• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >The origin of soil selenium in a typical agricultural area in Hamatong River Basin, Sanjiang Plain, China
【24h】

The origin of soil selenium in a typical agricultural area in Hamatong River Basin, Sanjiang Plain, China

机译：中国三江平原仓仓盆地典型农业区土壤硒的起源

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

The origin of soil selenium (Se) is relatively complex, and analysis of the origin of soil Se is of great significance in clarifying the cause of its richness and the impact of human activities on soil environmental quality, as well as assisting in the scientific planning of Se-rich land use, improving land use value, and promoting regional economic development. In this study, in order to identify and clarify the origin of soil Se and the causes of its richness in a typical agricultural area in the Hamatong River Basin of the Sanjiang Plain, we tested the Se concentrations in soil, atmospheric deposition, irrigation water, chemical fertilizer, rock, and rice crop samples from the study area. Geostatistical analysis indicated that the soil Se is mainly controlled by natural factors such as soil parent material. Elemental geochemical analysis indicated the soil Se is mainly derived from the granite occurring in the Wanda Mountains. Elemental mass balance analysis indicated that the atmospheric deposition is the most important source of soil Se input, with a contribution of 84.90%, followed by irrigation and fertilization. Deep percolation is the main pathway of soil Se output, with a contribution of 74.17%, followed by rice crop harvest and volatilization. In addition, the soil Se is derived from a natural source, its richness can be attributed to the effect of anthropogenic factors, such as fossil fuel combustion and fertilization, superimposed on the high natural background value of soil Se.
机译：土壤硒（SE）的起源是相对复杂的，并且在澄清其丰富性和人类活动对土壤环境质量的影响以及科学规划方面的原因，对土壤的起源具有重要意义。富含硒的土地利用，改善土地利用价值，促进区域经济发展。在这项研究中，为了识别和澄清土壤的起源以及在三江平原哈马干河流域的典型农业领域中的典型农业领域的原因，我们在土壤中进行了测试浓度，大气沉积，灌溉用水，研究区的化肥，岩石和稻米作物样品。地质统计分析表明，土壤硒主要受土壤母材等自然因素控制。元素地球化学分析表明，土壤SE主要来自万达山脉的花岗岩。元素质量平衡分析表明，大气沉积是土壤SE投入最重要的来源，贡献为84.90％，其次是灌溉和施肥。深层渗透是土壤SE产出的主要途径，贡献为74.17％，其次是大米作物收获和挥发。此外，土壤Se来自天然来源，其丰富性可归因于人为因素，例如化石燃料燃烧和施肥，叠加在土壤的高自然背景值上。

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