基于MaxEnt模型预测甜桃 (Prunus avium) 的潜在适合分布
Hongqun Li1, Xiaolong Peng2, Peng Jiang2
1School of Modern Agriculture and Bioengineering, Yangtze Normal University, Chongqing, China.
本研究使用MaxEnt模型模拟了中国的甜桃 (Prunus avium) 适合生长的种植面积. 关键发现确定了最佳的热量和降水条件,指导了这种有价值的果树的种植和资源分配.
科学领域:
- 园艺和农业科学 园艺和农业科学
- 生态建模和生物地理学
背景情况:
- 甜桃 (Prunus avium) 是一种具有经济意义的落叶果树,种植范围正在扩大.
- 关于中国适合甜桃生长地区的准确数据以前是有限的.
研究的目的:
- 在当前的环境条件下,模拟甜桃在中国的潜在分布.
- 确定影响甜桃适用性的关键环境因素.
- 为在中国引进,种植和管理甜桃提供科学基础.
主要方法:
- 使用最大 (MaxEnt) 模型进行潜在分布建模.
- 分析了关键的环境因素,包括热变量 (最冷月份的最低温度,最热季度的平均温度) 和降水 (年度降水).
- 使用曲线下面面积 (AUC) 值评估模型性能,取得了优异的结果 (>0.9).
主要成果:
- 确定了最佳环境范围:最寒冷月份的最低温度 (-14.5至4.5°C),最热季度的平均温度 (21.0至28.0°C) 和年度降水量 (500至1200毫米).
- 甜桃对极端寒冷,热,干旱和洪水条件都很敏感.
- 绘制了中国七个主要地理区域的合适区域,突出了当前开发和潜在扩张的特定省份和城市.
结论:
- 14个省/市被确定为甜桃开发和利用的主要地区.
- 十二个省份具有适度适合的地区需要补充灌和冬季绝缘.
- 该研究提供了关键数据,以优化资源分配,并指导中国甜桃的战略种植.
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