Large carbon sink potential of secondary forests in the Brazilian Amazon to mitigate climate change.
Large carbon sink potential of secondary forests in the Brazilian Amazon to mitigate climate change.
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DOI：
10.1038/s41467-021-22050-1
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发表时间：
2021-03-19
影响因子：
16.6
通讯作者：
Aragão LEOC
中科院分区：
文献类型：
--
作者：
Heinrich VHA;Dalagnol R;Cassol HLG;Rosan TM;de Almeida CT;Silva Junior CHL;Campanharo WA;House JI;Sitch S;Hales TC;Adami M;Anderson LO;Aragão LEOC
热带次生林吸收碳的速度比老森林快20倍。这一比率没有捕捉到由于环境和干扰驱动因素造成的空间再生模式。在这里，我们使用卫星数据量化了这些驱动因素对巴西亚马逊地区再生速度和空间模式的影响。西部幼龄次生林(20年生)的固碳率(3.0 ± 1.0 mg C ha−1 yr−1)比东部幼龄次生林(1.3 ± 0.3 mg C ha−1 yr−1)高约60%。干扰会使再生率降低8-55%。2017年次生林的碳储量为294 Tg C，通过避免火灾和反复砍伐森林，可能会高出8%。维持2017年的次生林面积有可能在2030年之前积累约19.0 Tg C yr−1，对巴西2030年的净减排目标贡献约5.5%。因此，实施法律机制来保护和扩大次生林，同时支持老树保护，是实现其作为一种基于自然的气候解决方案的潜力的关键。这项研究使用区域和全球遥感数据来评估巴西亚马逊生物群中次生林的再生情况。作者发现了气候、森林火灾和森林砍伐行动导致的再生长速度的差异，并进一步量化了它们的碳捕获潜力。
Tropical secondary forests sequester carbon up to 20 times faster than old-growth forests. This rate does not capture spatial regrowth patterns due to environmental and disturbance drivers. Here we quantify the influence of such drivers on the rate and spatial patterns of regrowth in the Brazilian Amazon using satellite data. Carbon sequestration rates of young secondary forests (<20 years) in the west are ~60% higher (3.0 ± 1.0 Mg C ha−1 yr−1) compared to those in the east (1.3 ± 0.3 Mg C ha−1 yr−1). Disturbances reduce regrowth rates by 8–55%. The 2017 secondary forest carbon stock, of 294 Tg C, could be 8% higher by avoiding fires and repeated deforestation. Maintaining the 2017 secondary forest area has the potential to accumulate ~19.0 Tg C yr−1 until 2030, contributing ~5.5% to Brazil’s 2030 net emissions reduction target. Implementing legal mechanisms to protect and expand secondary forests whilst supporting old-growth conservation is, therefore, key to realising their potential as a nature-based climate solution. This study uses regional and global remote sensing data to assess the regrowth of secondary forests in the Brazilian Amazon biome. The authors find differences of regrowth rates due to climate, forest fires and deforestation actions and further quantify their carbon capture potential.
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影响因子：
9.8
作者：
Abatzoglou JT;Dobrowski SZ;Parks SA;Hegewisch KC
通讯作者：
Hegewisch KC
影响因子：
64.8
作者：
Cook-Patton, Susan C.;Leavitt, Sara M.;Griscom, Bronson W.
通讯作者：
Griscom, Bronson W.
影响因子：
5.9
作者：
Armenteras, Dolors;Marisol Gonzalez, Tania;Retana, Javier
通讯作者：
Retana, Javier
DOI：
10.1098/rstb.2017.0411
发表时间：
2018-11-19
影响因子：
6.3
作者：
Anderson, Liana Oighenstein;Neto, Germano Ribeiro;Oliveira e Cruz de Aragao, Luiz Eduardo
通讯作者：
Oliveira e Cruz de Aragao, Luiz Eduardo
影响因子：
16.6
作者：
Aragão LEOC;Anderson LO;Fonseca MG;Rosan TM;Vedovato LB;Wagner FH;Silva CVJ;Silva Junior CHL;Arai E;Aguiar AP;Barlow J;Berenguer E;Deeter MN;Domingues LG;Gatti L;Gloor M;Malhi Y;Marengo JA;Miller JB;Phillips OL;Saatchi S
通讯作者：
Saatchi S