Avaliação do processo da gestão integrada dos recursos hídricos, estudo de caso: Bacia do Rio Limpopo - Moçambique

Abstract

The present study was carried out in the Limpopo river basin in Mozambique, with the objective of evaluating the integrated management process in the basin, developing studies on the availability, demand and quality of water and, on the other hand, evaluating the effectiveness of the committee in monitoring from the basin. To determine current water consumption, water demand was estimated for different uses along the basin, representative for this study. Therefore, the water demand for agriculture was determined through a survey of the existing irrigation systems where three crops were selected: rice, matuba corn and tomato, since they are the most practiced crops in the region; water demand for domestic use was estimated based on population size and per capita consumption; demand for livestock watering based on typical per capita consumption data for each type of animal in the study area. The results indicate that the amount of water available in the Limpopo River basin is 713.79 Mm 3 /year, sufficient to supply current demands of around 148.55 Mm 3 /year and future demands as per the projection made for the 15-year period, since it will be necessary until 2028 about 218.77 Mm 3 /year of water. With the development of irrigated agriculture in Chokwé, the use of agrochemicals has been verified, in addition to the diverse activities of the population along the basin, which contribute to the increase in the degradation of water quality, since some of the parameters analyzed here (tarvation , calcium and carbonates) present restrictions for the public supply (TRADUÇÃO NOSSA)