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基于卫星SIF数据的过去21年的植被光合作用时间和空间进化模拟和归因分析:来自亚洲的案例研究

Haixiang Si¹, Ruiyan Wang^2,3, Xiaoteng Li¹

¹College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.

Environmental monitoring and assessment

|June 6, 2024

概括

从2001年到2021年,亚洲植被的光合作用增加了,这主要是由于人类活动而不是气候变化. 关键因素因地区而异,影响生态平衡和气候稳定.

科学领域:

地球和环境科学地球和环境科学
生态生态学生态生态学
气候科学气候科学

背景情况:

植物光合作用对于区域生态平衡和气候稳定至关重要.
了解其动态对于生态系统健康和气候变化缓解至关重要.
这项研究重点关注亚洲植被的光合作用,这是环境健康的关键指标.

研究的目的:

从2001年到2021年,分析亚洲植被光合作用中的时空变化.
研究气候和人类活动对这些变化的影响.
为环境保护和气候研究提供见解.

主要方法:

使用了2001-2021年全球OCO-2太阳诱导光 (GOSIF) 数据集.
分析了亚洲各地植物光合作用活动的时空趋势.
与气象因素和人类活动数据相关联的光合作用变化.

主要成果:

亚洲植物光合作用总体上升趋势,东部和南部地区的活动更高.
在特尔根高原,柬埔寨,老和叙利亚东北部等特定地区观察到显著下降.
人类活动 (56.44%) 对光合作用动态的影响比气候变化 (43.56%) 更大.
确定了不同的气候驱动因素:低/高度的温度,中度/高海拔的太阳辐射/降雨.

结论:

亚洲植被光合作用总体上呈上升趋势,但区域差异较大.
在推动这些变化方面,人类活动比气候变化发挥更重要的作用.
这些发现为环境保护,可持续性和气候研究提供了宝贵的前景.

关键词:

亚洲亚洲亚洲亚洲亚洲气候变化气候变化气候变化太阳引起的叶绿素光.时间空间的变化.植物的光合作用.

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