Transboundary forest management strategies are needed to adapt to climate change in East Asian temperate forests
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Cli mate impacts traverse administrative borders, so paradigms that address forest preservation and adaptation strategies across international borders are needed. Here, we measure climate change exposure for forests of the East Asian Temperate Broadleaf and Mixed Forest Biome, which occupies 3,092,381 km2 and covers 18 ecoregions. This Biome includes parts of China, North and South Korea, Japan, and the Russian Federation.
We quantify future climate change exposure as the change per pixel in climate conditions relative to the baseline (1960-1990) climate conditions occupied by each forest type and project future climate change exposure levels to each forest type within and among the ecoregions. We use the entire biome and its ecoregions as units within which to quantify climate change exposure. We then examine the resulting spatial patterns of climate change exposure relative to provincial and international boundaries to identify several levels at which governments will need transboundary coordination in order to develop forest preservation and climate adaptation strategies. By 2070, using the RCP8.5 emission scenario, 24.5-65.7% of these forests enter non-analog or the most marginal 1 % of baseline climate conditions. These results reveal the need for extensive transboundary governmental coordination, including forest preservation actions among 51 of 54 provinces that will retain some forest locations in climatically stable or low-risk conditions. Furthermore, among 96 provinces with forests that will be highly exposed, 90 will require transboundary climate change adaptation strategies because these forests span their borders, including the border areas of China, the Russian Federation, and
North Korea. The analytical approach of this study could serve as a template for supporting transboundary institutional coordination to address climate change.
Keywords: Climate Change Risk; Temperate Forests; Eas;t Asia; Transboundary Coordination; Climate Adaptation Strategies
ID: 3608288