浙江省嘉兴市高速公路造林碳汇计量

在全球气候变化背景下,森林碳汇能力成为国际减缓气候变暖的重要措施之一。随着碳汇林业的开展,碳汇计量日益受到国际社会重视。依据《造林项目碳汇计量与监测指南》,对浙江省嘉兴市高速公路互通枢纽区进行碳汇造林及碳汇计量,计量期为2011-2031年。结果表明:该项目在2011年表现为碳源,累计项目碳汇量为-81.59 t(二氧化碳当量),自2012年开始有碳汇,项目净碳汇累计量为1 747.84 t(二氧化碳当量),2017年项目累计量达到11 396.84 t(二氧化碳当量),到2031年累计量达到45 886.07 t(二氧化碳当量),年均净碳汇量为2 294.30 t(二氧化碳当量),释放O2为2 031.00 t,固碳效果明显,生态效益显著。

Measurement of carbon sequestration of highway afforestation in Jiaxing，Zhejiang，China

In the context of global climate change, forest carbon sequestration has become one of important measures of international mitigation of climate warming. With the development of carbon sequestration afforestation，forest carbon sequestration measurement has drawn more and more international attention. According to the Guidelines for Carbon Accounting and Monitoring in the Afforestation Projects，carbon sequestration afforestation and carbon sequestration measures were carried out in the highway interchange hub area in Jiaxing City，Zhejiang Province，and the accounting period would last from 2011 to 2031. The result indicated that the project was a carbon source in 2011，the cumulative amount of net carbon sequestration being -81.59 t（CO₂ equivalent，i.e.，CO₂e）. It became a carbon sequestration from 2012 and the cumulative amount of net carbon sequestration was 1 747.84 t（CO₂e）. The cumulative amount of net carbon sequestration would reach 11 396.84 t（CO₂e） in 2017. By 2031，the cumulative amount of net carbon sequestration would reach 45 886.07 t（CO₂e），the average annual net carbon sequestration would be 2 294.30 t（CO₂e），and the oxygen emission would be 2 031.00 t. It would have huge carbon sequestration potentials and significant ecological benefits. ［Ch，4 fig. 2 tab. 17 ref.］