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降水
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  precipitation
    AN ANALYSIS OF THE INFLUENCE OF PRECIPITATION ON THE GROWTH OF BAMBOO FOREST
    降水对毛竹林生长的影响分析
短句来源
    Review on the Study of Forest Precipitation Chemistry
    森林降水化学研究综述
短句来源
    The objective of this paper was to determine the relationship s between the behaviors of stable isotope contents (δD) and the patte rns of water transportation in precipitation, spring water and soil water.
    根据2003年夏季测得的四川卧龙自然保护区亚高山暗针叶林地区3个不同群落的降水、土壤水、浅层地下水(泉水)氢稳定同位素含量(δD),分析土壤剖面各层次土壤水氢稳定同位素的变化规律及其与水分迁移的关系。
短句来源
    2) The distri bution pattern of δD for the soil profiles of the 3 communities reflected the change of δD for the precipitation.
    2)A、B、C群落土壤垂直剖面的土壤水δD空间分布形式反映了降水δD的时间变化特征。
短句来源
    The constant val ue of δD may suggest that shallow underground water represent the average conditions of precipitation over the years.
    4)浅层地下水δD受降水δD的直接影响不明显,变化幅度很小,浅层地下水δD的稳定性说明地下水代表了多年降水的平均状态。
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  rainfall
    Modelling on the relationship between rainfall and interception of forest canopy
    林冠截留与大气降水关系的数学模型
短句来源
    Study of rainfall hydrochemical import characteristics in larix gmelini virgin forest
    兴安落叶松原始林区降水化学输入的特征研究
短句来源
    Rainfall Characteristics in Urban Forest of Nanjing
    南京城市森林的降水特征
短句来源
    Forest nutrient input from rainfall in southern Sichuan
    川南地区森林养分输入量与大气降水的关系
短句来源
    The recorded rainfall was 470 mm of which 378.8 mm reached to the ground in the study period. The total evapo-transpiration is 391.4 mm from April to October and this induced soil water loosed by 12.4 mm.
    2002年降水量为470mm,4~10月总的有效降水为378.8mm,总的蒸发散为391.4mm,土壤贮水量减少12.4mm。
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  “降水”译为未确定词的双语例句
    Analysis on Relation of Soil Water and Precipitationof Forest Area in Qilian Mountains
    祁连山林区土壤水分与降水的关系分析
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    The average pH was 5.10 in 2002 and 5.32 in 2003 in Liuzhou.
    柳州降水的平均pH值2002年为5.10,2003年为5.32。
短句来源
    (5) a water-productivity model was established by individual-tree data of biomass M=Mb+Me=0.071xed+0.023xN~1184xP0.082, d-the annual increasing of individual diameter.
    (5)、运用刺槐地上生物量的年积累量的数据,结合试验地降水资料,拟合得到密度水分生产力模型,形式如:M=M_b+M_e=0.071×e~d+0.023×N~(-1.184)×P~(0.0825),d代表单木胸径的年生长量。
短句来源
    The further analysis results of the ratio [SO_4~(2-)] / [NO_3~-] of WO showed the wet deposition of LXH is SO42-acid deposition, while that of LGS and CJT are SO_4~(2-) & NO_3~-mixed acid deposition.
    进一步分析其SO_4~(2-)∶NO_3~-的浓度比值可知,流溪河的降水属于硫酸型酸沉降,而雷公山和蔡家塘的降水则属于混合型酸沉降。
短句来源
    (3) [Ca~(2+)], [Mg~(2+)] of throughfall rooted in the washout action of the atmosphere deposition and the secretion of canopy when raining.
    (3) 3个站点的大气降水经过林冠后,对于[Ca~(2+)]、[Mg~(2+)],以淋洗附着在林冠上的大气沉降物或冠层的分泌物中的Ca~(2+)、Mg~(2+)为主。
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  precipitation
The water-soluble glucan was obtained from Pleurotus florida fruit bodies by hot water extraction, ethanol precipitation, DEAE cellulose dialysis and Sephadex G-75 gel filtration.
      
Preparation and characterization of nanocrystalline ZnO by direct precipitation method
      
Nanocrystalline ZnO was prepared with ZnCl2·2H2O and (NH4)2CO3 as raw materials by direct precipitation method.
      
The ion-exchanger LiAlTiO4 of spinel type was prepared by the common precipitation/hydrothermal crystallization method, and was acid-modified.
      
The precursors of Fe2O3-SiO2 mixed oxides prepared through co-precipitation method were modified by microwave hydrothermal treatment for the first time.
      
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  rainfall
The two sites have similar altitudes, soil types, annual mean rainfall and seasonality of dry and wet.
      
