• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Pollution >Reflectance properties and physiological responses of Salicornia virginica to heavy metal and petroleum contamination
【24h】

Reflectance properties and physiological responses of Salicornia virginica to heavy metal and petroleum contamination

机译：盐柳对重金属和石油污染的反射特性和生理响应

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

Wetland ecosystems of California are located in highly populated areas and subject to high levels of contamination. Monitoring of wetlands to assess degrees of pollution damage requires periodic retrieval of information over large areas, which can be effectively accomplished by rapidly evolving remote sensing technologies. The biophysical principles of remote sensing of vegetation under stress need to be understood in order to correctly interpret the information obtained at the scale of canopies. To determine the potential to remotely characterize and monitor pollution, plants of Salicornia virginica, a major component of wetland communities in California, were treated with two metals and two crude oil types to study their sensitivity to pollutants and how this impacted their reflectance characteristics. Several growth and physiological parameters, as well as shoot reflectance were measured and correlated with symptoms and contamination levels. Significant differences between treatments were found in at least some of the measured parameters in all pollutants. Reflectance was sensitive to early stress levels only for cadmium and the lightweight petroleum. Pollutants that differ in their way of action also had different plant reflectance signatures. The high degree of correlation between reflectance features and stress indicators highlights the potential of using remote sensing to assess the type and degree of pollution damage.
机译：加利福尼亚的湿地生态系统位于人口稠密的地区，并受到高度污染。监测湿地以评估污染破坏程度需要定期在大面积上检索信息，这可以通过快速发展的遥感技术有效地完成。为了正确地解释在冠层范围内获得的信息，需要了解在压力下对植被进行遥感的生物物理原理。为了确定潜在地远程表征和监测污染的潜力，对Salicornia virginica（加利福尼亚州湿地社区的主要组成部分）的植物进行了两种金属和两种原油类型的处理，以研究其对污染物的敏感性以及这如何影响其反射特性。测量了几种生长和生理参数以及枝条反射率，并将其与症状和污染水平相关联。在所有污染物的至少某些测量参数中发现处理之间的显着差异。反射仅对镉和轻质石油对早期应力水平敏感。作用方式不同的污染物也具有不同的植物反射特征。反射特征和应力指标之间的高度相关性凸显了使用遥感评估污染损害的类型和程度的潜力。

著录项

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