Lindroth Anders, Tranvik Lars
Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden.
Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden.
Carbon Balance Manag. 2021 Apr 10;16(1):10. doi: 10.1186/s13021-021-00173-8.
The Paris agreement identifies the importance of the conservation, or better, increase of the land carbon sink. In this respect, the mitigation policies of many forest rich countries rely heavily on products from forests as well as on the land sink. Here we demonstrate that Sweden's land sink, which is critical in order to achieve zero net emissions by 2045 and negative emissions thereafter, is reduced to less than half when accounting for emissions from wetlands, lakes and running waters. This should have implications for the development of Sweden's mitigation policy. National as well as the emerging global inventory of sources and sinks need to consider the entire territory to allow accurate guidance of future mitigation of climate change.
《巴黎协定》明确了保护土地碳汇(或者更好的情况是增加土地碳汇)的重要性。在这方面,许多森林资源丰富的国家的减排政策严重依赖森林产品以及土地碳汇。在此,我们证明,为了在2045年实现净零排放并在此后实现负排放,瑞典至关重要的土地碳汇在计入湿地、湖泊和流水的排放后减少至不到原来的一半。这应该会对瑞典减排政策的制定产生影响。国家以及新出现的全球源汇清单需要考虑整个领土,以便为未来的气候变化减排提供准确指导。