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| ASSAD, E. D.; PINTO, H. S.; MARTINS, S. C.; GROPPO, J. D.; SALGADO, P. R.; EVANGELISTA, B.; VASCONCELLOS, E.; SANO, E. E.; PAVÃO, E.; LUNA, R.; CAMARGO, P. B.; MARTINELLI, L. A.. |
| Abstract. In this paper we calculated soil carbon stocks in Brazil using 17 paired sites where soil stocks were determined in native vegetation, pastures and crop-livestock systems (CPS), and in other regional samplings encompassing more than 100 pasture soils, from 6.58° S to 31.53° S, involving three major Brazilian biomes: Cerrado, Atlantic Forest, and the Pampa. The average native vegetation soil carbon stocks at 10, 30 and 60 cm soil depth were equal to approximately 29, 64, and 92 Mg ha-1, respectively. In the paired sites, carbon losses of 7.5 Mg ha-1 and 11.6 Mg ha-1 in CPS systems were observed at 10 cm and 30 cm soil depths, respectively. In pasture soils, carbon losses were similar and equal to 7.5 Mg ha-1 and 11.0 Mg ha-1 at 10 cm and 30 cm... |
| Tipo: Artigo de periódico |
Palavras-chave: Solo de pastagem; Estoque de carbono no solo; Carbon stocks; Soils.; Uso da Terra.; Land use.. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/968591 |
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| CONCEIÇÃO, M. C. G. da; MATOS, E. da S.; BIDONE, E. D.; RODRIGUES, R. de A. R.; CORDEIRO, R. C.. |
| Several studies indicate that the use of integrated production systems, such as integrated crop-livestock-forest systems (ICLF), improves the quality of the soil and consequently the sequestration of organic carbon in the soil. In this way, this work aims to evaluate the carbon stocks in soil under different management systems in the Cerrado/Amazonia transition zone, namely: ICLF, no-tillage, pasture and eucalyptus plantation. For this, two soil samplings were done in 2011 and 2014, in the 0 - 5, 5 - 10 and 10 - 30 cm layers. Soil carbon and nitrogen stocks were analyzed. ICLF system was the treatment that obtained the highest percentage of carbon gain (7.8%) after three years of establishment which represents to an increase of 5.5 Mg·ha-1. Management... |
| Tipo: Artigo de periódico |
Palavras-chave: Carbono do solo; Integração lavoura-pecuária-floresta; Gestão do solo; ILPF; Integrated Crop-Livestock-Forest System.; Carbon stocks; Agricultura; Soil management.; Carbon sinks; Agriculture. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1078539 |
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| Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Pauletto,Eloy Antonio; Pinto,Luiz Fernando Spinelli; Pillon,Clenio Nailto; Penning,Letiane Helwig; Santos,Daiane Carvalho dos. |
| Soils constructed after mining often have low carbon (C) stocks and low quality of organic matter (OM). Cover crops are decisive for the recovery process of these stocks, improving the quality of constructed soils. Therefore, the goal of this study was to evaluate the effect of cover crops on total organic C (TOC) stocks, C distribution in physical fractions of OM and the C management index (CMI) of a soil constructed after coal mining. The experiment was initiated in 2003 with six treatments: Hemarthria altissima (T1), Paspalum notatum (T2), Cynodon dactylon (T3), Urochloa brizantha (T4), bare constructed soil (T5), and natural soil (T6). Soil samples were collected in 2009 from the 0.00-0.03 m layer, and the TOC and C stocks in the physical particle size... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recovery of degraded areas; Cover crops; Carbon stocks; Lability. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300895 |
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| SIGNOR, D.; DEON, M. D.; CAMARGO, P. B. de; CERRI, C. E. P.. |
| Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, secondary vegetation, fruit orchards, horticultural areas, degraded pasture, improved pasture, and fields with annual crops) in the eastern Amazon. Improved pasture had higher soil C stock than the other land uses and was similar to the native vegetation, and also presented the highest quantity of C in a stable form in the soil (fraction < 53 ìm). According to the C management index, improved pasture is the most... |
| Tipo: Artigo de periódico |
Palavras-chave: Estoque de carbono; Mudanças no uso da terra; Fracionamento físico; Indice de gerenciamento de carbono; Biomassa microbiana; Sustentabilidade; Carbon management index; Carbon stocks; Changes in land use; Physical fractionation.; Solo; Pastagem nativa; Matéria Orgânica; Uso da Terra.; Microbial biomass.. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1089385 |
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| Alverga, Paula; Universidade Federal do Acre, Brazil;; Barnes, Grenville; School of Forest Resources and Conservation, University of Florida, USA; gbarnes@ufl.edu; Brasil da Silva, Izaias; Universidade Federal do Acre, Brazil;; Castro, Wendeson; Universidade Federal do Acre, Brazil;; de Souza Moll, Iracema; Universidade Federal do Acre, Brazil;; Medeiros, Herison; Universidade Federal do Acre, Brazil; medeiros.herison@gmail.com; Murphy, Skya; Department of Biology, University of Florida, USA;; Rockwell, Cara A.; School of Forest Resources and Conservation, University of Florida, USA; rockwell_cara@yahoo.com; Shenkin, Alexander; School of Forest Resources and Conservation, University of Florida, USA; Department of Biology, University of Florida, USA; ashenkin@ufl.edu; Silveira, Marcos; Universidade Federal do Acre, Brazil;; Southworth, Jane; Department of Geography and Land Use and Environmental Change Institute, University of Florida, USA; jsouthwo@geog.ufl.edu; Perz, Stephen; Department of Sociology and Criminology & Law, University of Florida, USA; sperz@soc.ufl.edu. |
| Contemporary conservation interventions must balance potential trade-offs between multiple ecosystem services. In tropical forests, much attention has focused on the extent to which carbon-based conservation provided by REDD+ policies can also mitigate biodiversity conservation. In the nearly one-third of tropical forests that are community owned or managed, conservation strategies must also balance the multiple uses of forest products that support local livelihoods. Although much discussion has focused on policy options, little empirical evidence exists to evaluate the potential for trade-offs among different tropical forest value components. We assessed multiple components of forest value, including tree diversity, carbon stocks, and both timber and... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Aç Ai; Biodiversity conservation; Brazil nut; Carbon stocks; Livelihood; NTFP; REDD; Rubber; Timber; Tropical rainforest. |
| Ano: 2014 |
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