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eluviated相关的网络例句

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During the period of the mineralizing, the surroundings of studying are is continental facies. The aggraded materials who have experienced long time efflorescence and leaching have corrosion and eluviated the alkali metals, alkaline earth, silicon, iron and so on. The schwer l Al2O3 is keeped down. So this condition made the enrichment of the aluminum and the bauxite is formed.

铝土矿成矿时期,研究区为陆相环境,已沉积物质在炎热潮湿的气候条件下经历了长期的风化淋滤作用,将碱金属、碱土金属、硅、铁等溶蚀淋滤掉,难溶的Al2O3残留下来,造成铝的富集,形成了铝土矿。

Comparing with the parent rock, the element of SiO2 and Al2O3 have been eluviated. In addition, there is the trend of increasingly strong weathering from south to north.

化学风化作用具有由南向北增强趋势;剖面中具有中下层风化程度略高于表层的趋势。

In abandoned land and peripheral desert of oasis, influenced by irrigation of oasis, groundwater table has been raised above the critical depth.Because the soil salt cannot be eluviated by irrigation water and precipitation, salt brought to the upper layers of soils by strong evaporation is especially concentrated on soil surface.

绿洲内的撂荒地和靠近绿洲的荒漠草地受绿洲内部灌溉过程的影响,地下水位升高,超过了地下水的临界深度,同时又因为缺少灌溉的反复淋洗,在强烈的蒸发作用下,盐分的表聚现象十分明显,而且整个剖面内盐分的含量都较高,土壤的盐渍化现象非常严重。

Mine solid wastes ; eluviated matter ; organic contaminant ; soil pollution ; groundwater pollution

矿业固废;淋溶物;有机污染物;土壤污染;地下水污染

When the poisonous pesticide is degraded, it is likely pollute soil and water. If the underground water level is within 6 meters to the ground, the eluviated pesticide may pollute the underground water. Thus we have to be cautious when using pesticide

一切的化合物都具有毒素,当施药隐埋后应考虑到农药对土壤、水体降解过程中,药剂施用毒土形成后的向下淋溶径流降解,当地下水位距地面6米范围内时,向下淋溶径流降解的农药就有可能对地下水造成污染,故所应持极其注重态度对待。

Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and,or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron,aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil.

传统上可将土壤分成A、B、C三层。A层是位於最上面的一层,含有腐殖质,许多矿物质在该层中沥滤和淋溶。B层是个沉积区,富集了大量的来自A层的粘土矿物质和铁,铝氧化物。C层是现在土壤的母质层,也可能是风化的岩石、来自冰河或冲积层的物质、或早期土壤遗留下来的。

Through analysis of variance, the best mass ratio of different coating material matching is found out: It is the best matching when the mass ratioof red clay membrane urea is 5:7,which can lengthen the eluviationing time for 11 days, reduce the nitrogen eluviationing loss by 16.12%; the amount of the clay quality has no use to lengthen the eluviationing time and the result is not obvious; when the quality ratio of urea and gypsum is 5:8,it can lengthen the eluviationing time for 8 days, reduce the nitrogen eluviationing loss by 23.86%;when the quality ratio of urea and gypsum is 5:7,it can lengthen the eluviationing time for 30 days, reduce the nitrogen eluviationing loss by 16.58% when the contrast urea N is all eluviated out ; it is the optimum matching association; When the quality ratio of the urea and the sulfur is 5:6, which is a optimum proportion ,it can l

根据对淋溶时间、经济成本等的对比,经过方差分析,找出了不同包裹材料的最佳质量比的搭配组合:红胶泥包膜尿素的质量比是5:7时最好,可以延长淋溶时间11天,减少氮素淋溶损失16.12%;粘土质量的多少对延长尿素的释放时间作用不大,效果不明显;石膏和尿素两者的最佳质量比是5:8时,可以延长淋溶时间8天,减少23.86%的氮素淋溶损失;硼砂和尿素的质量比是5:7可以延长淋溶时间30天,当对照尿素N素全部淋出时,减少16.58%的氮素淋出,是最优

On the basis of solute transport theory, the coal gangue eluviated in Xinqiu in Fuxin coal miming area was studied for the pollution of groundwater. The mechanism of coal gangue eluviated in the aquifer was analyzed. A coupled numerical model was developed with convection、sorption and dissolve、disintegration for simulating the leachate transport in groundwater. The model was discreted by using a Gelarkin finite-element method and a Picard iteration scheme, and the process of coal gangue leachate was presented, which predict the temporal and spatial distribution features of contaminant concentration. The result indicates that the contaminated plume is continually extended as time increases, and the vertical diffusion is more abvious.

