Organic compound contamination on soil and groundwater is causing more and more attention in the world.
有机化合物对土壤、地下水的污染已引起世界各国的普遍关注。
Groundwater contamination with viruses has caused great concerns in various countries because viruses are much smaller in size than bacteria or protozoan cysts and not easy to be filtered out through the porous soil matrix.
由于病毒比细菌和原生动物包囊小得多，在通过多孔土壤时不容易被过滤净化，地下水资源的病毒污染已引起各国科学家的高度关注。
It is suggested that to use soil catalase and saccharase activities to indecate the contamination situation by heavy metal in the soil of tea garden.
建议以过氧化氢酶和蔗糖酶的活性作为评价和预测锰矿恢复区茶园土壤锰镉污染状况的敏感指标。
Human's irrational development activities have brought serious effects to soil environment, such as desertification, soil erosion, salination, and contamination etc.
人类不合理的开发行为给土壤环境带来了沉重的负面影响，主要表现为土壤沙化、土壤侵蚀、土壤盐渍化、土壤污染等。
Industrial waste and air pollution have led to soil contamination—especially in old urban areas.
工业废物和空气污染导致了土壤污染――特别是在老的城市区。
Appearance: white, no yellow, no bands, no soil contamination.
外观：白色、无黄皮、无条带、无泥土污染。
Open loop systems that draw water from a well and drain to the surface may contribute to aquifer depletion, water shortages, groundwater contamination, and subsidence of the soil.
开环系统，吸引流失的水和良好的表面可能会导致含水层耗竭，水资源短缺，地下水污染，土壤下陷的。
Cd contamination of soil was serious in Dangping nationalized wolfram mine tailing wasteland areas.
荡坪尾砂库区土壤Cd污染严重，木贼与蜈蚣草为Cd的避性植物，可用于库区Cd污染土壤的植被重建先锋物种；土荆芥与香附子为Cd的积累植物，可以用于库区Cd污染土壤的植物修复；其它植物为Cd的排斥植物，可用于库区Cd污染土壤的植物固化。
The solubility of Pb was controlled by the level of soil contamination and pH.
对Pb的分配系数分析得知：pH和土壤Pb污染程度是影响Pb溶解性的两个因素。
Soil; heavy metal contamination; remediation; chelant
螯合剂在重金属污染土壤修复中具有重要的作用。
On compound contamination soil, the use of lemon acid could stimulate the protein content and root activity of potherb mustard significance.
在Cd-Pb复合污染的土壤中施用包膜柠檬酸，对雪里蕻体内蛋白质含量和根系活力的提高效果最为显著。
Aiming at this question, the paper put forward utilizing layer of soil to depurating rainwater project. The paper researches the rule of soil depurating rainwater and ascertain measure of cortroling contamination, on the basis of which the paper put forward rainwater depurated by soil to manual recharging groundwater project.
针对这一问题，本文提出就地利用土壤层收集净化雨水的方案，研究了雨水在土壤层中的净化规律，确定需要采取的污染控制措施，并在此基础上以西安市某规划小区为例，提出雨水通过土壤层净化后人工补给地下水的实施方案。
The recreation development changed the amount and distribution of vegetation, and the tourist activity changed the category, diversity and coverage of vegetation, and moreover, caused soil physical contamination in the both sides of travel road.
旅游开发从整体上改变了植被类型的数量和分布，而游客的大量涌入则是使植被的种数、多度和盖度发生了变化，并造成了游道两侧土壤的物理污染。
The composition and distribution characteristics of saturated hydrocarbons in surface soil samples (0~25 cm) collected from different function districts of Tianjin were analyzed to reveal the sources and contamination levels of these compounds. In addition, the environmental significance, composition and distribution of normal alkanes, steranes and terpanes were also discussed. Furthermore, the geochemical indices and vertical variation of saturated hydrocarbons from different horizons (sub-horizon)(0~5 cm, 5~10 cm, 10~15 cm, 15~20 cm, and 20~25 cm) were compared.
为揭示天津地区不同环境功能区表层土壤中饱和烃污染特征及其来源，分析了该地区几个具代表性的环境功能区表层土(0~25cm)中饱和烃化合物的组成和分布特征，重点讨论了正构烷烃和甾、萜烷烃类化合物的组成、分布及环境意义，比较了不同层次(0~5cm，5~10cm，10~15cm，15~20cm，20~25cm)中这些化合物及相关的地球化学参数的变化规律。
The effect of using chelator was better than that of citric acid in heavy metal contamination soil.
结论］在重金属污染土壤上以施用螯合剂EDTA、DTPA为好。
Remediation methods for soil heavy metal contamination applied in recent years arc sammed up and classified into four typs according to mode of remediation in mis paper, that is, engineering practice, biological practice, agronomic practice, modifier practice.
在阐述土壤环境重金属污染特点的基础上，介绍了近年来国内外采用的各种土壤重金属污染的治理措施，按治理方式归纳为四类：工程措施、生物措施、农业措施和改良措施。
Aim at the problem of the In-situ Remediation of Pb, Cd contamination in soil, pot experiment is under simulating Pb, Cd contaminative soil by calcium superphosphate, lime, sodium sulfide as the amendment, lateritic soil adds exogenous water-soluble Pb, Cd compounds, and amaranth and garlic as indicating plants.
针对砖红壤中Pb、Cd污染的原位修复问题，以过磷酸钙、石灰、硫化钠为改良剂，砖红壤添加外源水溶性Pb、Cd化合物模拟土壤Pb、Cd污染，以苋菜和大蒜为指示植物进行盆栽试验，利用土壤连续浸提-原子荧光法系统的探讨了改良剂和水分对土壤中各形态的Pb、Cd的修复效果。
Declining soil fertility and soil quality, as well as soil contamination and food safety cause great concern.
耕地数量的减少与人口的增长、耕地地力与环境质量的退化、土壤污染与食品安全已成为社会各界普遍关注的问题。
The diversity, community structure, and species composition of springtails in the soil reflect the status of soil quality and contamination.
土壤中跳虫的多样性以及群落结构、物种组成都反映了土壤的质量和污染状况。
The problem of soil contamination with heavy metals is of increasing interest worldwide.
土壤重金属污染是国际土壤与环境研究的热点和难点问题之一。