TAILIEUCHUNG - Báo cáo lâm nghiệp: "Forest vegetation management (FVM) is key to successful forest stand establishment around the world"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Forest vegetation management (FVM) is key to successful forest stand establishment around the world. | Ann. For. Sci. 60 2003 558 558 INRA EDP Sciences 2003 Foreword Forest vegetation management FVM is key to successful forest stand establishment around the world. Levels of investment in FVM are determined by the silvicultural intensity desired. FVM also is vital in the mixed production systems of agro-forestry. FVM includes a wide variety of practices that involve a number of questions about biologic and economic justifications appropriate methods and timing of application growth and yield implications concerns about environmental consequences and public acceptability. The 4th International Conference on Forest Vegetation Management IFVMC held in Nancy France from 17 to 21 June 2002 dealt with many of these questions. The conference emphasized the ecological consequences of FVM. The robust response of forest vegetation to FVM practices illustrates the tremendous capacity of native flora to adapt to new environmental conditions but also reflects the nature of past events during past centuries. Influences of FVM practices on vegetation diversity were of particular interest. Forest vegetation manipulation can be used as a tool of ecological management to restore wild habitat or river quality or to improve the productive capacity of a site. FVM often modifies the habitat of wild animals in favor of one or another species according to structure and composition of the plant communities created. Spatial and time scales also need to be taken into account when analyzing the consequences of perturbations to forest plant communities. Conference speakers emphasized the need for diversification and optimization of FVM practices. Public opposition to forest use of herbicides although not fully justified according to the assessment of risks by scientists as underlined by several works is now considered as reality and serves as an impetus to explore new methods of FVM. Work to integrate current data into models that will facilitate optimizing the relative efficiency of herbicides

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