论文部分内容阅读
1972年Monteith提出的光能利用效率模型是当前大多数作物生长和产量形成模拟研究以及遥感估产所采用的主要方法.光能利用效率(radiation use efficiency,RUE)和收获指数(harvest index,HI)是其中的两个基本参量.鉴于目前作物RUE和HI研究与应用中仍存在着一些问题,本文综述了相关研究进展,总结了不同尺度上作物RUE和HI的研究方法;介绍了当前遥感估产应用中对RUE和HI两个关键参数的处置概况;建议今后研究应在点尺度开展作物RUE和HI研究的基础上,寻求其在区域尺度上定量评估的可行性途径,切实有效地发挥作物RUE和HI研究在作物实际生产管理中和遥感产量估算方面的应用价值及潜力.
The model of light energy utilization efficiency proposed by Monteith in 1972 is the main method used in most current simulation of crop growth and yield formation and remote sensing yield estimation.RUE and harvest index (HI) Is one of the two basic parameters. In view of the current research and application of crop RUE and HI, there are still some problems. This paper reviews the research progress, summarizes the research methods of crop RUE and HI at different scales, introduces the current application of remote sensing yield estimation It is suggested that future research should explore the feasibility of quantitative assessment on a regional scale on the basis of RUE and HI studies on a point scale and effectively and effectively use crop RUE and The value and potential of HI research in crop real production management and remote sensing yield estimation.