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在气候变化情景下,中国大老银杏的分布模式
Chunping Xie1, Chang Liu2, Houhe Wang1
1Tropical Biodiversity and Bioresource Utilization Laboratory Qiongtai Normal University Haikou China.
Ecology and evolution
|May 17, 2024
概括
气候变化威胁着大型古老的金科比洛巴树 (LOGTs),这是一个重要的自然和文化资源. 未来的气候情景预测,息地的大量丧失和碎片化,危及它们的长期生存.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 气候变化影响研究 影响研究
背景情况:
- 大型古老的金科比洛巴树 (LOGTs) 在中国具有重要的生态和文化价值.
- 这些古老的树木正日益受到气候变化和人类活动的威胁,需要进行保护评估.
研究的目的:
- 根据当前和未来的气候变化情景 (到2100年二氧化碳增加一倍) 预测LOGTs的空间分布模式.
- 确定影响LOGT分布的关键生物气候因素,并评估潜在的息地转移和碎片化.
主要方法:
- 使用了BIOCLIM和DOMAIN物种分布模型.
- 分析了604个验证的LOGT发生记录和19个生物气候变量.
- 使用主要成分分析来确定占主导地位的生物气候驱动因素.
主要成果:
- 目前的LOGT分布跨越中国中部/东部的亚热带到温带,偏好低海拔和沿海地区.
- 年度降水量和冬季低温被确定为主要的分布因素.
- 未来的气候场景预测,息地在南部的边缘和碎片化损失息地,一些潜在的新息地,虽然碎片化,息地.
结论:
- 气候变化对LOGT的长期生存构成重大威胁,预计范围下降和息地碎片化表明了这一点.
- 了解分布模式和驱动因素对于制定有效的自然文化遗产保护战略至关重要.
- 可持续的管理实践对于减轻全球变化对LOGT的影响至关重要.
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