Research Progress on SAR Inversion of Crop and Soil Parameters Based on Microwave Scattering Theory

Research Progress on SAR Inversion of Crop and Soil Parameters Based on Microwave Scattering Theory

Crop and soil parameters serve as fundamental indicators for characterizing crop growth status and monitoring vegetation dynamics. Radar remote sensing presents unique advantages, such as all-weather and day-and-night observation capabilities, as well as insensitivity to meteorological conditions. F...

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Bibliographic Details
Main Authors: Shangrong WU, Rongkun ZHAO, Hong CAO, Yan ZHA, Qiangyi YU, Wenbin WU, Peng YANG
Format: Article
Language:English
Published: China Science Publishing & Media Ltd. (CSPM) 2025-06-01
Series:Leida xuebao
Subjects:
microwave scattering theory
crop parameters
soil parameters
mechanistic model
semi-empirical model
Online Access:https://radars.ac.cn/cn/article/doi/10.12000/JR24260
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Summary:Crop and soil parameters serve as fundamental indicators for characterizing crop growth status and monitoring vegetation dynamics. Radar remote sensing presents unique advantages, such as all-weather and day-and-night observation capabilities, as well as insensitivity to meteorological conditions. Furthermore, the penetration ability of microwaves enhances the sensitivity to soil parameter variations beneath crop canopies, demonstrating significant potential for retrieving crop and soil parameters. This article presents a comprehensive review and analysis of inversion models used for crop and soil parameters based on the microwave scattering theory. First, it discusses the evolution of microwave scattering models from theoretical frameworks to semiempirical approaches, demonstrating key trends in theoretical advancements and methodological refinements. Subsequently, it systematically examines inversion methods for crop parameters, soil parameters, and crop-soil interactions, revealing their underlying microwave scattering mechanisms. Finally, the article discusses current model limitations and proposes future research directions aligned with emerging technological developments to provide novel insights for subsequent investigations.
ISSN:2095-283X

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