1.Introduction.From time immemorial the natural environment has impacted the health of plants,animals and humans.Although many of the impacts are negative causing a wide range of non-communicative health problems,the ...1.Introduction.From time immemorial the natural environment has impacted the health of plants,animals and humans.Although many of the impacts are negative causing a wide range of non-communicative health problems,the natural environment also provides the necessary nutrients and essential elements that sustain life.For millennia various cultures have been aware of health impacts of the environment and much of the early literature offered advice as to what minerals or rocks were to be used to address these issues.展开更多
土壤优先流是水分和溶质通过土壤中非均匀通道快速运移的过程,尤其对于强渗透地层,显著影响地下水补给和污染物扩散。在全球同一健康(One Health)的框架下,作为土壤-地下水交换密切的土壤优先流及其运移特征对于土壤-地下水系统健康越...土壤优先流是水分和溶质通过土壤中非均匀通道快速运移的过程,尤其对于强渗透地层,显著影响地下水补给和污染物扩散。在全球同一健康(One Health)的框架下,作为土壤-地下水交换密切的土壤优先流及其运移特征对于土壤-地下水系统健康越发重要。本文基于Web of Science(WOS)和中国知网(CNKI)数据库文章,采用CiteSpace对强渗透地层土壤优先流及其运移通道特征的研究进展进行系统梳理。研究热点主要集中在“数值模拟”、“染色示踪”和“溶质运移”等方面,研究侧重于土壤结构与实验方法改进及污染物扩散影响。现有研究方法中,地质雷达(GPR)和电阻成像(ERT)等技术在优先流通道高分辨识别中优势明显,能够实现对土壤内部结构的精细刻画,但在野外大尺度应用中仍存在数据解释复杂等技术难点。在环境模拟中,HYDRUS、SWMS-2D/3D、MT3DMS及MODFLOW-CFP等数值模型应用广泛,但野外大尺度的动态监测技术仍不够完善,多技术协同监测体系尚未建立,模型参数优化仍面临挑战。在全球同一健康框架和气候变化下,需进一步探究优先流对土壤-地下水系统水文过程的影响,以促进强渗透地层优先流精细刻画及其运移特征在土壤-地下水系统水资源管理和污染防治中的深入研究。展开更多
文摘1.Introduction.From time immemorial the natural environment has impacted the health of plants,animals and humans.Although many of the impacts are negative causing a wide range of non-communicative health problems,the natural environment also provides the necessary nutrients and essential elements that sustain life.For millennia various cultures have been aware of health impacts of the environment and much of the early literature offered advice as to what minerals or rocks were to be used to address these issues.
文摘土壤优先流是水分和溶质通过土壤中非均匀通道快速运移的过程,尤其对于强渗透地层,显著影响地下水补给和污染物扩散。在全球同一健康(One Health)的框架下,作为土壤-地下水交换密切的土壤优先流及其运移特征对于土壤-地下水系统健康越发重要。本文基于Web of Science(WOS)和中国知网(CNKI)数据库文章,采用CiteSpace对强渗透地层土壤优先流及其运移通道特征的研究进展进行系统梳理。研究热点主要集中在“数值模拟”、“染色示踪”和“溶质运移”等方面,研究侧重于土壤结构与实验方法改进及污染物扩散影响。现有研究方法中,地质雷达(GPR)和电阻成像(ERT)等技术在优先流通道高分辨识别中优势明显,能够实现对土壤内部结构的精细刻画,但在野外大尺度应用中仍存在数据解释复杂等技术难点。在环境模拟中,HYDRUS、SWMS-2D/3D、MT3DMS及MODFLOW-CFP等数值模型应用广泛,但野外大尺度的动态监测技术仍不够完善,多技术协同监测体系尚未建立,模型参数优化仍面临挑战。在全球同一健康框架和气候变化下,需进一步探究优先流对土壤-地下水系统水文过程的影响,以促进强渗透地层优先流精细刻画及其运移特征在土壤-地下水系统水资源管理和污染防治中的深入研究。
