模拟Chengiodendron marginatum的气候避难所:未来保护规划的洞察力
Zhirun Yu1,2, Quanhong Yan1,2, Yilin Li1,2
1Co-Innovation Center for the Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China.
Plants (Basel, Switzerland)
|July 12, 2025
概括
珍贵的繁殖树Chengiodendron marginatum面临着由于气候变化的息地转移. 海南,台湾和广西的关键避难所对其保护至关重要.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 适应气候变化 适应气候变化
背景情况:
- 长叶 (Chengiodendron marginatum) 是一棵常青树/灌木,属于科,是繁殖的关键生殖质资源.
- 了解它对气候变化的适应反应对于有效的保护战略至关重要.
研究的目的:
- 在各种气候变化情景下调查C. marginatum潜在适合息地的变化模式.
- 为物种的长期生存确定关键的气候避难所.
主要方法:
- 使用了与GIS空间分析集成的最大 (Maxent) 建模.
- 采用了当前发生记录和古气候数据,从Holocene中期到未来的预测 (2050年代,2070年代).
- 评估了两个对比的气候场景:SSP126 (低排放) 和SSP585 (高排放).
主要成果:
- 该模型实现了出色的预测准确性 (AUC = 0.942),降水变量是主要的分布驱动因素.
- 目前适合息地的面积约为98.38×10^4平方公里,主要分布在中国东部,中部和南部.
- 未来的预测表明,适度的息地减少和高适宜性地区的大量减少,海南南部,台湾和广西东北部的难民持续存在.
结论:
- 预计气候变化将减少适合C. marginatum的息地,特别是高度适合的地区.
- 南海南,台湾和广西东北部被确定为关键的气候避难所.
- 这些发现为了解物种对气候变化的反应和指导保护工作提供了基础.
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