Adaptive forest management system for SFM-oriented timber harvest strategies in Japanese plantations

以可持续的方式处理森林资源管理与环境、社会价值和目标相结合的复杂问题，需要采取比在林分一级管理森林生态系统状况的传统方法更全面和更具空间性的办法。通过从景观角度出发，结合改进的分析工具来支持基于共识的管理决策，可以确定森林管理做法的基准，以满足营林和采伐活动造成的适当规模或程度的潜在影响。本研究的目的是探讨基于地理信息系统的空间决策支持系统的开发，该系统结合图像处理设施(栅格式地理信息系统，IDRISI 32)和景观透视关注的收获调度/分配模型(收获)。地理信息系统现在可以将空间部分纳入收获计划/分配规划和模拟模型。在某些情况下，特定地理信息系统的建模功能可直接用于辅助有关木材采伐的决策；在其他情况下，外部模型链接到地理信息系统数据库。采伐的目的是利用初始景观条件和潜在的木材采伐活动产生的空间属性来预测景观格局的变化。通过预测这些变化的实例，结合技术机会、约束和权衡，展示了三叶县和滋贺县两个案例研究森林的应用潜力。结果(由此产生的森林开阔模式和林龄分布)也提供了视觉反馈的机会。这一办法将使资源管理人员能够根据适应多种经济、环境和社会目标的替代管理战略，设计和展示森林资源的长期养护前景。

Dealing with the sophisticated issues of integrating forest resources management with environmental, and social values and objectives in a sustainable manner requires a more holistic and spatial approaches than has been traditionally applied to managing forest ecosystem condition at a stand level. By taking a landscape perspective, combined with improved analytical tools to support the consensus-based management decision-making, benchmarking forest management practices to meet the adequate scale or level of potential impacts caused by silvicultural and harvesting activities might be realized. The object of this research was to discuss the development of a GIS-based spatial decision support system combined with image processing facility (raster type GIS system, IDRISI 32) and a harvest schedule/allocation model for landscape perspective concerns (HARVEST). GIS has now made it possible to incorporate spatial components into harvest schedule/allocation planning and simulation models. In some cases, the modeling capabilities of a particular GIS may be used directly to aid decisions about timber harvesting ; in other cases, an external model is linked to a GIS database. HARVEST was designed to predict changes in landscape patterns with spatial attributes resulting from the initial landscape conditions and potential timber harvest activities. Application potential at two case study forests in Mie and Shiga Prefecture was showed through examples of predicting these changes combined with technical opportunities, constrains, and trade-off. The outcome (the resulting patterns of forest openings and stand age distributions) also provided opportunities of visual feedback. This approach would enable resource managers to design and demonstrate the long-term conservation outlook of forest resources under alternative management strategies geared to multiple economic, environmental, and social objectives.