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全球叶子硫固体测量和与和的关系:树系,生长形式和环境控制
Liangjian Zhang1, Zhenjun Zuo1, Xiujuan Qiao2
1The National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan 430072, People's Republic of China.
Proceedings. Biological sciences
|July 23, 2024
概括
全球植物叶硫 (S) 模式被揭示,显示S, (N) 和 (P) 相互连接. 遗传学和环境变异性显著影响这些必不可少的生物元素,而遗传学起着更大的作用.
科学领域:
- 植物生态学植物生态学
- 生物地质化学生物地质化学
- 人类遗传学 是一个学科.
背景情况:
- 硫 (S) 是一种重要的生物元素,对植物的调节和催化功能至关重要,与 (N) 和 (P) 密切相关.
- 叶子S的全球静态度图案及其与叶子N和P的关系尽管具有生态意义,但仍未得到充分研究.
研究的目的:
- 在各种植物物种中调查叶子硫 (S) 和其与叶子 (N) 和 (P) 的关系的全球史泰基度模式.
- 确定植物遗传学和环境因素对植物叶子中这些关键生物元素的度和关系的影响.
主要方法:
- 编制了一个大型的全球数据集,包括来自2600个植物物种的31,939个基于叶子的记录,分布在6,652个地点.
- 采用标准主要轴分析用于二变元素关系和类遗传学线性混合效应模型用于变异分区.
- 采用多重回归模型来评估环境变量对生物元素度的重要性.
主要成果:
- 全球几何平均叶子度为S: 1.44毫克g-1,N: 15.70毫克g-1和P: 1.27毫克g-1,具有显著的跨组变化.
- 叶子S,N和P在所有物种中都显示出正相关性,在植物群体中缩放指数不同.
- 遗传学和环境变异性,特别是平均温度上的变异性,都调节了生物元素度,遗传学解释了更多的变异性.
结论:
- 植物遗传是叶子S,N和P度的较强驱动因素,而不是环境,硫受植物遗传类型的影响最大.
- 了解这些全球模式对于预测植物对环境变化和营养循环的反应至关重要.
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