Banca de DEFESA: DILMA ÁZIRA ISMAEL CARLOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : DILMA ÁZIRA ISMAEL CARLOS
DATE: 11/12/2023
TIME: 14:00
LOCAL: Remoto
TITLE:

INDICATORS OF EFFICIENT USE OF WATER IN IRRIGATED AREAS ON FAMILY FARMING UNDER WEATHER CONDITIONS IN BRAZILIAN AMAZON AND MOZAMBIQUE

KEY WORDS:

Water risk. Rainwater reuse. Knowledge. Santarém, Maputo

PAGES: 191
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

Water is essential to life, being one of the most important natural resources in agri-cultural production. Water scarcity in the soil is among the main limitations in expressing the productive potential of a crop. Among the decision-making strategies in periods of water defi-cits is the adoption of irrigation systems to guarantee productivity in each agricultural harvest. The problem lies in water management, as this decision does not require a holistic and multi-disciplinary vision to guarantee the efficient use of water in the production of food that sup-plies markets at different levels, from local, regional and even on a global scale. Thus, the ob-jective was to analyze indicators of efficient water use under climatic conditions in the East-ern Amazon and Southern Africa to identify possible irrigation strategies with clay pots in family-based agriculture. Quantitative and qualitative methods were adopted, where, from diagnostic tools using secondary data, qualitative, quantitative, regulatory and reputational risk indicators of the river basins that supply the agricultural areas of the two countries (Brazil and Mozambique) were obtained, showing that the risks between the river basins are different, where Santarém was in the low to medium category and Maputo was at high risk, signaling greater attention to the use of water resources in irrigated crops in Maputo. However, the two municipalities have a high regulatory and reputational risk, highlighting vulnerabilities in agri-cultural practices regarding the contamination of springs and groundwater. After authorization by the ethics committee, primary data was collected to diagnose the profile of hosticultures in the Infulene Valley, around Maputo. It was observed that 100% of those interviewed stated that they use manual irrigation throughout the year, from groundwater, rivers and a smaller proportion use rainwater. Irrigation is predominantly carried out in the morning. From the in-stallation of a didactic test, it was verified that in Maputo there is raw material for the imple-mentation of units similar to the Technological Reference Unit (URT), installed since 2016 in the community of Lavras, in Santarém in the west of the state of Pará. It was found that the knowledge generated from the installation of the system that reuses rainwater and has a solu-tion that supplies the pots autonomously has become a typical space in “Ba”, where knowledge has been evolving and consolidating every year in the space irrigated with clay pots. The production indicators with the reuse of rainwater in clay pots demonstrate that the technology is in line with SDGs 2, 6, 13 and 17. It is concluded that the adoption of irrigation technology with clay pots is a strategy not only of sustainable production, but above all due to the potential for agricultural production, even under extreme climatic conditions with drastic reductions in rainfall supply. The maintenance of species producing all year round confirms that irrigation with clay pots tends to increase the resilience and adaptation capacity of family farmers both in current conditions and in climate change scenarios.

COMMITTEE MEMBERS:
Presidente - ***.720.282-** - LUCIETA GUERREIRO MARTORANO - EMBRAPA
Interno - 1846798 - CELSON PANTOJA LIMA
Interno - 1776327 - THIAGO ALMEIDA VIEIRA
Externo à Instituição - CARLOS TADEU DOS SANTOS DIAS
Externo à Instituição - MALIEM PIERRE MATUNGUL
Externa à Instituição - MARIA DE LOURDES BERNARTT - UTFPR