兰州市玉米生长状况无人机遥感动态监测

UAV Remote Sensing Dynamic Monitoring of Maize Growth in Lanzhou City

文章以兰州市某区域玉米为研究对象,通过无人机获取遥感影像数据,结合ArcGIS、人工调查和多时相遥感等技术处理、分析、监测玉米的生长状况。结果表明:从玉米胚芽鞘出现在土壤表面起,其生长状况呈现出由慢到快再到慢的趋势,生长变化最快的阶段是苗期至穗期;冠层颜色随波长与反射率的变化而变化,当波长与反射率增加时,冠层颜色也随之加深,冠层颜色越深表示病虫害程度越大考。

This paper takes a regional maize in Lanzhou City as the research object,obtains remote sensing image data through UAV,and processes,analyzes and monitors the growth status of maize combined with ArcGIS,manual investigation and multi temporal remote sensing.The results show that:the growth of maize coleoptile showed a trend from slow to fast and then to slow from the emergence of maize coleoptile on the soil surface.The fastest growth change stage is from seedling stage to ear stage,the canopy color changes with the change of wavelength and reflectance.When the wavelength and reflectance increase,the corresponding canopy color also deepens.The darker the canopy color,the greater the degree of diseases and pests.