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.
      
When the soil is covered only by litter, both the maximal rainfall amount and intensity in different forest stands are different if there is no water infiltration and runoff from the ground surface.
      
The river runoff had a close correlation with annual rainfall, the size of forest harvesting and regeneration.
      
The reduction of peak flow rates was significant when rainfall peak was higher than 0.8 mm/min, especially for short-term rainfall events.
      
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The present paper deals with the role of the forest litter layer inHuanglun mountain of Shensi.The thickness of litter layer ranged from 3 to9cm.The moisture content of the layer ranged from 70.47 to 137.07 m~3/ha;consequently the surface runoff has been regulated and soil erosion reduced. By the end of growing season,soil watercontent of different vegetationtypes are as fllowing: It is quite clear that the forest vegetation plays an important role inregulating surface runoff.

研究的结果表明,陕北黄龙山森林下枯枝落叶层能防止和减少降水所引起的地表径流和土壤侵蚀,以及释放所含的水分调节空气湿度。在生长期末,辽东栎林2米深土层内含水分4966.7米~3/公顷,山杨林为4233.7米~3/公顷,白桦林1.4米深土层内含水分3915.5米~3/公顷。邻近无林区人工洋槐林2米深土层内含水分2534.8米~3/公顷,人工柠条林为1563.1米~3/公顷,人工沙打旺草地为1194.5米~3/公顷。

In this paper, the writer has found the solutions of the two horizontal dimension waves by use of parameter explaining method with respect to the barotropic vorticity equation of atmospheric motions. It was pointed out that when the air flow was resisted by the forest or mountain areas with forest, the unlike horizontal wind speed shear would be formed on both sides of the central line of the forest. The wind speed shear would result in special precipitation distribution for the forest regions by producing unstable...

In this paper, the writer has found the solutions of the two horizontal dimension waves by use of parameter explaining method with respect to the barotropic vorticity equation of atmospheric motions. It was pointed out that when the air flow was resisted by the forest or mountain areas with forest, the unlike horizontal wind speed shear would be formed on both sides of the central line of the forest. The wind speed shear would result in special precipitation distribution for the forest regions by producing unstable wave energy. When the basic flow was west, for flat forest regions, the rain fall in the north area of the central line was heavier than that in the south area; while in the mountain regions this unstable energy provided by the wind speed shear would produce much more rainy days on the north slope of the mountains than those on the south slope, even though where the moisture is abundant. A check was made against the theory which was derived above by use of the preciptation data of the Xiao Xin An mountains forest to represent the data for flat forest regions located in the eastern low mountain area of the Northeast, and of the Chang Bai Mountains forest for mountain forest regions respectively. The agreement of the theory and observation data was quite satisfactory.

本文从描述大气运动的涡度方程出发,用参数展开法求得二维平面运动的波动解。指出在气流受到森林或林区山地的阻挡时,在林区中心线两侧,可以形成不同类型的水平气流切变,这种气流切变通过产生波动不稳定能量而造成了林区降水的特殊分布。当基本气流为西风气流时,平地林区中心线北侧降水量明显大于南侧;对于山地林区,这种因气流切变造成的波动不稳定能量使得偏北坡降水日数增多,甚至多于水气含量较充沛的偏南坡。用我国小兴安岭林区和长白山林区的降水资料分别作为平地和山地的代表,对上述理论结果作了验证,得出了令人满意的结果。

Because of the resistance of large-area mountainous forest to air flow, there would be vertical wind speed shear formed over the forest, which would be much larger than that produced by the horizontal temperature gradient, and, would play an important role in triggering off the baroclinic wave instability. The influence of the vertical wind speed shear on the wave instability is discussed by the use of a two-layer numerical model. It is poiuted out that this influence is one of the main reasons for the rainfall...

Because of the resistance of large-area mountainous forest to air flow, there would be vertical wind speed shear formed over the forest, which would be much larger than that produced by the horizontal temperature gradient, and, would play an important role in triggering off the baroclinic wave instability. The influence of the vertical wind speed shear on the wave instability is discussed by the use of a two-layer numerical model. It is poiuted out that this influence is one of the main reasons for the rainfall increase going up with the increase of the height of the forest in the mountainous area.

用二层模式下的斜压波模型,讨论了山地林区垂直风速切变对波动不稳定的影响,指出这是山地林区降水随高度增加的主要原因之一。 随着林区透风结构的变异,林区所形成的垂直风速切变是不同的:大范围紧密结构的原始林区形成的切变较强,降水增加较明显;稀疏林区形成的切变较弱,降水增加就不显著。对原始林区的大面积皆伐则导致林区降水减少,生态平衡失调。

 
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