{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T21:29:21Z","timestamp":1772227761256,"version":"3.50.1"},"reference-count":83,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2023,12,11]],"date-time":"2023-12-11T00:00:00Z","timestamp":1702252800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42125105"],"award-info":[{"award-number":["42125105"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["42071388"],"award-info":[{"award-number":["42071388"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Crop growth stages are integral components of plant phenology and are of significant ecological and agricultural importance. While the use of remote sensing methods for phenology identification in cropland ecosystems has been extensively explored in previous studies, the focus has often been on land surface phenology, primarily related to the start and end of the growing season. In contrast, the monitoring of crop growth within an agronomic framework has been limited, particularly in the context of recently developed solar-induced chlorophyll fluorescence (SIF) data. Additionally, some critical growth stages have not received adequate attention or evaluation. This study aims to assess the utility of SIF data, collected from both ground and satellite measurements, for identifying critical crop growth stages within the realm of remote sensing phenological estimation. A comparative analysis was conducted using enhanced vegetation index (EVI) data at the Shangqiu site in the North China Plain from 2018 to 2022. Both SIF and EVI time-series data, obtained from ground and satellite sources, undergo a comprehensive phenological estimation framework encompassing pre-processing, modeling, and transition characterization. This approach involves reconciling time-series phenological patterns with crop growth stages, revealing the necessity of redefining the mapping relationship between these two fundamental concepts. After preprocessing the time-series data, the framework incorporates the phenological modeling process employing two double logistic models and a spline model for comparison. Additionally, it includes phenological transition characterization using four different methods. Consequently, each input dataset undergoes an assessment, resulting in 12 sets of estimations, which are compared to select the ideal estimation portfolio for identifying the growth stages of maize and winter wheat. Our findings highlight the efficacy of SIF data in accurately identifying the growth stages of maize and winter wheat, achieving remarkable results with an R-square exceeding 0.9 and an RMSE of less than 1 week for key growth stages (KGSs). Notably, SIF data demonstrate superior accuracy, robustness, and sensitivity to phenological events when compared to EVI data. This study establishes an estimation portfolio utilizing SIF data, involving the Gu model, a double logistic model, as the preferred phenological modelling method together with various compositing methods and transition characterization methods, suitable for most KGSs. These findings create opportunities for future research aimed at enhancing and standardizing crop growth stage identification using remote sensing data for a wide range of KGSs.<\/jats:p>","DOI":"10.3390\/rs15245689","type":"journal-article","created":{"date-parts":[[2023,12,11]],"date-time":"2023-12-11T13:18:21Z","timestamp":1702300701000},"page":"5689","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Identifying Crop Growth Stages from Solar-Induced Chlorophyll Fluorescence Data in Maize and Winter Wheat from Ground and Satellite Measurements"],"prefix":"10.3390","volume":"15","author":[{"given":"Yuqing","family":"Hou","sequence":"first","affiliation":[{"name":"International Institute for Earth System Sciences, Nanjing University, Nanjing 210023, China"},{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"}]},{"given":"Yunfei","family":"Wu","sequence":"additional","affiliation":[{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"},{"name":"Huangshan Park Ecosystem Observation and Research Station, Ministry of Education, Huangshan 245899, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8484-407X","authenticated-orcid":false,"given":"Linsheng","family":"Wu","sequence":"additional","affiliation":[{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"},{"name":"Huangshan Park Ecosystem Observation and Research Station, Ministry of Education, Huangshan 245899, China"}]},{"given":"Lei","family":"Pei","sequence":"additional","affiliation":[{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"},{"name":"Huangshan Park Ecosystem Observation and Research Station, Ministry of Education, Huangshan 245899, China"}]},{"given":"Zhaoying","family":"Zhang","sequence":"additional","affiliation":[{"name":"International Institute for Earth System Sciences, Nanjing University, Nanjing 210023, China"},{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"}]},{"given":"Dawei","family":"Ding","sequence":"additional","affiliation":[{"name":"National Agro-Ecological Observation and Research Station of Shangqiu, Institute of Farmland Irrigation of CAAS, Shangqiu 476002, China"}]},{"given":"Guangshuai","family":"Wang","sequence":"additional","affiliation":[{"name":"National Agro-Ecological Observation and Research Station of Shangqiu, Institute of Farmland Irrigation of CAAS, Shangqiu 476002, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3880-9855","authenticated-orcid":false,"given":"Zhongyang","family":"Li","sequence":"additional","affiliation":[{"name":"National Agro-Ecological Observation and Research Station of Shangqiu, Institute of Farmland Irrigation of CAAS, Shangqiu 476002, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8286-300X","authenticated-orcid":false,"given":"Yongguang","family":"Zhang","sequence":"additional","affiliation":[{"name":"International Institute for Earth System Sciences, Nanjing University, Nanjing 210023, China"},{"name":"Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China"},{"name":"Huangshan Park Ecosystem Observation and Research Station, Ministry of Education, Huangshan 245899, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1146\/annurev.energy.32.053006.141119","article-title":"Feedbacks of Terrestrial Ecosystems to Climate Change","volume":"32","author":"Field","year":"2007","journal-title":"Annu. 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