农业节水灌溉尺度分析方法研究进展  

Review on scaling analysis approaches for agricultural water saving irrigation

作　　者：谢先红[1] 崔远来[1] 代俊峰[1] 石祥增[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水利学报》2007年第8期953-960,共8页Journal of Hydraulic Engineering

基　　金：国家自然科学基金资助项目(50579059);教育部博士点基金项目(20050486002)

摘　　要：在阐述节水灌溉尺度效应内涵和尺度效应存在原因的基础上,从数据获取途径、节水尺度效应描述方法和节水尺度转换方法等3个方面当前的发展进行了评述,并探讨了节水尺度分析方法的主要发展趋势。现有研究成果表明,试验监测、遥感和GIS技术是数据获取、分析的主要途径;不同尺度试验方法和数值模拟方法在一定程度上描述了水均衡要素的尺度效应以及作物与水、肥的响应关系;而分形理论、地质统计学和小波分析等非线性理论在尺度转换方面也有一些研究工作。针对目前研究情况,指出了大尺度上水循环描述和不同尺度间水均衡变量尺度转换等尺度分析方面的研究,是重点发展方向和主要研究内容。The connotation of scaling effect of agricultural water saving irrigation is demonstrated and the cause of its existence is analyzed. On this basis a review on development of information collection method for scaling, tendency of description of scale effect and scaling transformation method is presented and the development scaling analysis for water saving at present is discussed. The existing research findings show that the remote sensing and GIS technology are the major means for information collection, experiments and numerical simulation are usually applied to describe the scale effect of the water balance elements as wellas the response of crop on water and fertilizer. Furthermore, the fractal theory, geostatistics and wavelet method are already used to study the scaling transformation. It is pointed out that the description method of water cycling in large scale and the scaling transformation of water equilibrium variant among different scales are the focus of research work at present.

关 键 词：节水灌溉 尺度效应 尺度分析 田间试验 数值模拟 非线性理论 

分 类 号：S275[农业科学—农业水土工程]