灌区水资源循环转化研究进展

Research Progress of Water Cycle and Transformation in Irrigation Districts

灌区水资源循环转化研究在理论和方法上都取得了显著的进展,研究方法由单一的数学规划模型发展为数学规划与现代模拟技术等的耦合模型;研究目标上由注重灌区水源水量的研究发展为灌区水源水质水量并重的研究;研究尺度由田间尺度的水文循环研究发展为大尺度跨流域水资源循环研究.但由于水资源循环转化关系的复杂性,当前研究仍存在不足,主要表现为分布式水文模型在应用上的局限性、"人工-自然"二元水循环模型存在较大不确定性和水质水量联合评价研究较少.由此提出了水资源循环转化研究的发展趋势:考虑多种水资源之间的循环转化,考虑人类活动的影响,研究各种协调关系以及多种方法的耦合.

The research of water cycle and transformation in irrigation districts has obtained significant achievement in terms of theory and method. The research methods have converted from single mathematical programming model into the coupling of mathematical programming and modern simulation technology, the studied objectives have changed from the quantities of water to the research considering the factor of water quality; and the research scale has expanded from field scale to inter-basin scale. Because of the complexity of water cycle and transformation, the current research is still inadequacy. There are the limitation of distributed hydrological model, the uncertainty in ＂artificial-natural＂ dualistic water cycle model and the shortage of evaluation on water quantities and quality. Thus, the development trends of water cycle and transformation research are proposed that various water cycle and transformation as well as human activities will be considered, and various coordination relations and many methods coupling will be studied.