Intrepid 发表于 2025-3-25 07:18:11
https://doi.org/10.1007/978-3-540-46391-7Ernte; Ernteplannung; Forstarbeiten; Regenwälder, tropisch; Tropical forests; Wälder; forest; forest operatenhance 发表于 2025-3-25 10:43:43
978-3-642-07976-4Springer-Verlag Berlin Heidelberg 2007Blood-Vessels 发表于 2025-3-25 15:16:32
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John SessionsMost complete reference book on harvesting operations in the tropics.Includes supplementary material:较早 发表于 2025-3-26 04:20:28
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1614-9785to fell trees and remove them from the forest to the roadside for loading and transport from the forest. Harvesting and extraction operations are the activities that generally cause the most significant impacts on forest managed for timber production. Sustainable forest mana- ment is concerned with胆大 发表于 2025-3-26 14:26:21
s development. The chapter suggests that a clearly designed seed policy should be developed to create enabling environments for public–private partnership and provide coherence for a level playing field for the development of a dynamic, pluralistic and sustainable seed system in Nepal.immunity 发表于 2025-3-26 20:16:50
emonstrates the existence of technological progress. Further, analysis of ‘factor return’ in relation to different factors can help us to distinguish different agricultural growth paths, such as technology-based or factor intensification-based growth paths.