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change of soil character
相关语句
  “change of soil character”译为未确定词的双语例句
     Change of Soil Character after Flooding in Drawdown Area of Three Gorges Reservoir
     三峡水库消落区淹水后土壤性质变化的模拟研究
短句来源
     The conclusion as fllows:(1) The branches setting and bearing plates in DX pile by utilizing the anisotropism of foundation soil, especially the change of soil character in vertical direction, in order to add the ratio of load share beyond the bound of pile.
     (3) DX桩适合承载较大桩顶荷载与减少沉降量,其Q~S曲线明显缓于同直径等截面桩,沉降量也远小于等截面桩。 DX桩岔盘段底部土的竖向抗力既有端阻力的抗压缩特点,又有摩阻力的抗剪切特点,而且更接近于后者。
短句来源
     In the paper, choosing the Binhai saline-alkali soil in Dagang of Tianjin as the research object, through the research about the change of soil character after planting halophyte, ensure the repair function for saline alkaline land by the halophytes rhizosphere under salt alkali stress, and offer the theory evidence for halophyte exploiture and the improving of saline alkaline soil by using the Bio-repairing technology.
     本文以天津大港区的滨海盐土为研究对象,通过研究盐生植物种植后根际土壤的性质变化,来确定盐生植物根际微环境在盐碱胁迫下对盐渍化土壤的修复作用,为开发利用盐生植物和盐碱地的生物修复提供理论依据。
短句来源
  相似匹配句对
     The appearance and character did not change.
     外观性状未见变化。
短句来源
     Smooth the change of soil temperature.
     覆盖处理各土层的土壤温度日较差较小,升、降温度趋势平缓,与对照相比无明显的峰值。
短句来源
     Change
     变化
短句来源
     How to change your character
     人的性格能改变吗
短句来源
     Change Character of Soil Moisture on Soil Microbe and Cucumber Yield in Greenhouse
     温室黄瓜产量和土壤微生物随土壤水分的变化特征研究
短句来源
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The authors study the change of soil characters under casuarina equisetifolia trees, including pH, content of trace elements copper, zinc, boron and molybdenum. The result shows a marked decline in the soil pH values with grouth of casuarina equisetifolia trees, increase in content of available boron and decrease in content of available molybdenum caused by the decline in the soil pH values.

本文研究木麻黄林的生长对林下土壤pH以及有效态微量元素含量的影响。结果表明,林木的生长使林下土壤pH显著下降,土壤pH的下降使土壤有效态硼含量提高,而有效态钼含量却下降。

The isolations of soil microorganism in different developing stages of the Chinese fir plantation were investigated. It was found that the amounts of rhizosphere bacteria and the bacteria in juvenile and mature stands were higher than those of non rhizosphere and the bacteria in medium stands.The amounts of actinomycetes have no significant change among rhizosphere and non rhizosphere soils.The isolations were more abundant in juvenile and maturestands than that in medium stands in which...

The isolations of soil microorganism in different developing stages of the Chinese fir plantation were investigated. It was found that the amounts of rhizosphere bacteria and the bacteria in juvenile and mature stands were higher than those of non rhizosphere and the bacteria in medium stands.The amounts of actinomycetes have no significant change among rhizosphere and non rhizosphere soils.The isolations were more abundant in juvenile and maturestands than that in medium stands in which only Albosporus, Flavus, Griseofuscus were found. The amounts of fungi significantly declined from juvenile to medium stands and increased to mature stands. The percentage of Penicillium in medium rhizosphere soil is higher than those in the juvenile and mature stands. The results suggested that the comparison of the rhizosphere and non rhizosphere soils is useful to show the relationship between the change of soil characters and the Chinese fir growth, controlling soil degradation and improving production of the plantation.

