| 摘要: | 由於溫室氣體排放問題漸受重視，本研究透過量測2014 年基隆市內19 個空氣品質淨化區內的林木樹高、胸徑，再利用其胸高斷面積與材積求出林木碳削減量及二氧化碳吸存量，並與2013 年調查數據比較一年間生長差異。2014 年調查結果樹木有141 種2821 棵，碳削減量達到75.429 ton。2014 年碳削減量較2013 年增加14.82 ton，其中10.94 ton 來自新增的空氣品質淨化區，3.88 公噸來自林木生長，兩年度之樹木碳削減增加率為6.41％。調查結果有助於奠定都市林對空氣品質的重要性，並顯示加強空氣品質淨化區內樹木的管理與撫育將提升碳削減效益。
In view of increasing attention to the issue of greenhouse gas emissions, this study measured tree height and diameter at breast height in 19 air quality purification areas (AQPAs) in Keelung, Taiwan, during 2014. Carbon reduction and carbon dioxide absorption were then determined from cross-sectional area at breast height and forest volume, showing significant differences in comparison with survey data from 2013. In 2014, there were 2821 trees in 141 species with carbon reduction at 75.429 tons. Carbon reduction in 2014 increased by 14.82 tons, of which 10.94 tons came from recently added AQPAs and 3.88 tons from tree growth, a increase of 6.41% in tree carbon reduction yearly. Results of the study help to establish the importance of urban forests to air quality and show that strengthening tree management in air quality purification areas tends to enhance carbon reduction benefits. |
