A Study on the Estimative Approach of Forest Carbon Sequestration for National Forest Land in Taiwan

• Main Authors: Juimin Wang, 王瑞閔
• Other Authors: 邱祈榮
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/22100488087939792846

碩士 === 臺灣大學 === 森林環境暨資源學研究所 === 95 === Global climate change has become an important subject since the end of the 20th century. In attempt to resolve the issues, nations worldwide accepted “The United Nations Framework Convention on Climate Chang” in 1992 and also the “Kyoto Protocol” in 2005. Both the UNFCCC and KP agreed that forest carbon sequestration will reduce climate change, and thus participating nations are required to estimate their greenhouse gases and provide a national greenhouse gas inventory report. But forest inventory data in Taiwan does not accord to the IPCC guidelines for National Greenhouse Gas Inventories; hence, these data cannot be used to estimate the forest carbon sequestration using the IPCC guidelines. After the KP was accepted, many scholars have tried to approximate the forest carbon sequestration in Taiwan. The result is between 4.72 and 9.62. million tons per year. There are still many experts studying carbon sequestrated by other trees. This study uses the forest inventory data book, date in permanent sample plot, forest map and eco-zone GIS layers to build an estimative system of forest carbon sequestration for national forest land, according to the guidelines for national greenhouse gas inventory report. This system will then estimate Taiwan’s national forest carbon sequestration of different forest types in 2006. There are 71 forest types divided from the original forest inventory data book and eight eco-zones are recognized following the IPCC Ruler. Forest stocks in uni-area, growth rate and death rate are estimated by using the permanent plot database. The national forest stock in Taiwan in 2006 is 617,699 thousand cubic meter. The forest carbon stock is 137.27 million tons and the carbon sequestration is 4.70 million tons per year. There are still some problems in the permanent sample plot database, so using the database for carbon sequestration approximations often result in overestimation. Furthermore, local factors for the individual species have not yet been established, so we can only rely on the factors suggested by the 2006 IPCC Guidelines. The issues mentioned above are still to be solved.