Zilin WANG, Zhao WANG, Liang SUN, Zheng SUN, Mengqi DUAN, Yongqian WANG. Monitoring of Initial Flowering Period based on Remote Sensing Crop Reference Curve of Apple Producing Areas in Loess Plateau[J]. Remote Sensing Technology and Application, 2024, 39(2): 328
- Remote Sensing Technology and Application
- Vol. 39, Issue 2, 328 (2024)
Fig. 1. Overview of the study area
Fig. 2. Location distribution of apple tree samples in Luochuan County
Fig. 3. NDVI reference curve of fruit tree samples in Luochuan County
Fig. 4. Function fitting diagram of NDVI time series reconstruction based on reference curve
Fig. 5. Results of flowering monitoring by remote sensing in Yan'an City
Fig. 6. Proportion of initial flowering period in Yan 'an City
Fig. 7. Flower monitoring results by remote sensing in Luochuan， Xunyi， Liquan and Chengcheng counties
Fig. 8. Results of 2021 flower monitoring by remote sensing in Loess Plateau
Fig. 9. Regression equation
Fig. 10. Spatial distribution of flowering monitoring results and Sentinel data RGB display
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Table 1. Absolute error of flowering detection results in each study area of Loess Plateau （days）
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