以溶质运移理论为基础,针对阜新市新邱露天煤矿煤矸石淋滤液对地下水污染实际情况,分析了煤矸石渗滤液在含水层中运移的规律,在综合考虑对流扩散、吸附解吸、生物降解条件下建立了淋滤液在地下水中运移的耦合动力学数学模型,采用Galerkin有限元方法和Picard迭代法相结合对耦合模型进行了离散,模拟了淋溶液对地下水污染的动态过程,预测了污染浓度的时空分布特征,并结合实际观测数据进行对比。

The results show that 42.86% topsoil samples are polluted by Cadmium, soil synthesis pollution index is moderate, Cadmium pollution degree of topsoil correlate with the environment of sampling sites. The results also show that exchangeable Cd, carbonate-bound Cd, organic-bound Cd and residual Cd are found in all soil samples except for Fe-Mn oxide-bound Cd. Furthermore, the concentration of exchangeable Cd and carbonate-bound Cd, both which have high biological validity, is high. Humus has a certain correlation with exchangeable Cd, organic-bound Cd and residual Cd, and has no obvious correlation with other chemical speciations. Any chemical speciation of Cd has no obvious correlation with pH and total Fe of soil samples. Cadmium in topsoil can be eluviated by acid solution, the quantity of Cadmium eluviated by redistilled water is little. With the rise of pH of eluviating solution, eluviated Cadmium quantity decrease. For the same soil sample, the lower pH value of eluviating solution is, the more fast the Cadmium is eluviated, and the more thequantity of Cadmium is eluviated.

研究结果表明:成都市表生土壤样中有42.86%受镉污染,镉综合污染水平达中度污染,成都市表生土壤镉污染程度与采样点周围环境表现出一定的相关性;除铁锰氧化物结合态镉在部分土壤样中未检出外,所有土壤样均含有可交换态镉、碳酸盐结合态镉、有机结合态镉、残留态镉,且生物有效性较高的可交换态镉和碳酸盐结合态镉占总镉量比例较高;成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性,与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著;各形态镉与土壤pH值和全铁的相关性均不显著;土壤中的镉可被酸溶液淋出,重蒸馏水淋出镉量十分微小;随着淋滤液pH值的升高,土壤样的镉淋出量下降,且0~5小时时段的镉淋出量占镉总淋出量比例下降,5~30小时时段的镉淋出量占镉总淋出量的比例上升,对同一土壤样而言,酸度大的淋滤液比酸度小的淋滤液淋出镉速度更快,淋出镉量更大。

Bidentis were studied by adopting indoor bioassay. The results showed that the volatile matter of F. bidentis had not allelopathy to four receptor plants. The eluviated matter inhibited seedling growth of cotton obviously, the inhibition ratio of root and stem were 6.29% and 10.42% respectively. The aqueous extract of litterfall and root exudates had different inhibition to four receptor plants, The synthesis effectof all treatments was significantly greater than eluviated matter treatment except for B3 of the aqueous extract of root exudates, such as the synthesis effect of all treatments (A1, A2, A3, B1, B2, B3 and eluviation) were 44.74, 29.37, 14.5, 31.54, 16.52, 3.55, 1.48 respectively.

结果显示:黄顶菊自然挥发物对受体植物不表现化感作用;黄顶菊淋溶物对棉花幼苗生长表现出明显的抑制作用,对棉花幼苗高度和根长的抑制率分别为6.29%和10.42%;黄顶菊枯落物浸提液和根系分泌物浸提液对4种受体植物均表现出不同程度的抑制作用,除了黄顶菊根系分泌物浸提液 B3处理外,其它处理的综合效应均显著大于淋溶物处理,如黄顶菊枯落物浸提液( A1、 A2、 A3)、根系分泌物浸提液( B1、 B2、 B3)以及淋溶物等各处理对受体植物的综合效应分别为44.74、29.37、14.5、31.54、16.52、3.55、1.48。

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