本文通过对杉木人工林不同发育阶段根际土壤和非根际土壤微生物数量及种类的研究,发现根际土壤中的细菌数量明显高于非根际土壤的,中龄杉木林根际土壤及非根际土壤中细菌数量明显低于幼龄林和成熟林,特别是在中龄杉木林根际土壤中枯草芽孢杆菌在细菌中所占比率明显低于幼龄林和成熟林的;无论是在根际还是非根际土壤中,放线菌数量的变化均无明显规律,但在类群组成上,中龄林土壤中,主要类群仅有白色类群、黄色类群和灰褐类群,而幼龄林和成熟林类群较丰富;无论是在根际还是在非根际土壤中,从幼龄到中龄杉木人工林,土壤真菌数量呈明显下降趋势,从中龄林到成熟林,则呈上升趋势,且在种类分布上,杉木中龄林根际土壤中青霉属所占比例明显高于幼龄林和成熟林的;研究结果表明,比较研究根际土壤微生物和非根际土壤微生物对于揭示杉木人工林生长发育和土壤性质变化的关系,防治地力衰退,提高林木产量,是颇有价值的。

Sixty-six samples were collected from the paleosol profile of the Middle Holocene lying in the east of Luochuan,Shaanxi Province.The gasometric method,a magnetic susceptibility meter,a grain size meter and a microscope are used to analize the CaCO_(3) content and grain size,the magnetic susceptibility and the microstructure of these paleosol samples.The grain size composition shows that paleosol in the Middle Holocene is divided into two layers,between which a thin loess layer is embedded.In the lower paleosol...

Sixty-six samples were collected from the paleosol profile of the Middle Holocene lying in the east of Luochuan,Shaanxi Province.The gasometric method,a magnetic susceptibility meter,a grain size meter and a microscope are used to analize the CaCO_(3) content and grain size,the magnetic susceptibility and the microstructure of these paleosol samples.The grain size composition shows that paleosol in the Middle Holocene is divided into two layers,between which a thin loess layer is embedded.In the lower paleosol layer which was formed in early Middle Holocene,there is less content of CaCO_(3) with average of 0.34%,showing an obvious character of leached soil.The content of clay grain size less than 0.005mm is 12% more than in the Malan loess.The optical clay films in the clay grouting horizon(Bt horizon)developed to a certain extent and a little lumpy clay films can be found,showing that clay grains were removed and illuviated in this paleosol layer,which indicates that soil formation of paleosol of early Middle Holocene was stronger than that of the contemporary soil in the area.Paleosol of this layer is thus defined as luvic cinnamon soil,deposited during a period with enhanced summer monsoon,which resulted in a warmer and moister climate than at present,with the mean annual precipitation of at least 100mm more than at present.In the upper paleosol layer of Middle Holocene,the average CaCO_(3) content is 2.5%.Illuvial clay films was poorly developed but sedentary clay was developed.The development degree of soil of the upper layer is lower than that of the lower layer,but is still higher than that of the contemporary soil in the area.The soil type of the upper layer is orthic cinnamon soil developed during late Middle Holocene,a period with warmer and moister climate than that of today.The middle Middle Holocene(about 6000~5000aB.P.) is an environmental deterioration stage with a cold and dry climate with strong dust storm.The current study is a good example on revealing the correlation between the change of soil characters and climate change in Middle Holocene in the Loess Plateau.

在洛川城东全新世中期古土壤剖面中采集了66块样品,利用气量法、磁化率测定、颗粒分析和显微镜观察方法,对土壤层中的CaCO3含量、磁化率、颗粒成分、微结构进行了分析和鉴定。粒度成分显示洛川中全新世土壤可分为两层,中间为薄层黄土层。实验资料表明,洛川中全新世早期土壤CaCO3含量低,平均为0.34%,具有显著淋溶土壤的特征;小于0.005mm的粘粒含量比马兰黄土高约12%。粘化层(B t层)中光性粘土胶膜有一定的发育,而且可见少量块状粘土胶膜存在,表明该层古土壤具有粘粒迁移和粘粒淀积的特征,指示中全新世早期发生的成壤作用比洛川现今成壤作用显著强。由此可以确定,中全新世早期土壤类型应为淋溶褐土,当时夏季风活动增强,气候比现今明显温湿,年平均降水量至少比现今多100mm余。中全新世晚期古土壤CaCO3平均含量为2.5%,淀积型粘土胶膜发育差,以残积粘土为主。中全新世晚期古土壤比早期土壤发育弱,但比该区现代土壤发育强,土壤类型应为典型褐土,当时气候也比现代温湿。中全新世中期6000~5000年间为气候冷干和沙尘暴活动加强的环境恶化期。研究结果对揭示黄土高原中部全新世中期土壤性质和气候变化具有重要意义。

 
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