Frontiers in earth observation for global soil properties assessment linked to environmental and socio-economic factors
2025
Demattê, José, A.M. | Poppiel, Raoul, R. | Novais, Jean, Jesus Macedo | Rosin, Nícolas, Augusto | Minasny, Budiman | Savin, Igor, Y. | Grunwald, Sabine | Chen, Songchao | Hong, Yongsheng | Huang, Jingyi | Chabrillat, Sabine | van Lier, Quirijn, de Jong | Ben-Dor, Eyal | Gomez, Cecile | Ganlin, Zhang | Amorim, Merilyn, Taynara Accorsi | Vogel, Letícia, Guadagnin | Rosas, Jorge, Tadeu Fim | Milewski, Robert | Gholizadeh, Asa | Zhogolev, Arseniy, V. | Padarian Campusano, José | Ma, Yuxin | Jang, Ho, Jun | Wang, Changkun | Rizzo, Rodnei | Tziolas, Nikolaos | Tsakiridis, Nikolaos | Kodaira, Masakazu | Kumar, D., Nagesh | Dharumarajan, Subramanian | Ge, Yufeng | Vaudour, Emmanuelle | Ayoubi, Shamsollah | Biney, James, Kobina Mensah | Belal, Abdelaziz | Marandi, Salman, Naimi | Hafshejani, Najmeh, Asgari | Kalopesa, Eleni | Mello, Danilo, Cesar | Francelino, Marcio, Rocha | Salama, Elsayed, Said Mohamed | Abdelbaki, Asmaa | Universidade de São Paulo = University of São Paulo (USP) | Sydney Institute of Agriculture ; The University of Sydney | Dokuchaev Soil Science Institute (SSI) ; Russian Academy of Agricultural Sciences | Université russe de l'amitié des peuples = People's Friendship University of Russia = Rossijskij universitet družby narodov [Moscou] (RUDN) | University of Florida [Gainesville] (UF) | Zhejiang University [Hangzhou, China] | Institute of Soil Science ; Chinese Academy of Sciences [Beijing] (CAS) | University of Wisconsin-Madison | German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) | Leibniz Universität Hannover = Leibniz University Hannover | Tel Aviv University (TAU) | Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH) ; Institut de Recherche pour le Développement (IRD)-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Indo-French Cell for Water Sciences = Cellule Franco Indienne de Recherche en Science de l’Eau (IFCWS = CEFIRSE) ; Indian Institute of Science [Bangalore] (IISc Bangalore) | Czech University of Life Sciences Prague (CZU) | NSW Government | Aristotle University of Thessaloniki | Tokyo University of Agriculture and Technology (TUAT) | Indian Institute of Science [Bangalore] (IISc Bangalore) | Indian Institute of Horticultural Research [Bangalore] (ICAR) | University of Nebraska–Lincoln ; University of Nebraska System | Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS) ; AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Isfahan University of Technology | University of Manitoba [Winnipeg] | National Authority for Remote Sensing and Space Sciences (NARSS) | Universidade Federal de Viçosa [Brasil] = Federal University of Viçosa [Brazil] = Université fédérale de Viçosa [Brésil] (UFV [Brésil]) | Fayoum University | This research was supported by the São Paulo Research Foundation (FAPESP) under grants 2014-22262-0 and 2021/05129-8 as well as the from the Center for Carbon Research in Tropical Agriculture (CCARBON) at the University of São Paulo, under grant 2021/10573-
International audience
Show more [+] Less [-]English. Soil has garnered global attention for its role in food security and climate change. Fine-scale soil-mapping techniques are urgently needed to support food, water, and biodiversity services. A global soil dataset integrated into an Earth observation system and supported by cloud computing enabled the development of the first global soil grid of six key properties at a 90-m spatial resolution. Assessing them from environmental and socio-economic perspectives, we demonstrated that 64% of the world's topsoils are primarily sandy, with low fertility and high susceptibility to degradation. These conditions limit crop productivity and highlight potential risks to food security. Results reveal that approximately 900 Gt of soil organic carbon (SOC) is stored up to 20 cm deep. Arid biomes store three times more SOC than mangroves based on total areas. SOC content in agricultural soils is reduced by at least 60% compared to soils under natural vegetation. Most agricultural areas are being fertilized while simultaneously experiencing a depletion of the carbon pool. By integrating soil capacity with economic and social factors, we highlight the critical role of soil in supporting societal prosperity. The top 10 largest countries in area per continent store 75% of the global SOC stock. However, the poorest countries face rapid organic matter degradation. We indicate an interconnection between societal growth and spatially explicit mapping of soil properties. This soil-human nexus establishes a geographically based link between soil health and human development. It underscores the importance of soil management in enhancing agricultural productivity and promotes sustainable-land-use planning.
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