一种植被净初级生产力估算方法、装置及设备、存储介质

By integrating multi-scale data and identifying stress factors, the problems of data accuracy and gaps in large-scale vegetation net primary productivity estimation were solved, achieving efficient and accurate vegetation net primary productivity estimation applicable to complex ecosystems.

CN121808298BActive Publication Date: 2026-07-17BEIJING NORMAL UNIV AT ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING NORMAL UNIV AT ZHUHAI
Filing Date
2026-03-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies face problems such as insufficient data accuracy, data gaps, and low computational efficiency in large-scale vegetation net primary productivity estimation. In particular, they are difficult to meet the needs of refined research when the high-resolution data classification system is coarse or the spatial resolution is low.

Method used

By acquiring land cover data, land use classification data, surface reflectance data, and meteorological and climatic data, multi-scale fusion and quality control are performed to identify temperature stress factors and water stress factors. Combined with the photosynthetically active radiation absorption ratio, high-precision estimation of vegetation net primary productivity is achieved.

Benefits of technology

It improves the efficiency and accuracy of vegetation net primary productivity estimation, reduces data gaps, significantly enhances the parameterization accuracy of complex ecosystems such as forests, and is suitable for integrity estimation in cloudy and rainy areas.

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Abstract

本发明提供一种植被净初级生产力估算方法、装置及设备、存储介质,方法包括:获取目标区域预设时间段内的土地覆盖数据、土地利用分类数据、地表反射率数据、气象气候数据及初始蒸散发数据;对土地覆盖数据和土地利用分类数据进行多尺度融合,得到土地利用图;对地表反射率数据进行质量控制和去噪处理,得到光合有效辐射吸收比例;对土地利用图中的归一化植被指数进行逐像元识别,得到温度胁迫因子;对初始蒸散发数据进行融合计算,得到水分胁迫因子;根据光合有效辐射吸收比例、温度胁迫因子和水分胁迫因子,得到目标区域在预设时间段内的植被净初级生产力。本发明能够提高植被净初级生产力估算的效率、精度和数据无空洞比例。
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Citation Information

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