Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia
Soil degradation due to overgrazing and overstocking of animals is a worldwide problem. It is estimated that over 200 million of hectares of grazing and pastureland are degraded in tropical Latin America and the Caribbean (LAC). There are several strategies aimed to restore, rehabilitate or reclaim...
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| Format: | Poster |
| Language: | Inglés |
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Bioversity International and the International Center for Tropical Agriculture
2021
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| Online Access: | https://hdl.handle.net/10568/115811 |
| _version_ | 1855536923041333248 |
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| author | Sotelo Cabrera, Mauricio Efren Vivas Quila, Nelson J. Barahona Rosales, Rolando Cardoso, Juan Andrés Peters, Michael |
| author_browse | Barahona Rosales, Rolando Cardoso, Juan Andrés Peters, Michael Sotelo Cabrera, Mauricio Efren Vivas Quila, Nelson J. |
| author_facet | Sotelo Cabrera, Mauricio Efren Vivas Quila, Nelson J. Barahona Rosales, Rolando Cardoso, Juan Andrés Peters, Michael |
| author_sort | Sotelo Cabrera, Mauricio Efren |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Soil degradation due to overgrazing and overstocking of animals is a worldwide problem. It is estimated that over 200 million of hectares of grazing and pastureland are degraded in tropical Latin America and the Caribbean (LAC). There are several strategies aimed to restore, rehabilitate or reclaim degraded lands based on forages. In soils with inherent low organic matter contents—such as the ones typically found in highly weathered soils of tropical LAC—the use of forage legumes has great potential for soil reclamation while providing feed for livestock. The reasoning behind the use of legumes for soil reclamation is to add nitrogen and readily decomposable material to the low pool of organic matter in the soil. An increment of readily decomposable plant material also increases biological activity which in turn facilitate soil aggregation and thereby, the soil becomes more friable and with greater water holding retention. The present work assessed the soil reclamation potential of four forage legumes: Canavalia brasiliensis CIAT-17009, Centrosema molle CIAT-15160, Desmodium heterocarpon CIAT-13651 and Stylosanthes guianensis CIAT-11995 over a two-year evaluation period in degraded soils along an environmental gradient across three municipalities of the Cauca region, Colombia. Our results showed that all forage legumes exerted a positive effect on some physical, chemical and biological soil properties. Among tested legumes, S. guianensis showed greater impact on soil physical (greater water holding retention and reduction of soil bulk density), chemical (greater organic matter content and phosphorus availability), and biological (greater diversity and abundance of macro fauna in the soil) properties. We hypothesize that greater impact of S. guianensis on improvement of soil properties—and thereby land reclamation potential in highly weathered soils of tropical LAC—is associated to high phosphorus extraction potential as shown elsewhere. |
| format | Poster |
| id | CGSpace115811 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Bioversity International and the International Center for Tropical Agriculture |
| publisherStr | Bioversity International and the International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace1158112025-12-08T10:29:22Z Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia Sotelo Cabrera, Mauricio Efren Vivas Quila, Nelson J. Barahona Rosales, Rolando Cardoso, Juan Andrés Peters, Michael land soil reclamation feed legumes tierras suelo rehabilitación de tierras leguminosas forrajeras canavalia centrosema desmodium stylosanthes guianensis Soil degradation due to overgrazing and overstocking of animals is a worldwide problem. It is estimated that over 200 million of hectares of grazing and pastureland are degraded in tropical Latin America and the Caribbean (LAC). There are several strategies aimed to restore, rehabilitate or reclaim degraded lands based on forages. In soils with inherent low organic matter contents—such as the ones typically found in highly weathered soils of tropical LAC—the use of forage legumes has great potential for soil reclamation while providing feed for livestock. The reasoning behind the use of legumes for soil reclamation is to add nitrogen and readily decomposable material to the low pool of organic matter in the soil. An increment of readily decomposable plant material also increases biological activity which in turn facilitate soil aggregation and thereby, the soil becomes more friable and with greater water holding retention. The present work assessed the soil reclamation potential of four forage legumes: Canavalia brasiliensis CIAT-17009, Centrosema molle CIAT-15160, Desmodium heterocarpon CIAT-13651 and Stylosanthes guianensis CIAT-11995 over a two-year evaluation period in degraded soils along an environmental gradient across three municipalities of the Cauca region, Colombia. Our results showed that all forage legumes exerted a positive effect on some physical, chemical and biological soil properties. Among tested legumes, S. guianensis showed greater impact on soil physical (greater water holding retention and reduction of soil bulk density), chemical (greater organic matter content and phosphorus availability), and biological (greater diversity and abundance of macro fauna in the soil) properties. We hypothesize that greater impact of S. guianensis on improvement of soil properties—and thereby land reclamation potential in highly weathered soils of tropical LAC—is associated to high phosphorus extraction potential as shown elsewhere. 2021-10-25 2021-11-03T15:26:19Z 2021-11-03T15:26:19Z Poster https://hdl.handle.net/10568/115811 en Open Access application/pdf application/pdf Bioversity International and the International Center for Tropical Agriculture Sotelo-Cabrera, M.E.; Vivas, N.; Barahona, R.; Cardoso, J.A.; Peters, M. (2021) Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia. Poster/Abstract prepared for The International Grassland & International Rangeland Kenya 2021 Virtual Congress, 25-29 October 2021. Cali (Colombia): Alliance of Bioversity and CIAT. |
| spellingShingle | land soil reclamation feed legumes tierras suelo rehabilitación de tierras leguminosas forrajeras canavalia centrosema desmodium stylosanthes guianensis Sotelo Cabrera, Mauricio Efren Vivas Quila, Nelson J. Barahona Rosales, Rolando Cardoso, Juan Andrés Peters, Michael Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title | Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title_full | Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title_fullStr | Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title_full_unstemmed | Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title_short | Land reclamation potential of four forage legumes along an environmental gradient in Cauca, Colombia |
| title_sort | land reclamation potential of four forage legumes along an environmental gradient in cauca colombia |
| topic | land soil reclamation feed legumes tierras suelo rehabilitación de tierras leguminosas forrajeras canavalia centrosema desmodium stylosanthes guianensis |
| url | https://hdl.handle.net/10568/115811 |
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