桉树人工林碳储量的研究方法及影响因素

Methods and Impact Factors of Carbon Storage of Eucalypt Plantations

桉树人工林作为我国南方的主要用材林,其生态系统碳储量是陆地生态系统碳库的重要组成部分。本文综述了当前计量桉树人工林生态系统碳储量所采用的直接实测法、模型模拟法、微气象学法和遥感估算法的测定步骤、基本公式、优势缺点等关键内容,从桉树人工林的经营周期、林龄、种植密度、土壤微生物等方面分析了其对生物量形成的影响特征,较全面总结了目前用于计量桉树人工林碳储量的方法及其关键影响因素,为优化现有计量模型参数或开发新的计量方法学以精准计量桉树人工林生态系统碳储量提供参考资料。

Eucalypt plantation is the main timber forest in souther China,and its ecosystem carbon storage is an important part of the terrestrial ecosystem carbon pool.In this paper,we reviewed the measurement steps,basic formulas,advantages and disadvantages of direct measurement methods,model simulation methods,micrometeorology methods and remote sensing estimation methods which were used to measure the carbon storage of eucalypt plantation ecosystems,and we also analyzed the characteristics influencing on biomass formation from the aspects of management cycle,age,planting density and soil microorganisms of eucalypt plantation.This comprehensively summarizes the methods used to measure carbon stocks in eucalypt plantations and their key influencing factors,which provides reference materials for optimizing the parameters of existing metrological models or developing new metrological methods to accurately measure carbon stocks of eucalypt plantation ecosystems.