果树的含量估计基于模拟的卫星遥感数据
Meixuan Li1, Xicun Zhu1,2, Xinyang Yu1
1College of Resources and Environment, Shandong Agricultural University, Tai'an, China.
Frontiers in plant science
|August 1, 2025
概括
卫星遥感使用Sentinel-2数据准确估计果树的含量. 这项研究通过确定最佳的光谱带和模拟果营养诊断策略来指导区域精密受精.
科学领域:
- 农业科学 农业科学
- 遥感 遥感 遥感 遥感
- 植物营养 植物营养
背景情况:
- 精确的果树含量诊断对于精确的受精至关重要.
- 卫星遥感为区域范围的营养评估提供了潜力.
- 卫星数据的变化需要对果逆转进行评估.
研究的目的:
- 系统地评估多源卫星数据适用于果树含量估计的可用性.
- 在关键的现象学阶段确定最佳的光谱带和建模策略.
- 为区域精密受精系统提供科学基础.
主要方法:
- 在三个现象学时期 (NGS,NSS,ASS) 收集了天花板高光谱数据.
- 重新采样数据以匹配卫星光谱分辨率.
- 用于频段选择和模型构建的相关系数,PLS回归,SVM和BPNN.
主要成果:
- 可见,红边,近红外和黄色边带被确定为对含量敏感.
- 使用Sentinel-2模拟数据的支持矢量机模型展示了最佳性能.
- 最佳模型实现了0.81 (培训) 和0.61 (验证) 的R2值.
结论:
- 卫星遥感,特别是Sentinel-2,对于区域果树气估计非常有效.
- 现象学阶段显著影响敏感的光谱带.
- 这项研究为果园中基于遥感的营养管理提供了有价值的技术范式.
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