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科技日报--大树在森林碳储量中占主导地位（上）

2022-03-22 10:01阅读：

http://blog.sina.cn/dpool/blog/u/5119766161

Large Trees Dominate Carbon Storage in Forests: 3% of Trees Account for 42% of Carbon Storage
大树在森林碳储量中占主导地位：3％的树占碳储量的42％
科技日报--大树在森林碳储量中占主导地位（上）

A recent study examining carbon storage in Pacific Northwest forests demonstrated that although large-diameter trees (21 inches) only comprised 3% of total stems, they accounted for 42% of the total aboveground carbon storage. The researchers highlight the importance of protecting large trees and strengthening existing forest management policies so that large trees can continue to sequester carbon and provide valuable ecosystem services as a cost-effective natural climate solution in worldwide forest e
cosystems. Credit: The authors
最近一项西北太平洋森林碳储量的研究表明，尽管大直径树（21英寸）仅占总树茎的3％，但它们却占地上碳总储量的42％。 研究人员强调了保护大树并加强现有森林管理政策的重要性，以使大树可以继续隔离碳并提供有价值的生态系统服务，以作为全球森林生态系统中具有成本效益的自然气候解决方案。图片来源：作者

Large-diameter trees make up 3% of total stems, but account for 42% of total carbon storage in Pacific Northwest forest ecosystems.
Older, large-diameter trees have been shown to store disproportionally massive amounts of carbon compared to smaller trees, highlighting their importance in mitigating climate change, according to a new study in Frontiers in Forests and Global Change.
大直径树木占总茎的3％，但却占西北太平洋森林生态系统总碳储量的42％。
根据《森林与全球变化前沿》的一项新研究，与较小的树木相比，较老的大直径树木能够存储大量的碳，这凸显了它们在缓解气候变化中的重要性。
Researchers examined the aboveground carbon storage of large-diameter trees (>21 inches or >53.3 cm) on National Forest lands within Oregon and Washington. They found that despite only accounting for 3% of the total number of trees on the studied plots, large trees stored 42% of the total above-ground carbon within these forest ecosystems. This study is among the first of its kind to report how a proposed policy could affect carbon storage in forest ecosystems, potentially weakening protections for large-diameter trees and contributing to huge releases of carbon dioxide to the atmosphere in the face of a changing climate.
研究人员检查了俄勒冈州和华盛顿州国家森林土地上大直径树木（> 21英寸或> 53.3厘米）的地上碳储量。他们发现，尽管仅占研究地块树木总数的3％，但大型树木却在这些森林生态系统中存储了地上碳总量的42％。 这项研究是首次报道拟议的政策如何影响森林生态系统中的碳储存，潜在地削弱对大直径树木的保护以及在面对气候变化时导致向大气中大量释放二氧化碳的研究。


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