Impact of Urbanization on the Hydrodynamics of a Water Table in a Floodplain with High Potential for Renaturation

ALTERATIONS IN SOIL PROPERTIES INDUCED BY PASSIVE RESTORATION BY Clidemia urceolata DC IN THE ATLANTIC RAINFOREST OF BRAZIL

“…In locations where these economic cycles occurred, there are damages to nutrient cycling, physicochemical properties, and collection and retention of humidity in the soil, which gradually reduce the capacity for supporting the ecosystems (DALY;FARLEY, 2003;SOUZA et al, 2005) and, consequently, economic activities. Thus, they function as negative feedback mechanisms for controlling the rate of resource depletion and sustain the supply of ecosystem services in different parts of these areas, such as the floodplains (BAPTISTA et al, 2017).…”

Technical contributions to territorial planning and the use of ecosystemic services in a hydrographic basin with a water deficit in the Atlantic Rainforest of Brazil

“…This fact, associated with adequate planning for the orderly advance of urbanization in the floodplains, may enhance services for the renaturation of their hydrological functions (Baptista et al, 2014). Urbanization impairs the hydrological functions and ecosystemic services provided by floodplains (Baptista et al, 2017), as it leaves the soil compacted and impermeable, and also impedes the connection with the river channel. The low proportion of occupied areas demonstrates that it is still possible to adequate the land uses demanded by society with the offer of ecosystemic services, permitting the implantation of renaturation measures to improve the performance of areas with high water production (Baptista e Valcarcel, 2018).…”

“…The fourth group stands out from the rest because of its capacity for retaining water, with a total of 498 floodplains with high potential for water reservation, if the necessary conservational measures are utilized. Considering the high percentage of the surface area occupied by Urbanization, Agriculture and Pasture, Groups A and B do not possess the ability to administer water resources, because the anthropic uses of the floodplains have diminished their capacity for water storage and their ability to offer ecosystemic services (Baptista et al, 2017). In these areas, the elevated levels of anthropization have prioritized strategic solutions, although actions for water renaturation should be reinforced, with a view toward increasing the delay time for filling those floodplains which show a high potential for flooding and water regularization within Group A (a high ACI).…”

“…Floodplains are the first areas to be saturated after intense precipitation and the overflow of river channels in hydrographic basins (Baptista et al, 2014). They accumulate water and gradually release it into channels, filling up with a backflow (Baptista et al, 2017). The ecosystemic services related to water production permit the survival of these ecosystems, in which humans are an integral and inseparable part and are directly benefited.…”

“…The ecosystemic services related to water production permit the survival of these ecosystems, in which humans are an integral and inseparable part and are directly benefited. Among the relevant hydrological ecosystemic services are water regularization, lamination of flooding and amplification of the minimum flows during dry periods (Baptista et al, 2017). The conservation of wet areas in the floodplains is considered to be more efficient from the hydrological point of view, and more economical than the construction of large reservoirs (Baptista and Valcarcel, 2018) when the principles of sustainable development prevail.…”