Comparison of MIR Spectral Signatures of Soils from Acacia, Eucalyptus, and Cassava Plantations in the Tropical Region of the Batéké Plateau (Republic of Congo)  

作　　者：Hugues-Yvan Gomat Darius Martin Bengo Suspense Averti Ifo Clevie Thertully Balongana Mayassi Emmanuelle Bokaketi Ulrich Mayinguidi Prosper Mabiala Philippe Santenoise Charles Epa Hugues-Yvan Gomat;Darius Martin Bengo;Suspense Averti Ifo;Clevie Thertully Balongana Mayassi;Emmanuelle Bokaketi;Ulrich Mayinguidi;Prosper Mabiala;Philippe Santenoise;Charles Epa(Ecole Normale Suprieure, Brazzaville, Rpublique du Congo;Centre de Recherche sur la Durabilit et Productivit des Plantations Industrielles, Pointe-Noire, Rpublique du Congo;Service Nationale de Reboisement, Ministre de lconomie forestire, Brazzaville, Rpublique du Congo;Unit Biogochimie des Ecosystmes forestiers, Centre INRAE Grand-Est, Nancy, France)

机构地区：[1]Ecole Normale Suprieure, Brazzaville, Rpublique du Congo [2]Centre de Recherche sur la Durabilit et Productivit des Plantations Industrielles, Pointe-Noire, Rpublique du Congo [3]Service Nationale de Reboisement, Ministre de lconomie forestire, Brazzaville, Rpublique du Congo [4]Unit Biogochimie des Ecosystmes forestiers, Centre INRAE Grand-Est, Nancy, France

出　　处：《Open Journal of Ecology》2024年第12期914-923,共10页生态学期刊(英文)

摘　　要：This study examines the effects of Acacia, Eucalyptus, and Cassava plantations on soil chemical composition in the Batéké Plateau, a tropical savanna region in Congo-Brazzaville. Using mid-infrared (MIR) spectroscopy, the research reveals distinct spectral signatures for each type of plantation, highlighting notable variations in soil chemical properties. Soils under Acacia exhibit increased organic nitrogen content, enhancing fertility through atmospheric nitrogen fixation. In contrast, soils under eucalyptus contain lignified organic matter, which is less biodegradable and limits immediate nutrient access but may contribute to long-term carbon storage. Cassava soils show high levels of silicates and labile components, indicating a risk of rapid nutrient depletion without proper management. The results underscore the importance of carefully selecting plant species to achieve sustainable soil management objectives and suggest that a combined MIR and NIR spectroscopy approach could enrich analyses by providing a more comprehensive view of soil variations based on vegetation cover.This study examines the effects of Acacia, Eucalyptus, and Cassava plantations on soil chemical composition in the Batéké Plateau, a tropical savanna region in Congo-Brazzaville. Using mid-infrared (MIR) spectroscopy, the research reveals distinct spectral signatures for each type of plantation, highlighting notable variations in soil chemical properties. Soils under Acacia exhibit increased organic nitrogen content, enhancing fertility through atmospheric nitrogen fixation. In contrast, soils under eucalyptus contain lignified organic matter, which is less biodegradable and limits immediate nutrient access but may contribute to long-term carbon storage. Cassava soils show high levels of silicates and labile components, indicating a risk of rapid nutrient depletion without proper management. The results underscore the importance of carefully selecting plant species to achieve sustainable soil management objectives and suggest that a combined MIR and NIR spectroscopy approach could enrich analyses by providing a more comprehensive view of soil variations based on vegetation cover.

关 键 词：MIR Spectroscopy ACACIA EUCALYPTUS CASSAVA Soil Fertility 

分 类 号：S15[农业科学—土壤学]