In what was probably the best orchestrated and publicly cohesive reforestation event in world history, the people of South Korea came together in the 1970s and 1980s and reforested their country after it had been denuded during thirty-fi ve years of Japanese colonization and the subsequent Korean War. Reforestation was needed at the time primarily for developing a domestic timber supply to support its largely rural and agrarian economy. But South Korea has changed. It is now one of the world's most densely populated countries with a rapidly increasing industrial economy, and more than half its population is urban. It is no longer clear that providing a domestic timber supply is either desirable or feasible. In this article, we argue that providing recreational opportunities, especially for urbanites, and ecological restoration for biodiversity conservation are now the best strategic uses of Korea's forests. SUMMARYLe dilemme forestier de la Corée du Sud K. TAK, Y. CHUN et P.M. WOOD La population de la Corée du Sud s'est réunie dans les années 70 et les années 80 dans ce qui a été sans doute l'évènement de reboisement le mieux orchestré et le plus cohésif publiquement dans l'histoire mondiale, et a reboisé le pays après qu'il ait été dénudé durant les trente cinq ans de colonisation japonaise et la guerre de Corée qui s'ensuivit. Le reboisement était nécessaire à l'époque, principalement pour développer une production de bois domestique pour supporter l'économie du pays,alors largement rurale et agraire. Mais la Corée du Sud a changé. Elle est maintenant l'un des pays aux plus fortes densités de population et possède une économie industrielle à croissance rapide. Plus de la moitié de sa population est urbaine. Il n'est plus certain maintenant que l'obtention d'une production de bois domestique soit faisable, voire désirable. Dans cet article, nous avançons que la meilleure utilisation stratégique actuelle des forêts de Corée est d'offrir des opportunités de récréation, particulièrement pour les populations urbaines, et la restoration écologique pour la conservation de la biodiversité. El dilema forestal de Corea del SurK. TAK, Y. CHUN, y P.M. WOOD En lo que ha sido probablemente el caso de reforestación basada en la organización pública conjunta más notable de la historia mundial, el pueblo de Corea del Sur se unió en los años 70 y 80 para reforestar su país, después de su deforestación durante los treinta y cinco años de colonización japonesa y la guerra de Corea posterior. En esta época se necesitaba un proceso de reforestación sobre todo para el desarrollo de reservas nacionales de madera adecuadas para su economía en gran parte rural y agraria. Pero Corea del Sur ha experimentado cambios profundos; ahora es uno de los países más densamente poblados del mundo, con una economía industrial en rápido desarrollo, y la mayor parte de la población vive en zonas urbanas. Ya no está tan claro que la existencia de reservas nacionales de madera sea ni deseable ni factible. En este artículo, se postula que en la actualida...
Many researchers set up an experiment, make measurements, do an analysis of variance, calculate the mean response for each treatment, and then try to decide if the" treatment means are significantly different and why. Much too frequently, Duncan's multiple range test is used to test differences among means. It is only one of a number of techniques that can be used to examine treatment means. Some researchers are unaware of the different techniques and that the interpretation of the results of an experiment is strongly influenced by the technique used i.e. using two different techniques might produce two different interpretations of the results. Selection of the appropriate technique to use for a particular experiment depends upon the nature of the treatments and the objectives of the research. This paper discusses four techniques (ranking treatment means, multiple comparison procedures, fitting response models, and using contrasts to make planned comparisons) that can be used to examine treatment means and presents examples of the use of each one for plant tissue culture research.
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