Journal . Fig. 9. Scour Caused by Vertical Sheet Fig. 10. Reinforced Concrete Sea Wall. 188 WINNING OF TIDAL LANDS IN BRITISH GUIANA. taking place. On the east coast of British Guiana in all placeswhere there were wave-screens and active erosion was takingplace, the result of the wave-action was gradually to deepen theshore in front until the waves, owing to the increased depth ofwater, were able to break over the screen with considerable forceand damage or breach the earth dam behind. The investigationsmade showed that on the British Guiana coast vegetation is usefulin holding and bu
Journal . Fig. 9. Scour Caused by Vertical Sheet Fig. 10. Reinforced Concrete Sea Wall. 188 WINNING OF TIDAL LANDS IN BRITISH GUIANA. taking place. On the east coast of British Guiana in all placeswhere there were wave-screens and active erosion was takingplace, the result of the wave-action was gradually to deepen theshore in front until the waves, owing to the increased depth ofwater, were able to break over the screen with considerable forceand damage or breach the earth dam behind. The investigationsmade showed that on the British Guiana coast vegetation is usefulin holding and building up sheltered areas of foreshore subjectto overflow during high tide. Courida (Aricennia nitida), blackmangrove (Rhizophora mangle), and white mangrove (Lagun-cularia racemosa) being especially useful in muddy places abovethe breaking point of the wave in building up and consolidatingthe mud. The roots of these trees slow down the currents andcause materials to be deposited which would otherwise be movedaway. Although Courida and mangrove trees ha
Size: 1745px × 1431px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade186, bookpublisherlondon, bookyear1861
