查询词典 surface of the soil

The results showed that the heavy metals in various mediums were mainly Cu and Ni, and those concentrations were, in the descending order, in ditch, tailings, slagheap and cultivated soil. In the tailings and the sludge of the ditch, the concentrations of Ni were obviously higher than those of Cu. Whereas, in the soil and the weathering and atmospheric deposition of the waste slagheap surface, the concentrations of Cu were higher than those of Ni. This means that in the first two mediums, Cu and Ni mainly originated from the tailings, while in the latter two mediums, Cu and Ni mainly came from the atmospheric deposition of airborne particles of the smelting. Cr and Zn were mainly in residual fraction, Cu was mainly in oxidizable and residual fraction.

结果表明：不同区域环境中重金属呈现不同程度累积，其中以Cu、Ni最为显著，含量由高到低依次为尾矿坝排污沟＞尾矿坝＞废渣堆＞农田土壤；尾矿砂和沉积物中重金属分布以Ni含量显著高于Cu含量为特征；而农田土壤和风化物及降尘中重金属分布以Cu含量高于Ni含量为特征，前者Cu、Ni主要来源于尾矿，后者与冶炼烟尘排放有很大关系；样品中除Cr、Zn以残渣态为主外，Cu、Ni、Pb化学形态分布有较大差异，Cu以可氧化态和残渣态为主，Ni以可还原态为主，其次为弱酸提取态，Pb以可还原态为主，其次为残渣态。

Prop root An adventitious root, arising from one of the lower nodes of the stem close to the soil surface, found at the junction of stem and soil that grows dowm to the ground and gives additional support to the stem, as seen in maize.

支柱根：一种不定根，起源于接近土壤表面的茎上位置较低的节部。向地生长，插入土壤，并对茎提供一定的支撑。如玉米的支柱根很常见。

The amount of pesticide and herbcide applied was less, the pure quantity was only 1. 9kg/ha which is about 40％ of the Jinlin Province's average. In farmland, There are 26700ha of solonetz and solonchak, and 289700ha of salinized soil with the high content of salts. The salt content in the surface is 1％-2％ in soda meadow solonetz, 1％-4％ in sulfate meadow solonetz, below 0.7％ in meadow solonchak generally, and below 1％ in salinized soil. The runoff and the return flow from above lands have high content of salt and high output load of the soluble salt.

吉林西部耕地中有2.67万hm〓的盐土、碱土和28.97万hm〓的盐碱化土地，这些盐土、碱土及盐碱化土地中均含有较高的盐分，其中苏打草甸盐土表层含盐量1％～2％，硫酸盐草甸盐土表层含盐量可达1％～4％，草甸碱土含盐量一般。7％，来自于这些土地的地表径流和农田回归水中盐分含量高，可溶盐的输出负荷大。

Based on the Changxing Agricultural Geologic Environment Survey in Zhejiang Province, the paper marks the abnormal plot of some elements in the soil of surface layer in Meishan Basin, such as Cd、Hg、As、Ni、Pb、S、Br、Cl、F, and lays emphasis on the spatial distribution of the abnormalism, and also evaluates the environmental quality of soil and shallow groundwater preliminarily. The results show that enormous coal gangue was stacked with open-air as a result of coal mining of Meishan Basin.

文章以长兴县农业地质环境调查结果为依据，结合区域浅层、深层土壤及浅层地下水测试分析数据的统计特征，圈定了煤山盆地土壤中Cd、Hg、As、Ni、Pb等重金属和与采煤有关的S、Br、Cl、F等不同元素的地球化学异常图，重点分析了异常的空间表现特征，并对土壤、浅层地下水环境质量进行初步评价。

Thinking comprehensively of geological environment, ecological and nature environment, making surely the contents and emphasis of the environmental quantity assessment, establishing the index system of the environmental impact assessment and its ratings standard, studying the evaluation theories and its methods of the EQA, revealing time-space variety regulation of environmental quantity, studying the time-space distributes regulation of mineral pit water、waste heap eluviate water, tailingspile waste water and its heavy metals pollution and migration rules in surface water, groundwater, water department bottom mire, soil, applying division form R/ S analysis to research the development trend of heavy metals monitors data in water and soil, using mathematical statistics, gray theories, neural network, fuzzy evaluation, time order analysis to establish the forecast model of the EQA in mine geotechnical system.

