Long term cone production of white spruce throughout boreal forests in North America
收藏data.gov2026-01-17 收录
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Data were compiled on the seed production of white spruce in order to assess the long-term trends in seed production over the past 60 years in North American boreal...
本数据集围绕白云杉（White Spruce）的种子产量汇编了相关数据，旨在评估过去60年间北美北方针叶林区域内白云杉种子产量的长期变化趋势……
