• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Engineers >Spatial and Temporal Variation of Ground Water Quality in Sand Dune Area of Aomori Prefecture in Japan
【24h】

Spatial and Temporal Variation of Ground Water Quality in Sand Dune Area of Aomori Prefecture in Japan

机译：日本青森县沙丘地区地下水质量的空间和时间变化

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

摘要

To develop the best management practice for agricultural land of sand dune area for sustainable crop production and conservation of surrounding environment, ground water quality is to be evaluated. The objective of the present study was to investigatethe spatial and temporal variation of ground water quality in sand dune area of Tsugaru city in Aomori Prefecture, Japan. Three observation wells were installed with three plastic tubes to collect ground water of 2.0 m, 2.5 m and 3.0 m depth. Ground water samples were analysed for electrical conductivity (EC), pH, concentration of Fe, K, NO_3-N, and PO_4-P. Soil environment from 0.1 m through 3.0 m was also evaluated. The results showed that EC, pH, and K concentration in ground water were decreased with increasing depth throughout the investigation period whereas Fe concentration was increased. The ground water of the study area was found not suitable for sprinkler irrigation since concentration of Fe was more than 1.5 mg L~(-1). Average concentrations of NO_3-N and PO_4-P in ground water of the study area were 0.029 mg L~(-1) and 0.062 mg L~(-1), respectively. Soil environment at the depth of 0.1 m and 0.5 m always showed oxidized condition (oxidation-reduction potential >300 mv). On the other handsoil environment at the depth of 2.5 m and 3.0 m showed reduced condition (oxidation-reduction potential <300 mv) during the study period. Soil environment at 1.5 m depth was found oxidized in the month of April, July, September and October, and reducedin the month of May, June, August and November. This might be due to fluctuation of ground water level. Because of presence of very low concentration of NO_3-N and PO_4-P in ground water, there may not be any threat to human health and environment.
机译：为开发用于可持续作物生产和保护周围环境的沙丘地区的农业用地的最佳管理实践，应评估地面水质。本研究的目的是在日本青森县沙丘市沙丘地区的地下水质量的空间和时间变化。使用三个塑料管安装了三个观察孔，收集2.0米，2.5米和3.0米深度的接地水。分析接地水样，用于电导率（EC），pH，Fe，Fe，NO_3-N和PO_4-P的电导率（EC）。还评估了0.1米至3.0米的土壤环境。结果表明，在整个调查期间，在越来越多的深度下降，均匀，EC，pH和K浓度下降，而Fe浓度增加。发现研究区域的地下水不适合喷洒灌溉，因为Fe浓度大于1.5mg L〜（-1）。研究区域的地水中NO_3-N和PO_4-P的平均浓度分别为0.029mg L〜（-1）和0.062mg L〜（-1）。深度为0.1米和0.5米的土壤环境总均显示氧化条件（氧化还原电位> 300mV）。在2.5 m和3.0 m深度的其他手机环境上显示出在研究期间的条件降低（氧化还原电位<300 mV）。在4月，7月，9月和10月，在4月，9月和10月，和5月，6月，8月和11月，发现土壤环境被发现为1.5米深度氧化。这可能是由于地下水位的波动。由于地下水中NO_3-N和PO_4-P浓度非常低的存在，可能对人类健康和环境没有任何威胁。

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