The historical development of uneven-aged silviculture in North America
The historical development of uneven-aged silviculture in North America
复制标题
北美异龄造林的历史发展
DOI：
10.1093/forestry/75.4.339
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发表时间：
2002
期刊：
影响因子：
2.8
通讯作者：
K. O’Hara
中科院分区：
文献类型：
--
作者：
K. O’Hara
在北美，不均匀树龄的造林经历了流行和排斥的周期。这些高度多样化的做法的理由包括试图创造“自然”，收获处理和经济的效率，以及效仿欧洲榜样的愿望。也有人试图找到林分和森林之间的关系，这些关系提供了“平衡”，作为某些类型的年龄不均匀管理做法的理由。在太平洋西北地区的老树林的实践提供了这些实践被误用的一个例子。这一不成功的努力所造成的影响显然影响了其他区域对年龄不均匀的森林管理的接受。然而，在其他地区，如干旱地区的西部针叶树、北部硬木和南部松树，不均匀树龄管理更为成功。未来成功的非平均年龄管理需要认识到单个生态系统的扰动和动态变化，并利用这些来指导管理。
Summary Uneven-aged silviculture in North America has cycled through periods of popularity and rejection. Justifications for these highly varied practices have included attempts to create ‘naturalness’, efficiencies in harvest treatments and economics, and a desire to follow a European example. There have also been attempts to find stand- and forest-level relationships that provided ‘balance’ as a justification for certain types of uneven-aged management practices. Practices in old-growth stands in the Pacific Northwest provide an example of these practices misapplied. The repercussions of this unsuccessful effort apparently affected the acceptance of uneven-aged forest management in other regions. However, uneven-aged management in other regions, such as drier-site western conifers, northern hardwoods, and southern pines, was more successful. Successful uneven-aged management in the future will require practices that recognize the disturbance and stand dynamics of individual ecosystems and use these to guide management.