Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon
The aim of this study was to evaluate the effects of burning and manual control of invasive species on a Latossolo Vermelho-Amarelo soil covered with Urochloa brizantha. Five soil samples were collected for pasture and forest, at 0-5 cm depth, to determine the accumulated respiration, microbial biom...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2018-07-01
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| Series: | Acta Agronómica |
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| Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/60000 |
| _version_ | 1811228680982102016 |
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| author | Fabrício Marinho Lisbôa |
| author_facet | Fabrício Marinho Lisbôa |
| author_sort | Fabrício Marinho Lisbôa |
| collection | DOAJ |
| description | The aim of this study was to evaluate the effects of burning and manual control of invasive species on a Latossolo Vermelho-Amarelo soil covered with Urochloa brizantha. Five soil samples were collected for pasture and forest, at 0-5 cm depth, to determine the accumulated respiration, microbial biomass carbon (MBC), mild organic matter, total organic carbon (TOC), water soluble carbon and MBC:TOC ratio. Three groups according soil grass coverage were selected: (1) group I with 33.5% of bare soil, (2) group 2 with 90% coverage and (3) group 3 with 53.4% coverage of invasive species. The highest value of TOC was found in forest (36.52 g/kg). The highest accumulative value of respiration in the soil was observed in group 3 (2.6 mg kg-1) and the highest MBC:TOC ratio was found in forest and group 3 (0.0138 and 0.0156, respectively). The highest water soluble carbon value was observed in the forest (21.08 mg/kg). No significant differences were found in MBC and mild organic matter. The high coverage percentage of U. brizantha favours high values of TOC and water soluble carbon. The greater diversity of species in grass covered soil favoured greater amount of organic matter and increased microbial activity. |
| first_indexed | 2024-04-12T10:01:58Z |
| format | Article |
| id | doaj.art-60e5c729839c43d1a9ac29b155467587 |
| institution | Directory Open Access Journal |
| issn | 0120-2812 2323-0118 |
| language | English |
| last_indexed | 2024-04-12T10:01:58Z |
| publishDate | 2018-07-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Acta Agronómica |
| spelling | doaj.art-60e5c729839c43d1a9ac29b1554675872022-12-22T03:37:32ZengUniversidad Nacional de ColombiaActa Agronómica0120-28122323-01182018-07-0167338939410.15446/acag.v67n3.6000049269Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian AmazonFabrício Marinho Lisbôa0Federal Institute of Education, Science and Technology of Rondônia, BrazilThe aim of this study was to evaluate the effects of burning and manual control of invasive species on a Latossolo Vermelho-Amarelo soil covered with Urochloa brizantha. Five soil samples were collected for pasture and forest, at 0-5 cm depth, to determine the accumulated respiration, microbial biomass carbon (MBC), mild organic matter, total organic carbon (TOC), water soluble carbon and MBC:TOC ratio. Three groups according soil grass coverage were selected: (1) group I with 33.5% of bare soil, (2) group 2 with 90% coverage and (3) group 3 with 53.4% coverage of invasive species. The highest value of TOC was found in forest (36.52 g/kg). The highest accumulative value of respiration in the soil was observed in group 3 (2.6 mg kg-1) and the highest MBC:TOC ratio was found in forest and group 3 (0.0138 and 0.0156, respectively). The highest water soluble carbon value was observed in the forest (21.08 mg/kg). No significant differences were found in MBC and mild organic matter. The high coverage percentage of U. brizantha favours high values of TOC and water soluble carbon. The greater diversity of species in grass covered soil favoured greater amount of organic matter and increased microbial activity.https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/60000Bare soilOrganic carbonUrochloa brizanthaWeed |
| spellingShingle | Fabrício Marinho Lisbôa Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon Acta Agronómica Bare soil Organic carbon Urochloa brizantha Weed |
| title | Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon |
| title_full | Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon |
| title_fullStr | Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon |
| title_full_unstemmed | Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon |
| title_short | Effects of burning and weed control on vegetation cover and soil organic matter compartments in the Brazilian Amazon |
| title_sort | effects of burning and weed control on vegetation cover and soil organic matter compartments in the brazilian amazon |
| topic | Bare soil Organic carbon Urochloa brizantha Weed |
| url | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/60000 |
| work_keys_str_mv | AT fabriciomarinholisboa effectsofburningandweedcontrolonvegetationcoverandsoilorganicmattercompartmentsinthebrazilianamazon |