Kiomars Sefidi, Carolyn A Copenheaver, Dominik Thom, Bernhard Felbermeier
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引用次数: 0
摘要
摘要结构复杂性指数(SCI)已成为森林管理者监测各种森林类型生态系统服务和保护价值的重要指标。在这项研究中,我们开发了伊朗北部未管理的东方Fagus (Fagus orientalis Lipsky)混交林的SCI,其中包含了成熟林和原生林特有的结构信息。我们的研究结果表明,我们能够为这片森林开发一个SCI,这将有助于管理者在一个大型林下和小型林下同等重要的森林中做出保护决策。5种小乔木(槭)的密度与SCI呈显著正相关。,红叶槭。、秋海棠春黄宏德,栎木。李(Prunus avium L.),密度大([50 cm <胸围直径{DBH} <75厘米])和非常大(胸径>75厘米)的上层树木。SCI仍然是森林保护和决策的高度灵活的工具,可以帮助森林管理决策应对气候变化和转移干扰制度。研究意义:森林管理者已经开始使用结构复杂性指数(SCI)来评估保护管理目标的成功实现。在许多成熟的混交林中,大乔木、小乔木和林下乔木是重要的结构成分。在这项研究中,我们证明了减少采样树木的最小直径和仔细选择用于计算SCI的变量是做出保护决策的有价值的指标。SCI作为森林决策工具的优势在于,森林管理者能够调整用于计算SCI的输入,以反映特定的经营目标或监测目标。
Developing a Structural Complexity Index for Oriental Beech Forests in Northern Iran
Abstract The structural complexity index (SCI) has become an important metric for forest managers to monitor ecosystem services and conservation value in a wide variety of forest types. In this study, we developed an SCI for an unmanaged mixed Fagus orientalis Lipsky forest in northern Iran, which incorporated structural information specific to mature and old-growth forests. Our results showed that we were able to develop an SCI for this forest that would assist managers to make conservation decisions in a forest where large overstory trees and small understory trees are equally important. The SCI was significantly positively correlated with the density of five minor tree species (Acer velutinum Boiss., Acer cappadocicum Gled., Tilia begoniifolia Chun & H.D. Wong, Quercus castaneifolia C.A. Mey., and Prunus avium L.) and the density of large ([50 cm < diameter at breast height {DBH} < 75 cm]) and very large (DBH > 75 cm) overstory trees. The SCI remains a highly flexible tool for forest conservation and decision making and may assist with decisions about forest management in response to climate change and shifting disturbance regimes. Study Implications: Forest managers have begun to use the structural complexity index (SCI) to assess the successful achievement of conservation management objectives. In many mature, mixed-species forests, large trees, minor species, and understory tree species are important structural components. In this study, we demonstrate that reduction of the minimum diameter used for sampling trees and careful selection of the variables used to calculate SCI results in a valuable metric for making conservation decisions. The advantage of SCI as a forest decision tool is that forest managers are able to adjust the inputs used to calculate SCI to reflect specific management objectives or monitoring goals.
期刊介绍:
Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.