)/63.8sinB 地形因子值的求取公式就写成; LS=0.00233·1.1~B·h(1-cosB)/sinB 根据这个公式就可以求得长江三峡区的地形因子值。

Soil erosion is closely related to meteorological , topographic , geological and vegetative factors . It is introduced in this paper that relationships between soil erosion and some natural elements such as precipitation , rainfall rate , slope gradient , vegetation and soil function . The laws for evolution of layer sheet erosion , splash erosion, gully erosion , gravity erosion and wind erosion processes are discussed and the scheme for controlling soil erosion is presented.

土壤侵蚀与气象、地形、地质、植被因素密切相关。本文介绍了黑龙江黑土区降雨量、雨强、坡度、坡长、植被、土壤性能与土壤侵蚀的关系,论述了层状面蚀、雨滴溅蚀、沟壑侵蚀、重力侵蚀、风蚀的演变规律,并提出了防治土壤侵蚀的对策。

 
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