基于国产数据及物候特征的水稻面积精细遥感监测方法研究

Research on the Method of Elaborate Monitoring of Rice Area Based on Phenological Characteristics

及时、准确地监测水稻种植面积,对于粮食安全十分重要。本文在分析灵武市域水稻及同期作物物候特点及影像特征基础上,提出了基于国产数据及物候特征的水稻面积精细遥感监测方法,并在2018—2019年灵武市水稻面积精细遥感监测中得到应用,取得了良好的效果。实践证明,基于国产数据及物候特征的灌区水稻面积精细遥感监测方法,既能反映水稻的时序变化信息,提高判读精度,也能将监测对象精确到地块,提高解译精度。

Rice is one of the three major food crops in my country,and timely and accurate monitoring of the rice planting area is particularly important.Based on the analysis of the phenological characteristics and image character⁃istics of rice and crops in Lingwu City,this paper proposes a method for elaborate monitoring of rice area in Lingwu City based on phenological characteristics,and is applied in the elaborate monitoring of rice area in Lingwu City form 2018 to 2019,and achieved good results.Practice has proved that the elaborate monitoring method of rice area in Lingwu City based on phenological characteristics can not only reflect the time series change information of rice,and improve the accuracy of interpretation;it can also accurately interpret the monitored objects to the plots and improve the interpretation accuracy.