森林碳汇与森林恢复评价刍议

Discussion on Forest Carbon Sink and Forest Rehabilitation Evaluation

毁林和森林退化成为继化石燃料燃烧之后第二大温室气体排放源,森林恢复是减缓(减少)毁林和森林退化的重要途径,许多国家独自或联合起来,持续的进行森林恢复活动。联合国与农业组织(FAO)最新估计,2001-2015年,全球因毁林导致的温室气体排放已经从3.9 GtCO_(2-eq)/a下降到2.9 GtCO_(2-eq)/a。这主要归因于中国、巴西、智利、菲律宾、韩国、越南、土耳其、乌拉圭和哥斯达黎加等一些国家在减少毁林和增加森林面积方面所做的贡献。近期,我国林业局对外公布的《省级林业应对气候变化2017-2018年工作计划》指出,加强森林生态系统保护和建设、增加森林碳汇、控制林业温室气体排放及提高林业适应能力等已列入国家战略和规划。可以预见,森林恢复在未来应对气候变化工作中将发挥更大的作用。基于此,对森林碳汇和森林恢复评价进行刍议,为我国未来的森林恢复工作提供参考。

Deforestation and forest degradation are the second largest source of greenhouse gas emissions after the burning of fossil fuels,and forest rehabilitation is an important means of mitigating(reducing)deforestation and forest degradation,with many countries acting individually or jointly to sustain forest rehabilitation activities.Global greenhouse gas emissions from deforestation have dropped from 3.9 GtCO2-eq/a to 2.9 GtCO2-eq/a between 2001 and 2015,according to recent estimates by the United Nations and the Agriculture Organization of the United Nations(FAO).This is largely attributable to the contribution of a number of countries,including China,Brazil,Chile,the Philippines,Korea,Viet Nam,Turkey,Uruguay and Costa Rica,in reducing deforestation and increasing forest area.Recently,the Provincial Forestry Work Plan for Combating Climate Change 2017-2018 published by China’s Forestry Administration states that strengthening the protection and construction of forest ecosystems,increasing forest carbon sinks,controlling forest greenhouse gas emissions and improving forest adaptive capacity have been included in national strategies and plans.Forest rehabilitation is expected to play a greater role in future efforts to combat climate change.Based on this,the paper makes a brief discussion on forest carbon sink and forest rehabilitation evaluation,and provides a reference for future forest rehabilitation work in China.