Potential for nutrient contribution from litter in a seasonally dry forest
| Autor: | Lindbergue Araújo Crisóstomo, Eunice Maia de Andrade, Meilla Marielle Araújo Rodrigues, José Frédson Bezerra Lopes |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Marketing
Pharmacology Tropical and subtropical dry broadleaf forests Organizational Behavior and Human Resource Management Nutrient cycle Strategy and Management Phosphorus Pharmaceutical Science chemistry.chemical_element Forestry Vegetation Plant litter Nutrient Animal science chemistry Drug Discovery Litter Environmental science Ecosystem |
| Zdroj: | Revista Agro@mbiente On-line; v. 11, n. 4 (2017): outubro-dezembro; 269-276 REVISTA AGRO@MBIENTE ON-LINE; v. 11, n. 4 (2017): outubro-dezembro; 269-276 AGRO@MBIENTE JOURNALRAGR; Vol. 11 No. 4 (2017): outubro-dezembro; 269-276 REVISTA AGRO@MBIENTE ON-LINE; Vol. 11 Núm. 4 (2017): outubro-dezembro; 269-276 REVISTA AGRO@MBIENTE ON-LINE; v. 11 n. 4 (2017): outubro-dezembro; 269-276 Agro@mbiente on-line Universidade Federal de Roraima (UFRR) instacron:UFRR |
| ISSN: | 1982-8470 |
| Popis: | Litter is the most important way of transferring essential elements from vegetation to the soil. This is due to nutrient cycling, a process by which decomposition of the litter adds nutrients to the soil. An understanding of this process goes beyond the need for knowledge of nutrient dynamics, since it is a question of understanding the way in which ecosystems function in the search for a correct use of natural resources. The aim of this study was to quantify the average concentrations of the following nutrients: Nitrogen (N), phosphorus (P), Potassium (K), and Organic Carbon (C) in litter remaining in an area of tropical dry forest - Caatinga. The work was carried out on the Elias Andrade Private Natural Heritage Reserve (PNHR) of the Irmãos Andrade Farm, located in the semi-arid region of the State of Ceará. In February 2009, 48 nylon litter bags were randomly distributed, each containing 30 g of litter collected in the area of the Reserve. Every two months, from February 2009 to January 2011, four bags were randomly collected. Over time, variations were seen in the average levels of N, P and K for the litter in the nylon bags. The nutrient with the greatest contribution to the system from the litter was Nitrogen, followed by K and P. The highest N content occurred at the beginning of the experiment. The C content decreased over the study period. The mean C to N ratio of the litter was 21, which was in the borderline range between the processes of mineralisation and immobilisation. Litter is the most important way of transferring essential elements from vegetation to the soil. This is due to nutrient cycling, a process by which decomposition of the litter adds nutrients to the soil. An understanding of this process goes beyond the need for knowledge of nutrient dynamics, since it is a question of understanding the way in which ecosystems function in the search for a correct use of natural resources. The aim of this study was to quantify the average concentrations of the following nutrients: Nitrogen (N), phosphorus (P), Potassium (K), and Organic Carbon (C) in litter remaining in an area of tropical dry forest - Caatinga. The work was carried out on the Elias Andrade Private Natural Heritage Reserve (PNHR) of the Irmãos Andrade Farm, located in the semi-arid region of the State of Ceará. In February 2009, 48 nylon litter bags were randomly distributed, each containing 30 g of litter collected in the area of the Reserve. Every two months, from February 2009 to January 2011, four bags were randomly collected. Over time, variations were seen in the average levels of N, P and K for the litter in the nylon bags. The nutrient with the greatest contribution to the system from the litter was Nitrogen, followed by K and P. The highest N content occurred at the beginning of the experiment. The C content decreased over the study period. The mean C to N ratio of the litter was 21, which was in the borderline range between the processes of mineralisation and immobilisation. |
| Databáze: | OpenAIRE |
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