• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>World Congress of Soil Science >Long term effect of irrigation with the treated sewage effluent on some soil properties for date palms in Al Hassa, Saudi Arabia
【24h】

Long term effect of irrigation with the treated sewage effluent on some soil properties for date palms in Al Hassa, Saudi Arabia

机译：灌溉对处理污水污水的长期效果对Al Hassa，沙特阿拉伯的枣树枣土壤特性

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is a gradual decline in availability of fresh water to be used for irrigation in Saudi Arabia. As a consequence, the use of sewage and other industrial effluents for irrigating agricultural lands is on the rise particularly in developing areas.On the other hand, there is increasing concern regarding statutory and advisory food standards for trace metals throughout the world. Hence, a case study was undertaken to assess the long-term effect of sewage irrigation on some soil properties and heavymetals concentrations in the soils under the date palm in Al- Hassa; Saudi Arabia. To achieve this goal, thirty two surface soil samples were collected from the study area. Half were collected from an area irrigated for 13 years with treated sewage effluent. The rest of soil samples were collected from an area irrigated with well water in addition to reference samples from uncultivated areas. Sewage effluent, ground water, soil and plant samples were collected and analyzed mainly for metal contents. The results emphasized the role of sewage effluent irrigation on increasing heavy metal content as well as organic matter content in the soils when compared with the respective values obtained under well water irrigation. Furthermore, the soil salinity ranged from 2.5 to 3.69 dS/m with an average of 2.8 dS/m due to irrigation with well water. Soil salinity ranged from 3.58 to 20.7 dS/m with an average of 7.9 dS/m after irrigation for a long period with the treated sewage effluent. Sewage effluent contained much higher amounts of Zn, Cu, Fe, Mn, Co, Cr, Pb and Ni compared to ground well water. Generally soils receiving sewage irrigation for more than 13 years exhibited significant increases in Zn, Fe, Ni and Pb.
机译：在沙特阿拉伯灌溉中使用淡水的可用性逐渐下降。因此，污水和其他工业污水用于灌溉农业土地的使用尤其是在发展领域的崛起。另一方面，关于全世界痕量金属的法定和咨询食品标准越来越受到关注。因此，采取案例研究，以评估污水灌溉对某些土壤性质和重影浓度的污水灌溉在Al-Hassa的枣树下的浓度;沙特阿拉伯。为实现这一目标，从研究区收集了三十两种表面土壤样品。一半从灌溉13年灌溉的区域收集，处理污水流出物。除了来自未淘汰区域的参考样品之外，从用井水灌溉的区域收集土壤样品的其余部分。收集污水污水，地面水，土壤和植物样品，并主要用于金属含量分析。结果强调了污水污水灌溉对与在井水冲洗下获得的各个值相比的土壤中增加重金属含量以及有机质含量的作用。此外，由于浓水水灌溉，土壤盐度为2.5至3.69ds / m，平均为2.8ds / m。土壤盐度从3.58至20.7ds / m的范围从3.58到20.7ds / m，灌溉后平均约7.9ds / m，但经过处理过的污水流出物。与地面井水相比，污水流出物含有更高量的Zn，Cu，Fe，Mn，Co，Cr，Pb和Ni。通常，接受污水灌溉的土壤超过13岁，Zn，Fe，Ni和Pb的显着增加。

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