Banca de DEFESA: FELIPE ELIA DE ALMEIDA MAGALHAES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FELIPE ELIA DE ALMEIDA MAGALHAES
DATE: 05/07/2023
TIME: 14:00
LOCAL: Online
TITLE:

Water analysis of 3 scenarios. Vegetable agroforestry system, pasture and native forest fragment, in Florestal, MG: a case study

KEY WORDS:

Soil coverage, agroforestry, water availability

PAGES: 91
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Conservação da Natureza
SPECIALTY: Recuperação de Areas Degradadas
SUMMARY:

The increase in agricultural production area in Brazil and the agriculture focus in annual grain crops has consequences for the environment and the way of farm production. Two major consequences are: water scarcity generated by the high demand for the irrigated area and environmental degradation, resulting from the suppression of native vegetation cover and intensive cultivation practices. Faced with this scenario, a stream of thought emerges that seeks ways of growing food that are efficient in conserving water in the environment and that generate environmental benefits or a minimum of negative impacts. In this context, this research evaluates the environmental parameters that indicate water conservation in a production area of the vegetable agroforestry system, a system that has been listed as an alternative practice for recovering the environment. The work was carried out at Sítio das Mangueiras, in Florestal, MG and analyzed whether the vegetable agroforestry system can generate environmental water benefits similar to fragments of native forest. The evaluation of water conservation in the environment was carried out from measurements of soil moisture during the rainy season between the months of November 2021 to January 2022 and during the dry season, from June to August 2022. Soil moisture was determined three times a week. The data obtained for the three scenarios were submitted to analysis of variance and when the F was significant, the means were compared using the Tukey test (5%). The monitoring of water relations in the systems was carried out, allowing an estimate of the amount of water that would be needed for irrigation of a hypothetical agricultural production in the period. To characterize the areas, punctual data on temperature and relative humidity of the air, texture and rate of water infiltration into the soil were collected. Moisture analyzes and the characterization of the scenarios allowed testing whether there are indications of water benefits from the adoption of the vegetable agroforestry system at the site. The proposed analyzes seek to enrich the discussion of the statement attributed to Ernst Götsch, often linked to agroforestry systems: “water is planted”. The conclusion of the study was that the water-soil-plant system in the forest fragment showed soil moisture conservation characteristics significantly superior to the vegetable agroforestry system and the pasture, while there was no significant difference between soil moisture conservation between areas of SAF and pasture.

COMMITTEE MEMBERS:
Externo ao Programa - 2353141 - LEONARDO DUARTE BATISTA DA SILVA - UFRRJExterno à Instituição - BRUNO NERY FERNANDES VASCONCELOS - UFV
Externa à Instituição - PÂMELA GOMES NAKADA FREITAS - UNESP