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#作物胁迫监测

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论文Plant Science Today

遥感技术作物水分胁迫监测的最新趋势:综述(Recent trends in crop water stress monitoring using remote sensing technologies: A review)

该综述梳理无人机遥感在作物水分胁迫监测中的进展,指出融合RGB、多光谱、高光谱与热红外传感器可获取叶绿素、冠层温度与气孔导度等指标;春季玉米随机森林模型R²>0.575,棉花XGBoost对水分胁迫指数R²达0.90,但仍需跨区验证与决策系…

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综述汇总了随机森林与XGBoost在玉米、棉花水分胁迫指数上的精度表现(R²最高0.90),可作为模型选型参考,但跨区域验证不足限制其直接推广。

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论文Zenodo (CERN European Organization for Nuclear Research)

Use of Remote Sensing Techniques for Agriculture Survey: A Review

This article reviews the integration of remote sensing technologies into agricultural surveys to address the limitations of conventional data collection, such as high costs, questionable reliability, and lack of timeliness. It examines how electromagnetic radiation, spectral signatures, and various sensor systems (including IRS-1C, LISS-III, PAN, and WiFS) are utilized to monitor dynamic agricultural resources. The review highlights specific applications across three main domains: crop surveys (e.g., crop identification, yield forecasting, and disease infestation), range surveys (e.g., forest delineation and soil moisture), and livestock surveys. The study concludes that remote sensing provides a rapid, cost-effective, and comprehensive synoptic view essential for effective local and national agricultural planning and resource management.

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该综述归纳了IRS-1C、LISS-III、WiFS等传感器在作物识别、产量预报与病害监测中的具体用途,可作为农业遥感业务选型的基础参考,但未提供新实验数据。

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论文Agriculture 2026, 16(16), 1769 (MDPI) 2026-08-18一手来源

基于无人机多光谱的玉米与大豆盐胁迫响应指数及盐分管理干预比较评估

北京市农林科学院联合中国农业科学院烟草研究所在山东滨海盐渍区开展 14 块玉米与 13 块大豆试验,基于 UAV 多光谱与偏最小二乘路径建模(PLS-PM)融合基线土壤盐分与叶面积指数、株高、SPAD、覆盖度,构建盐胁迫响应指数 SSRI;SSRI 与产量呈显著负相关(r=−0.670 至 −0.764),EN 模型在玉米拔节期 R²=0.774、PLSR 在开花期 R²=0.819,生成的空间 SSRI 地图可捕捉田间异质性,为盐渍农业 UAV 作物胁迫监测与精准管理干预评估提供概念验证框架。

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该研究用无人机多光谱构建玉米、大豆盐胁迫响应指数,并对比不同盐分管理干预效果,可为盐碱地改良效果的田块尺度快速评估提供方法参考,但结论适用性受试验地点与盐分梯度限制。

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