The term "ciliary" is used to be like one born at the edges of the eyelids, protecting the eyes
In the case of the riverside vegetation, it protects the banks of rivers, lakes and sources of silting processes. This "eyelash" prevents natural erosion due to wind, water, etc., or man-made deforestation, inadequate agricultural techniques and irregular buildings, which prevent huge areas from performing the function of absorbing rainwater. This silting does not prevent water from flowing, however, it causes changes in direction, flooding regions and depleting others, as well as increasing the level of waste and submerged land.
The way in which forest fragmentation occurred, especially in the economically more developed regions of the Southeast and South, and ultimately also in the Midwest and North, has damaged native tree vegetation. This process has caused a number of environmental problems, such as the extinction of many species of flora and fauna, climate change and the silting up of water courses. It is patently visible the advance of cities formed on the banks of rivers, suppressing the riverside vegetation; these urban conglomerates suffer from continuous flooding in the rainy season. However, it is not only the process of urban growth that concerns us, but also the construction of roads, mining for sand extraction, agricultural crops, planting of exotic essences such as eucalyptus and pastures used in livestock farming, made in the valley bottoms, near the rivers.
These artificial methods of exploiting large regions, cause numerous conflicts to the environment. The vegetation that grows at the water's edge works by filtering pollutant sediments and agricultural pesticides that are conducted into watercourses, affecting the quantity and quality of this water and, as a consequence, fish and other forms of aquatic fauna and own human population.
The situation of riparian forest in Brazil worries. The Capibaribe River, in Pernambuco; the Araguaia, in Mato Grosso and Goiás; the Parnaíba, in Maranhão and Piauí; the São Francisco, in Minas Gerais and Bahia; the Taquari in the Pantanal and many others suffer from corrosion of their slopes due to waste from slaughterhouses, dumps, urban and industrial sewage. Even Lake Paranoá is silted at least 2 km².
In the State of São Paulo there is a deficit, according to official data, of 100 thousand linear kilometers. A selection of native species to be used in the recovery of these edges is essential, because many do not adapt to flooded soils, while others benefit from these conditions.
Alecrim-de-campinas, angicos, aroeiras, cinnamon, capixingui, capororoca, embaúba, guaçatonga, ingás, ipê-roxo, jatobá, manivá, manacá, paineira, pindaíba d'água, pitanga, tarumã urucum and uvaia, among many others, are indicated for the recovery of riparian forests.