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Silvicultural guidelines دانلود رایگان کتاب لاتین «دستورالعمل های جنگلشناسی» The Department of Environment, Climate Change and Water and State of NSW are pleased to allow this material to be reproduced for educational or non-commercial purposes in whole or in part, provided the meaning is unchanged and its source, publisher and authorship are acknowledged. Specific permission is required for the reproduction of photographs and images. Silviculture Silviculture is the art and science of forest management. It encompasses the management of forests for economic benefit (such as sawlogs, veneer logs, honey), environmental benefit (such as flora, fauna, water) and social benefit (such as visual landscape, recreation, heritage). Often these benefits are not compatible. For example, the highest economic return may be gained by clearfelling a forest, but this can have detrimental effects on environmental and social values. Silviculture is a science because there is much known about the processes that occur naturally in native forests, and the impact of these processes on the activities of people. However, forests are extremely complex natural systems. Determining the best management regime within the context of this complexity and the competing benefits that can be derived from the forest is the art of silviculture. Why not one silvicultural regime There is great diversity in the composition, structure, productive condition and environmental values of the private native forests of New South Wales. This is due to the range of natural environments in NSW, and the response of the forests to past use (including grazing, logging and other clearing) and fire. Because of this diversity there is no single silvicultural prescription that can be applied uniformly to all forests. Regulation of private native forestry in NSW From 1 August 2007, the harvesting of native forest on private land in NSW has been regulated by the requirements of the Native Vegetation Act 2003 (NV Act) and the Native Vegetation Regulation 2005, incorporating the Private Native Forestry Code of Practice (PNF Code). The PNF Code sets standards for forest operations in private native forests. It is based on the principles of ecologically sustainable forest management (ESFM) which requires the maintenance of the full suite of forest values. These values include both biodiversity and timber production. As a component of this, the PNF Code requires the long term maintenance of a forest structure. The Department of Environment, Climate Change and Water (DECCW) is responsible for administering the logging of native forests. A private native forest manager will, in the first instance, need to contact DECCW to obtain an approved PNF property vegetation plan (PVP). Note: These guidelines should be used in conjunction with the PNF Code. It is critical that all forest management planning is undertaken in consideration of the relevant PNF Code. دانلود کتاب با فرمت PDF در قالب فرمت فشردهRAR با حجم 0.8 مگابایت: رمز فایل فشرده: www.noandishaan.com