Taiwan’s Tallest Tree Is 84 Meters High and 1,000 Years Old
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📰 The quick summary: Researchers in Taiwan have identified the country’s tallest known tree, an 84.1-meter, roughly 1,000-year-old Taiwania conifer named Heaven Sword of the Da’an River, shedding new light on the remarkable biodiversity these ancient giants support.
📈 One key stat: Taiwan’s tallest trees have recorded a death rate of 4% to 5% over the past decade, a figure researchers describe as far beyond what they anticipated.
💬 One key quote: “Height is an engine for biodiversity,” said Chris Swanston, director of science for Save the Redwoods League, describing how a single ancient tree can house dozens of generations of species within its canopy.
1️⃣ The big picture: Taiwan’s forests are home to some of the world’s oldest and tallest trees, and researchers have now confirmed the tallest among them: a Taiwania cryptomerioides conifer stretching 84.1 meters, taller than the average 20-storey building, estimated to be around 1,000 years old. Named Heaven Sword of the Da’an River, the tree was identified through a combination of lidar scanning and old-fashioned tape measurements by a team that hiked for days through remote terrain to reach it. These ancient giants are far more than record-setters: each one functions as a layered ecosystem, hosting rare orchids, flying squirrels, owls, lichen, and rhododendrons across its many vertical zones. Yet tall trees worldwide face growing threats from wildfires, droughts, stronger storms, and rising temperatures, with Taiwan’s own tall tree death rate reaching 4% to 5% over the past decade. Researchers hope that mapping and documenting these trees will build public awareness and support for protecting them.
2️⃣ Why is this good news: Identifying and formally documenting Heaven Sword gives scientists a critical reference point for monitoring the health of Taiwan’s ancient forest giants over time. Each tree like this one acts as a biodiversity hotspot in its own right, sheltering rare species across dozens of vertical meters of habitat that no other ecosystem can replicate. Advances in lidar technology, combined with on-the-ground fieldwork, are making it increasingly possible to find and record tall trees in even the most remote and rugged parts of the world, meaning more giants may still be waiting to be discovered. A better understanding of where and why these trees grow, including new findings about Taiwania seedlings thriving after landslides, opens up new avenues for conservation and forest regeneration. Sharing these discoveries with the public also builds the kind of emotional connection to ancient trees that motivates broader conservation action.
3️⃣ What’s next: Dr. Rebecca Hsu’s team plans to study the habitat conditions that allow Taiwania trees to grow so tall, including their surprising tendency to establish after landslides. Researchers globally continue to refine lidar technology to improve accuracy in uneven terrain and identify more unrecorded tall trees, particularly in the Amazon and other dense tropical forests. Conservationists are also working on strategies to protect ancient trees from intensifying threats such as wildfires, stronger typhoons, and climate-driven droughts.
Read the full story here: The Guardian – A thousand years old and 20 storeys high: tracking down Taiwan’s tallest trees
