CO2 efflux, physical attribute and soil carbon in agro-ecological management systems
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 2
Abstract
Evaluation of soil in agroecological systems is of fundamental importance to check the influence of this type of soil management. The aim of this study is to evaluate the physical, CO2 efflux and the carbon in different management conditions. The survey area belongs to Alternative Technology Services Unit, located in Gloria do Goitá, Pernambuco, which develops techniques based on agro-ecological principles for sustainable development in the rural environment. Three areas were selected: Permaculture, Culture rotation and Forest in regeneration, for each of the areas disturbed and undisturbed soil samples were collected from two layers 0-20 and 20-40 cm. The variables analyzed were: grain size, density, soil porosity, Total Carbon (TC) and Soil Organic Matter (SOM). It was also performed measuring the soil CO2 efflux, using a specific camera to soil coupled to Irga 6400XT. The results were analyzed by comparison of means using the Scott-Knot test at a probability of 5%. The permaculture and crop rotation had physical attributes values that approached the forest condition. With respect to C and MOS levels, the forest area had the highest averages, while for soil CO2 efflux, the areas managed obtained higher averages, demonstrating the benefits of these managements to improve soil quality.
Authors and Affiliations
Maria Isabel de Souza Costa, Thais Emanuelle Monteiro dos Santos Souza, Edivan Rodrigues de Souza, Jailson Cavalcante Cunha, Lucas Yago de Carvalho Leal
Keywords
Related Articles
- EP ID EP253798
- DOI 10.18378/rvads.v12i2.4163
- Views 120
- Downloads 0
Natural regeneration of Anadenanthera colubrina (Vell.) Brenan Fabaceae in Altitude Swamp in the county of Bananeiras, Paraíba, Brazil
The Atlantic Forest is currently the most threatened biome due to various anthropogenic pressures. The destruction of habitats linked to fragmentation causes serious consequences for any type of vegetation, especially in...
The traditional knowledge about melitophile plants in rural communities in the city of Sigefredo Pacheco, Piauí
The knowledge about plants with melitophile potential is highlighted in the research field, this way; these pieces of information are collected in the rural areas. Thus, ethnobotany, which studies the relation between hu...
Substrates and moisture content for seed germination test of Apuleia leiocarpa (Vog.) Macbr.
The substrate and amount of water used are determinant factors for conducting the germination test, affecting the growth of the embryo and the formation of the seedling. The objective of this work was to identify the ide...
Economic viability and performance of an agricultural tractor using sunflower oil and diesel
In studies concerning the use, as an fuel for agricultural tractors, of the mixture of diesel with vegetable oil, it must be verified the economic viability regarding its use as renewable fuels and the performance of agr...
Postharvest of juazeiro fruits at different maturation stages
The juazeiro (Ziziphus joazeiro Mart.) popularly known as juá is a plant typical of the Brazilian Northeast, widely used in animal feeding in times of prolonged drought, however, its fruits are little studied and charact...