Journal of Agriculture and Environmental Sciences June 2019, Vol. 8, No. 1, pp. 82-103 ISSN: 2334-2404 (Print), 2334-2412 (Online) Copyright © The Author(s). All Rights Reserved. Published by American Research Institute for Policy Development DOI: 10.15640/jaes.v8n1a9 URL: https://doi.org/10.15640/jaes.v8n1a9 The Relief and Spatial Expression of the Dams of the Rio Coreaú River Basin, Ceará, Brasil Ms. Marcélia Vieira Torres 1 , PhD José Falcão Sobrinho 2 Abstract The article sought to discuss and understand how the functions of the peoples (Manhoso, Várzea da Volta, Angicos and Gangorra), inserted in different relief comparisons of the Korea River Basin-CE, Water during the rainy season, and then to be Used in the dry season. In this case, the analysis of physical and chemical sensors of water and soil in order to identify how the effects on the dynamics of the natural processes caused by the human application by the use of the soil with the reflections on the water quality of the Their effects. Intrinsic functions of environmental systems as well as repercussions for a society. Keywords: sugar, relief, chemical and chemical indicators 1. Introduction The research proposed an integrated study of the natural and social elements from the geosystemic approach, taking as its starting point the relief in the context of a river basin. From the relief is understood the relations between the other natural elements and the expression of their use by the action of society. That said, we have the highlight of the activities developed by society generating dynamic scenarios in the landscape. The hydrographic basin of the Coreaú-CE was analyzed, emphasizing the physical characteristics of its different forms of relief and the intrinsic relations that surround them, giving a character of uniqueness to the watershed, in particular the use of the weirs and occupation of the areas (TORES e FALCÃO SOBRINHO, 2015). In this context, we sought to discuss and understand the functions of the reservoirs (Manhoso), located in the municipality of Viçosa do Ceará, on a sedimentary plateau; the Angicos dam, located in the municipality of Coreaú and the Várzea da Volta dam, in the municipality of Moraújo, both on the sertaneja surface and, finally, the Gangorra dam, in the municipality of Granja, located in the coastal zone. It is observed that the dams in question are inserted in different geomorphological compartments, however, it retains water during the rainy season, to be used during the dry season. Factor that becomes essential due to the scarcity verified in the municipalities of the referred basin. In this case, they offer support to the population, because water is synonymous with life. To paraphrase Coelho Netto (1998, p. 93), water constitutes one of the most important physical elements in the composition of the terrestrial landscape, interconnecting phenomena of the lower atmosphere and the lithosphere, and interfering in plant, animal and human life through interaction with the other components of your drainage environment. Among the multiple functions of the water, its function as an agent that models the land surface, controlling both the formation and the mechanical behavior of the soil and rock layers deserves to be highlighted. 2. Characterization of the Study Area The watershed of the Coreaú is located in the north-western portion of the State of Ceará, limited geographically to the south, by the Poti-Longá and Acaraú basins, to the west the State of Piauí, to the east the basin of the Acaraú River and to the north by the Ocean Atlantic. It has a linear coast extension of approximately 130 km, represented in (figure 01). It is composed of the area drained by the Coreaú river and its tributaries, as well as sub- basins formed by the Timonha, Tapuio, Pesqueiro, Jaguarapari, Corrente Laranja, Lago Seco, Mourão, Forquilha, Poeira, Mourão and Prata rivers totaling 10,657 km² 7% of the territory of Ceará (DNOCS-1968). 1 Universidade Estadual Vale do Acaraú/UVA, Sobral, Ceará, Brasil. E-mail: marcellya.torres@hotmail.com 2 Universidade Estadual Vale do Acaraú/UVA, Sobral, Ceará, Brasil. E-mail: falcao.sobral@gmail.com