适应全球气候变化的森林固碳计量方法评述

在全球气候变化背景下,研究森林固碳计量方法理论具有重要意义。笔者基于文献计量学方法评述了该研究领域近年来的最新进展,比较了各森林固碳计量方法的优缺点。森林固碳计量方法主要包括基于样地清查或遥感估测和基于模型模拟的方法。选择合适的方法需要考虑数据信息、研究侧重点及各方法间的兼容性等。目前,森林碳计量的核心目标是构建各树种的异速生长方程,难点主要是尺度转换。样地调查、遥感估测和模型模拟等方法的综合运用是解决尺度转换问题和研究森林生态系统碳循环的主要趋势。特别要加强全球气候变化背景下人工林的适应性管理,科学评估人工林的固碳潜力,提升人工林固碳潜力评估方法的必要性。同时,也需要加强森林生态系统C-N-H₂O耦合循环及其生物调控机制方面的研究,降低森林生态系统碳收支评估的不确定性。

Review on forest carbon sequestration counting methodology under global climate change

It is important to study the theory of forest carbon sequestration counting methodology under the background of global climate change. This article reviewed the latest progress in recent years about this field based on literature metrology, and compared the advantages and disadvantages of each method. Forest carbon sequestration counting methodology include based on sample inventory method, remote sensing estimation method and model simulation. To choose the appropriate method need to consider the data information, the emphasis of the research as well as the compatibility among the various methods, and so on.At present, the core goal of forest carbon accounting is to built allometric growth equation of different tree species, scaling is a main difficulty. In the future, the main trend to solve scaling problem and carbon cycle research is the integrated use of sample plot survey, remote sensing estimation and model simulation too. Especially to strengthen artificial forest adaptive management under the background of global climate change, scientific assess artificial forest carbon sequestration potential, improve the necessity of artificial forest carbon sequestration potential evaluation method. At the same time, the forest ecosystem C-N-H₂O coupling cycle regulation mechanism and its biological research also need to be strengthened, and the uncertainty of forest ecosystem carbon balance evaluation should be reduced.