[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"item-2155":3},{"id":4,"title":5,"url":6,"summary":7,"summary_zh":8,"content":9,"source_name":10,"source_url":6,"published_at":11,"category":12,"cover_url":9,"hotness":13,"is_selected":14,"score":15,"score_detail":16,"sources":23,"tags":25,"view_count":31,"doi":32,"paper":33,"created_at":51},2155,"Bridging canopy light interception and absorption: Toward a multi-scale radiometric framework for precision irrigation in woody crops","https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.srs.2026.100505",": Optimizing irrigation in orchards is increasingly challenged by climatic variability, water scarcity, and structural heterogeneity, requiring indicators that robustly link canopy architecture with transpiration and energy exchange processes. The fraction of intercepted photosynthetically active radiation (fIPAR) is widely used in agronomy to characterize canopy structure and radiation interception, whereas the fraction of absorbed PAR (fAPAR) is more commonly used in remote sensing, yet their relationship and relevance for orchard irrigation remain insufficiently clarified. This review critically examines the theoretical foundations, methodological developments, and irrigation applications of Canopy Light Interception in woody crops over the past three decades. We synthesize empirical formulations, geometric approaches, radiative transfer modelling, and advances in proximal and remote sensing, including hemispherical photography, LiDAR platforms, unmanned aerial vehicles, and satellite-derived products. The conditions under which fIPAR approximates fAPAR are examined, revealing that their divergence is more relevant in discontinuous orchard systems than in homogeneous canopies. We evaluate how Canopy Light Interception supports evapotranspiration estimation, crop coefficient refinement, and irrigation scheduling, while emphasizing that it constrains potential radiative demand rather than directly representing physiological regulation of transpiration. Despite substantial methodological progress, inconsistent terminology, heterogeneous protocols, and limited cross-validation across scales hinder comparability and deployment. We suggest a multi-scale framework in which fIPAR is a structural–radiative constraint on potential canopy water demand. This is embedded within integrated sensing and irrigation decision systems. We argue that clarifying the conceptual boundary between fIPAR and fAPAR is essential for translating canopy radiation assessments into decision-support tools for water-efficient orchard management under increasing climatic pressure.","果园灌溉优化正日益受到气候变异性、水资源短缺和结构异质性的挑战，亟需能够稳健地将冠层结构与蒸腾及能量交换过程联系起来的指标。截获光合有效辐射比例（fIPAR）在农学中被广泛用于表征冠层结构和辐射截获，而吸收光合有效辐射比例（fAPAR）则更常用于遥感领域，但二者之间的关系及其对果园灌溉的相关性仍未被充分阐明。本文综述了过去三十年间木本作物冠层光截获的理论基础、方法学发展及灌溉应用。我们综合了经验公式、几何方法、辐射传输模型以及近地和遥感技术的进展，包括半球摄影、LiDAR平台、无人机和卫星衍生产品。本文考察了fIPAR近似fAPAR的条件，揭示出二者的差异在不连续的果园系统中比在均质冠层中更为显著。我们评估了冠层光截获如何支持蒸散估算、作物系数优化和灌溉调度，同时强调其约束的是潜在辐射需求，而非直接表征蒸腾的生理调控。尽管方法学取得了实质性进展，但术语不一致、方案异质性和跨尺度交叉验证有限等问题阻碍了可比性和实际部署。我们提出一个多尺度框架，其中fIPAR作为冠层潜在水分需求的结构-辐射约束，并将其嵌入集成传感与灌溉决策系统。我们认为，厘清fIPAR与fAPAR之间的概念边界，对于将冠层辐射评估转化为在日益增大的气候压力下实现节水型果园管理的决策支持工具至关重要。",null,"Science of Remote Sensing","2026-09-08T00:00:00Z","论文",10,false,79,{"impact":17,"substance":18,"depth":17,"authority":19,"freshness":20,"relevant":21,"comment":22},18,21,14,8,1,"该综述系统梳理了木本作物冠层光截获与吸收的遥感方法，提出多尺度辐射框架以支撑精准灌溉决策，方法学新颖且对果园水分管理有直接指导价值，值得进入每日精选。",[24],{"name":10,"url":6},[26,27,28,29,30],"智慧农业","遥感","果园管理","精准灌溉","冠层光截获",0,"10.1016\u002Fj.srs.2026.100505",{"doi":32,"openalex_id":34,"authors":35,"venue":10,"cited_by_count":31,"oa_url":42,"card":43,"direction":49,"ingested_from":50},"W7211970568",[36,39],{"name":37,"orcid":38},"Mohamed Ibrahim Belaid","https:\u002F\u002Forcid.org\u002F0009-0002-9327-4598",{"name":40,"orcid":41},"Jaume Casadesús","https:\u002F\u002Forcid.org\u002F0000-0001-7036-8212","https:\u002F\u002Fwww.sciencedirect.com\u002Fscience\u002Farticle\u002Fpii\u002FS2666017226001434\u002Fpdf",{"tldr":44,"method":45,"finding":46,"direction":47,"opportunity":48},"综述木质作物冠层光截获与吸收关系，提出多尺度辐射框架支撑精准灌溉。","综述三十年经验公式、辐射传输模型及半球摄影、LiDAR、无人机、卫星遥感。","fIPAR与fAPAR在离散果园差异显著，fIPAR应作为潜在需水约束而非蒸腾调控。","农业遥感与作物表型","可研究果园fIPAR-fAPAR跨尺度转换模型，并耦合遥感与灌溉决策系统验证。","智慧农业 \u002F 农业物联网","openalex","2026-09-11T23:30:17.628726Z"]