McElroy deAlbuquerque 1990 Sustainable SmallScale Agriculture Caribbean Islands MALAS
...heavy runoff and sediment discharge has even damaged seagrass beds and coral
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reefs, affecting fishing and recreational uses (McElroy et al., 1990). In addition, large-scale monocropping for export tends to promote erosion because It of heavy nutrient loss through wholesale removal of biomass at harvesting. also requires intensive fertilizer and pesticide use to substitute for the lost natural fertility and pest control exhibited by balanced systems. Such applications reduce biological diversity and organic defenses against major infestations (Imamura, 1988).
In the second case, the seawater buffering system -- reefs, seagrass beds, littoral vegetation, mangroves -- stabilizes shorelines and protects agricultural (coconuts) and fishing activities from tropical storms and tidal waves. This protection is extremely important in the small OECS islands because they lie in a hurricane corridor. Reefs are especially valuable because they build islands, deposit sand, produce food and habitats, and promote tourism. They form the foremost buffer against sea swells. Seagrass beds, mangroves, and beach vegetation hold shorelines in place and absorb salt spray.
In some islands, these relationships have been seriously altered by development thrusts, and natural processes have broken down. Indiscriminate bottom dredging and reef blasting for sand and for constructing harbors and tanker ports...