...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hazardous Materials >Insights into the inhibition effects of Cd on soil enzyme activities: From spatial microscale to macroscale
【24h】

Insights into the inhibition effects of Cd on soil enzyme activities: From spatial microscale to macroscale

机译：洞察CD对土壤酶活性的抑制作用：从空间微观到宏观

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cd is a heavy metal with high toxicity and adverse influence on the activities of soil enzymes. However, how Cd toxicity varies with the microenvironment or different regions needs further investigation. In this study, 17 soil samples were collected from different locations in China. Each soil sample was divided into two parts in accordance with aggregate size, macroaggregate fraction ( 250 mu m) and microaggregate fraction ( 250 mum). The inhibitory effects of Cd on three soil enzymes were analyzed. Results showed that on the microscale, the inhibitory effect of Cd in macroaggregates was significantly stronger than that in microaggregates. Moreover, the inhibitory effect of Cd varied obviously across different regions, with the greatest effects being observed in soils from northeast China. This result indicates that the temperature and precipitation played a synergistic role in the Cd inhibition effects. The Cd inhibition ratios showed significantly negative correlations with clay content and positive correlations with pH value and organic carbon content, indicating that soil clay, pH and organic carbon were the main factors determining the Cd inhibition ratios on enzyme activities. This suggests that factors on the microscale and macroscale should be considered in addressing Cd pollution in soils.
机译：CD是一种重金属，具有高毒性和对土壤酶活性的不利影响。然而，CD毒性如何因微环境或不同地区而变化需要进一步调查。在这项研究中，从中国的不同地点收集了17种土壤样品。将每个土壤样品按照聚集体尺寸，大块馏分（250μm）和微凝聚馏分（250μm）分成两部分。分析了CD对三种土壤酶的抑制作用。结果表明，在微观尺寸上，CD在大甲渣中的抑制作用明显强于微烧致中的抑制作用。此外，CD的抑制作用在不同地区的不同地区变化，在中国东北的土壤中观察到最大的效果。该结果表明，温度和沉淀在CD抑制效果中发挥了协同作用。 CD抑制比与粘土含量和与pH值和有机碳含量的阳性相关性显着的负相关性，表明土壤粘土，pH和有机碳是确定酶活性上CD抑制比的主要因素。这表明应考虑在解决土壤中的CD污染时考虑微观尺度和宏观的因素。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2021年第15期|126274.1-126274.11|共11页
  • 作者

    Liu Ping; Chen Sheng; Cui Yini; Tan Wenbing;

  • 作者单位

    Tech Ctr Soil Agr & Rural Ecol & Environm Minist Ecol & Environ Beijing 100012 Peoples R China;

    Tech Ctr Soil Agr & Rural Ecol & Environm Minist Ecol & Environ Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci State Environm Protect Key Lab Simulat & Control Beijing 100012 Peoples R China|China Agr Univ Coll Resources & Environm Sci Beijing 100193 Peoples R China;

    Chinese Res Inst Environm Sci State Environm Protect Key Lab Simulat & Control Beijing 100012 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Extracellular enzymes; Cd pollution; Inhibition ratio; Soil aggregates; Regional climate features;

    机译：细胞外酶;Cd污染;抑制率;土壤汇总;区域气候特征;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号