清洁发展机制下造林或再造林项目的额外性问题探讨

清洁发展机制是国际社会应对气候变化所采取的一种重要的合作机制。其额外性问题是缔约方会议谈判中备受关注和最具争议的焦点之一，额外性准则和评价方法是CDM方法学的核心问题之一。该文在文献调研的基础上，对CDM林业项目特别是造林或再造林项目的额外性的基本含义、类型、评价方法及其合理性和可操作性进行了分析，以期对我国准备和实施CDM造林或再造林项目有所裨益。

Issues on Additionalities of CDM Afforestation and Reforestation Project Activities

International communities have made a tremendous effort to combat global climate change. The Clean Development Mechanism (CDM) is one of important mechanisms to assist in achieving the mitigation target assigned in the Kyoto Protocol. However, the additionality of the CDM afforestation and reforestation project activities has been a debated issue in the Conference of the Parties. The method for assessing the additionality is the core for the eligibility. The paper discusses the types and their essential implications of the additionalities of the CDM afforestation and reforestation project activities, and the rationality and feasibility of the methods for assessing additionalities, hoping to the contributation to preparation and implementation of CDM afforestation or reforestation project activities in China.