综合考虑系统内地质环境、生态环境、自然环境，确定矿山岩土工程系统环境质量评价内容与重点，创建矿山岩土工程系统环境质量评价指标体系及其分级标准，研究矿山岩土工程系统环境质量评价理论和评价方法，揭示矿山岩土工程系统环境质量时空变化规律，研究矿坑水、废石场淋滤水、尾矿库废水时空分布规律及其引起的地表水、地下水、水系底泥、土壤等重金属污染及迁移规律，应用分形R／S分析研究水土监测时间序列发展趋势，再用数理统计、灰色理论、神经网络、模糊评价、时序分析等建立岩土工程系统环境质量预测模型。

The reasons of water cycle being destroied are as follows: Because of the forest-steppe vegetation destroied and water and soil erosion, water resource conservation layer is destructed, and surface water and groundwater of mountainous areas is also damaged. Groundwater is damaged as a result of poor drainage of mining industry. The river channelization destroies surface water and wetland groundwater. The plain groundwater is damaged because of excessive exploitation. The decreasing of actual evaporization destructs precipitaion cycle.

发现了自然水循环各环节被破坏的原因：森林草原植被破坏和水土流失，破坏了水源涵养层，破坏了山区地表水和地下水；矿业不良排水破坏了山区地下水；河流渠道化破坏了地表水和湿地地下水；过量开采破坏了平原地下水；陆地实际蒸发量的减少，破坏了大气降水循环。

It proves that; The grass-covered soil profile in depression is formed by accumulation, and the 137 Cs concentration variation with the depth of the profile reflects the information of sediment accumulation and surface soil erosion.

研究结果表明：(1)草地洼地土壤剖面属于堆积土壤剖面，土壤剖面中137Cs浓度分布特征反映了泥沙堆积与表层土壤侵蚀的信息。

While, in order to analyze and assess the change of frozen soil environment, the classification of the thermal thaw-erosion sensibility, the thermal stability and the surface landscape stability of frozen soil is also proposed, which is coordinated with the mean annual ground temperature and freezing-thawing hazards analysis.

为便于评价和分析冻土环境的变化，本文还提出了冻土热融蚀敏感性、热稳定性和地表景观稳定性的划分方法，并使之与冻土年平均地温及冻融灾害相适应。

The law was alike between initial stage and the peak of growth, but the rates reaching maximum of negative and positive were in the different soil depths , and the inflexions of increment anti decrement by degrees were also different. The soil water content in terminal stage increased positively, and in surface reached the maximum, but decreased with the depths, except a little increment in the depth of 460~600cm.

年生长季内，不同生长时期，土壤含水量变化的速度不同，生长初期和生长旺季的规律相似，但速度出现负的最大和正的最大所在的土层深度不同，速度递增和递减所在的土层深度也不同，生长末期速度均为正值，表层最大，随土层深度的加深，速度递减，但到460~600 cm处速度略有增加。

Making use of this model I have a taste in Yan Shan Reservoir watershed in He Nan Province: I start on the information of the surface in this area, give every grid cell the proper parameters by distilling them from the map of how the people use soil and the map of soil type in this area; In order to get the topographical information, I add numerical value to a abundant of contour lines and points in topographical map, use the software Arc View of GIS to create Digital Elevation Models automatically, get every volume of the reservoir from the water level 99m to 117m. By using a special module of the software, I distill triumphantly the grid cells elevation value, slope value, flow direction, flow accumulation, watershed, stream network, isochrones and so on.

本文在分布式水文模型的基础上，对河南省燕山水库流域洪水入库计算模拟方面作了一些研究：从燕山水库流域的下垫信息开始着手，依据流域的土地使用类型图、土壤分布图确定每个栅格单元的土壤特性和土地利用方式，进行下垫信息的参数化，得到单元模型所需的参数值；为了提取地形信息，本文通过对流域地形图海量数据加载高程值，利用GIS软件自动生成流域内的数字高程模型，提取了流域水文模型所需要的库容曲线；通过栅格自动划分，提取栅格单元的高程、坡度、栅格流向、流域边界、虚拟河网、流量积累、等时流线面积分布等分布式水文模型的流域特征。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失