#8256. Upward expansion and acceleration of forest clearance in the mountains of Southeast Asia

October 2026publication date
Proposal available till 08-06-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Geography, Planning and Development;
Urban Studies;
Management, Monitoring, Policy and Law;
Nature and Landscape Conservation;
Ecology;
Food Science;
Global and Planetary Change;
Renewable Energy, Sustainability and the Environment;
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Abstract:
Southeast Asia contains about half of all tropical mountain forests, which are rich in biodiversity and carbon stocks, yet there is debate as to whether regional mountain forest cover has increased or decreased in recent decades. Here, our analysis of high-resolution satellite datasets reveals increasing mountain forest loss across Southeast Asia. Total mean annual forest loss was 3.22 Mha yr?1 during 20XX–20XX, with 31% occurring on the mountains. In the 20XXs, the frontier of forest loss moved to higher elevations (15.1 ± 3.8 m yr?1 during 20XX–20XX, P < 0.01) and steeper slopes (0.22 ± 0.05° yr?1 during 20XX–20XX, P < 0.01) that have high forest carbon density relative to the lowlands. These shifts led to unprecedented annual forest carbon loss of 424 Tg C yr?1, accelerating at a rate of 18 ± 4 Tg C yr?2 (P < 0.01) from 20XX to 20XX. Our results underscore the immediate threat of carbon stock losses associated with accelerating forest clearance in Southeast Asian mountains, which jeopardizes international climate agreements and biodiversity conservation.
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