Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems
This study aimed to investigate the effect of silvicultural systems and of the uses of the soil on the accumulation of the litter, its relation with the recycling and the nutrient supply to the soil, in two areas of Caatinga, in the semi-arid region of Brazil. The first is in the Seridó ecological s...
| Main Authors: | , , |
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| Format: | Online |
| Jezik: | spa |
| Izdano: |
Instituto de Ecología, A.C.
2019
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| Online dostop: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511597 |
| _version_ | 1799769342905155584 |
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| author | Lucena, Marcelo Silva de Alves, Allyson Rocha Bakke, Ivonete Alves |
| author_facet | Lucena, Marcelo Silva de Alves, Allyson Rocha Bakke, Ivonete Alves |
| author_sort | Lucena, Marcelo Silva de |
| collection | MYB |
| description | This study aimed to investigate the effect of silvicultural systems and of the uses of the soil on the accumulation of the litter, its relation with the recycling and the nutrient supply to the soil, in two areas of Caatinga, in the semi-arid region of Brazil. The first is in the Seridó ecological station; the second is on Pedro Cândido farm. The accumulated litter was collected in the rainy and dry periods with the aid of a litter trap of 0.25 m2, with 16 replicates in each area (4 replicates by silvicultural system). The litter was separated into the fractions of branches, leaves + reproductive structure and miscellaneous, and the values obtained for each fraction were submitted to analysis of variance, according to a randomized block design. For the chemical analysis of litter, samples composed by the four replicates of each fraction referring to each silvicultural system were analyzed, in both evaluated periods. In both periods, in the Seridó ecological station there were 1570 kg ha-1 and 1890 kg ha-1 of litter and 44.18 kg ha-1 and 59.05 kg ha-1 of nutrients returned to soil, respectively. In the Pedro Cândido farm, in both periods, there were 2320 kg ha-1 and 2290 kg ha-1 of litter and 55.86 kg ha-1 and 61.98 kg ha-1 of nutrients recycled to the soil, respectively. The largest accumulation of litter in the Pedro Cândido farm occurred due to the greater amount of branches, but this did not result in a better supply of nutrients. After 27 years of interventions, there was no influence of silvicultural systems on the fractions and amount of nutrients. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1597 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-15972022-11-29T22:50:59Z Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems Aporte de mantillo y nutrientes en ecosistema semiárido de Brasil (Caatinga) bajo sistemas silvícolas Lucena, Marcelo Silva de Alves, Allyson Rocha Bakke, Ivonete Alves forest management accumulated biomass macronutrients land uses administración forestal biomasa acumulada macronutrientes usos del suelo This study aimed to investigate the effect of silvicultural systems and of the uses of the soil on the accumulation of the litter, its relation with the recycling and the nutrient supply to the soil, in two areas of Caatinga, in the semi-arid region of Brazil. The first is in the Seridó ecological station; the second is on Pedro Cândido farm. The accumulated litter was collected in the rainy and dry periods with the aid of a litter trap of 0.25 m2, with 16 replicates in each area (4 replicates by silvicultural system). The litter was separated into the fractions of branches, leaves + reproductive structure and miscellaneous, and the values obtained for each fraction were submitted to analysis of variance, according to a randomized block design. For the chemical analysis of litter, samples composed by the four replicates of each fraction referring to each silvicultural system were analyzed, in both evaluated periods. In both periods, in the Seridó ecological station there were 1570 kg ha-1 and 1890 kg ha-1 of litter and 44.18 kg ha-1 and 59.05 kg ha-1 of nutrients returned to soil, respectively. In the Pedro Cândido farm, in both periods, there were 2320 kg ha-1 and 2290 kg ha-1 of litter and 55.86 kg ha-1 and 61.98 kg ha-1 of nutrients recycled to the soil, respectively. The largest accumulation of litter in the Pedro Cândido farm occurred due to the greater amount of branches, but this did not result in a better supply of nutrients. After 27 years of interventions, there was no influence of silvicultural systems on the fractions and amount of nutrients. El objetivo de este trabajo fue investigar el efecto de sistemas silvícolas y de los usos del suelo sobre la acumulación de mantillo y su relación con la recirculación de nutrientes al suelo, en dos áreas del bioma Caatinga, en la zona semiárida de Brasil. La primera se encuentra en la estación ecológica del Seridó; la segunda, en la hacienda Pedro Cândido. El mantillo se recolectó en los períodos lluvioso y seco, con ayuda de una trampa de 0.25 m2, con 16 repeticiones en cada área (cuatro repeticiones por sistema silvícola). El mantillo recolectado se separó en las fracciones: ramas, hojas + estructuras reproductivas y miscelánea; los valores obtenidos para cada fracción se sometieron al análisis de varianza, bajo un diseño experimental de bloques al azar. Para el análisis químico del mantillo, se analizaron muestras compuestas por las cuatro repeticiones de cada fracción referente a cada sistema silvícola, en los dos períodos. En ambos períodos, en la estación ecológica del Seridó hubo 1570 kg ha-1 y 1890 kg ha-1 de mantillo y 44.18 kg ha-1 y 59.05 kg ha-1 de nutrientes devueltos al suelo, respectivamente. En la hacienda Pedro Castillo, en ambos períodos, hubo 2320 kg ha-1 y 2290 kg ha-1 de mantillo y 55.86 kg ha-1 y 61.98 kg ha-1 de nutrientes devueltos al suelo, respectivamente. El mayor aporte de mantillo en la hacienda Pedro Castillo se debió a la mayor cantidad de ramas, pero esto no resultó en un mejor aporte de nutrientes. Después de 27 años de las intervenciones, no hubo influencia de los sistemas silvícolas sobre las fracciones y cantidad de nutrientes. Instituto de Ecología, A.C. 2019-05-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf application/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511597 10.21829/myb.2019.2511597 Madera y Bosques; Vol. 25 No. 1 (2019): Spring 2019 Madera y Bosques; Vol. 25 Núm. 1 (2019): Primavera 2019 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511597/1860 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511597/1918 Derechos de autor 2019 Madera y Bosques |
| spellingShingle | Lucena, Marcelo Silva de Alves, Allyson Rocha Bakke, Ivonete Alves Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title | Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title_full | Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title_fullStr | Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title_full_unstemmed | Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title_short | Litter and nutrient deposition in semi-arid ecosystem of Brazil (Caatinga) under silvicultural systems |
| title_sort | litter and nutrient deposition in semi-arid ecosystem of brazil (caatinga) under silvicultural systems |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511597 |
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