which plantation are at risk today
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Plantations also offer important environmental benefits. Plantations, strategically placed in the landscape, are recognised for their importance for sustainable production and improved soil, water quality and salinity mitigation, carbon and biodiversity benefits
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1. Plantations of one or two species offer an enormous food source and ideal habitat to any pest and pathogen species adapted to them.
2. Uniformity of species and closeness of trees allow rapid colonization and spread of infection.
Trees grow on one site for many years. This may allow a pest or disease to build up over time with little opportunity to destroy infection. The forest plantation cannot be changed quickly in face of a devastating outbreak.
5. Many plantations are of introduced exotic species and are without the insect pests and pathogens that occur in their native habitat. This has undoubtedly contributed to the great success of eucalypts across the tropics freed from numerous leaf-eating insects that occur in the Australian environment. Conversely, many natural agencies controlling pests and diseases are also missing and destruction can be swift and uncontrolled. Zobel et al. (1987) concluded that exotic stands are not more at risk, other than clonal plantations, and that problems arise mainly when species are ill suited to a site. Further, introducing biological control has been successful in many instances.
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2. Uniformity of species and closeness of trees allow rapid colonization and spread of infection.
Trees grow on one site for many years. This may allow a pest or disease to build up over time with little opportunity to destroy infection. The forest plantation cannot be changed quickly in face of a devastating outbreak.
5. Many plantations are of introduced exotic species and are without the insect pests and pathogens that occur in their native habitat. This has undoubtedly contributed to the great success of eucalypts across the tropics freed from numerous leaf-eating insects that occur in the Australian environment. Conversely, many natural agencies controlling pests and diseases are also missing and destruction can be swift and uncontrolled. Zobel et al. (1987) concluded that exotic stands are not more at risk, other than clonal plantations, and that problems arise mainly when species are ill suited to a site. Further, introducing biological control has been successful in many instances.
HOPEFULLY IT HELPED YOU OUT
PLEASE MARK ME THE BRAINLIEST!!!!
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