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首页> 外文期刊>The Forestry Chronicle >A tool for converting forest ecosystem classifications for permanent or temporary growth plots into the new provincial Ecological Land Classification (ELC) system in the boreal regions of Ontario
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A tool for converting forest ecosystem classifications for permanent or temporary growth plots into the new provincial Ecological Land Classification (ELC) system in the boreal regions of Ontario

机译：一种将永久性或临时性生长地带的森林生态系统分类转换为安大略省北方地区新的省级生态土地分类（ELC）系统的工具

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Forest Ecosystem Classification (FEC) systems were originally developed and used in the Province of Ontario at regional levels with the objective of classifying forest ecosystems to support silvicultural decision-making in an operational setting. A new provincial Ecological Land Classification (ELC) system has been developed, which integrates the regional systems into a single consistent framework. To make continued use of data and knowledge gained from long-term forest monitoring plots classified under the old FEC system, such as Permanent Growth Plots (PGPs), Permanent Sample Plots (PSPs) and Temporary Sample Plots (TSPs), an ecosite conversion from the existing FEC data to the new ELC system was deemed necessary. We developed a conversion matrix to convert FEC ecosite classifications from the northeast and northwest to the provincial ELC system for the boreal forest region of Ontario. The conversion system is intended to apply at the scale of individual plots, with a special focus on PGP, PSP and TSP networks, and has been limited to forested ecosystems, as FEC systems were originally developed for the forest land base only. The conversion is primarily driven by canopy cover composition derived from plot-based individual tree data, with additional information required on substrate characteristics (e.g., substrate type, depth of mineral material, effective soil texture and moisture regime). It is possible to derive some of the soil variables from the broadly defined soil-type (S-type) categories of the original FEC systems; however, this approach requires making some assumptions that could reduce the accuracy of conversion. We anticipate that this conversion matrix will bridge the gap until active plot networks are re-typed in the field into the ELC system, Provide a link to historical TSPs, and would be of general interest to a variety of new ELC users.
机译：森林生态系统分类（FEC）系统最初是在安大略省区域级开发和使用的，目的是对森林生态系统进行分类，以支持运营环境中的造林决策。已经开发了一个新的省级生态土地分类（ELC）系统，该系统将区域系统整合到一个统一的框架中。为了继续利用从旧的FEC系统下分类的长期森林监测区获得的数据和知识，例如永久性生长区（PGP），永久性样品区（PSP）和临时性样品区（TSP），这是从新的ELC系统的现有FEC数据被认为是必要的。我们开发了一个转换矩阵，将东北和西北的FEC生态站点分类转换为安大略省北方森林地区的省级ELC系统。转换系统旨在在单个样地的规模上应用，特别关注PGP，PSP和TSP网络，并且仅限于森林生态系统，因为FEC系统最初仅是为林地开发的。转换主要由冠层覆盖成分驱动，该覆盖层成分来自基于图的单个树木数据，并需要有关底物特性的其他信息（例如，底物类型，矿物材料的深度，有效的土壤质地和水分状况）。可以从原始FEC系统的广泛定义的土壤类型（S型）类别中得出一些土壤变量。但是，此方法需要做出一些可能降低转换精度的假设。我们预计，这种转换矩阵将弥合差距，直到在现场将活动地块网络重新输入到ELC系统中为止，提供到历史TSP的链接，并且将成为各种新ELC用户的普遍兴趣。

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