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冬小麦种植面积是农情监测中一个重要的监测因素,对生产管理与产量预测有重要意义。该文在冬小麦与同期主要大宗作物绿度-时相曲线对比分析的基础之上,建立反映冬小麦种植区域的差值植被指数图像,采用遥感-统计的方法,对利用NOAA图像进行冬小麦种植面积遥感监测进行了初步研究。通过对我国冬小麦主产区的河北、河南和山东三省的监测实验证明,该方法适用于大范围的冬小麦种植面积遥感监测。
Winter wheat acreage is an important monitoring factor in agro-industry monitoring, and it is of great significance to production management and yield forecast. Based on the contrast analysis of the green space-time curve of winter wheat and the main bulk crops in the same period, a differential vegetation index (NDVI) image reflecting winter wheat planting area was established. Using remote sensing and statistics method, Monitoring conducted a preliminary study. Through the monitoring experiments in Hebei, Henan and Shandong provinces, the main producing areas of winter wheat in our country, the method is suitable for monitoring a large area of winter wheat acreage.