3.3. Blowout
The control of the aeolian deflation corridor located in the study area is presented in Fig. 2a. The corridor was carried out with the vegetation planting of Panicum sp. CTX0294885 ( Fig. 9). This species possesses long rhizomes, which, once buried, develop laterally, forming way a net that helps the dunes fixation (Cordazzo et al., 2006). Once adapted to the aeolian abrasion and burying, it inhibits the competing species invasion, and these results can be improved by inputs of nutrients to the system (Costa et al., 1984).
Fig. 9. Blowout area photographs a) Vegetation planting in order to reduce blowout (December 21, 2009). b) Accumulation of considerable sediment along the planted vegetation after 12 months of planting (November 25, 2010).Figure optionsDownload full-size imageDownload as PowerPoint slide
The seedlings manually pulled from the dunes area which was removed during the piping implementation, and replanted directly along the deflation corridor, presented a high level of survival. The DTM presented on Fig. 5 demonstrates a topography elevation and the erosive feature narrowing (deflation corridor), being the gain in the first 12 months of 126.86 m3 of sediment.
The control of the aeolian deflation corridor located in the study area is presented in Fig. 2a. The corridor was carried out with the vegetation planting of Panicum sp. CTX0294885 ( Fig. 9). This species possesses long rhizomes, which, once buried, develop laterally, forming way a net that helps the dunes fixation (Cordazzo et al., 2006). Once adapted to the aeolian abrasion and burying, it inhibits the competing species invasion, and these results can be improved by inputs of nutrients to the system (Costa et al., 1984).
Fig. 9. Blowout area photographs a) Vegetation planting in order to reduce blowout (December 21, 2009). b) Accumulation of considerable sediment along the planted vegetation after 12 months of planting (November 25, 2010).Figure optionsDownload full-size imageDownload as PowerPoint slide
The seedlings manually pulled from the dunes area which was removed during the piping implementation, and replanted directly along the deflation corridor, presented a high level of survival. The DTM presented on Fig. 5 demonstrates a topography elevation and the erosive feature narrowing (deflation corridor), being the gain in the first 12 months of 126.86 m3 of sediment.