“太空望远镜”，打开看森林的新视野（唠“科”）

Core Insights - The article discusses the significance of tree species diversity in enhancing forest photosynthesis, which is crucial for carbon absorption in terrestrial ecosystems [2][3]. Group 1: Importance of Tree Species Diversity - Tree species diversity is identified as a key factor influencing global forest photosynthesis, second only to temperature [3]. - The study reveals that forests with richer species diversity exhibit stronger photosynthetic capabilities [3]. Group 2: Mechanisms of Enhanced Photosynthesis - Biodiversity enhances photosynthesis through two main pathways: increasing canopy complexity and improving nutrient absorption from the soil [3]. - A diverse forest canopy allows for better light utilization by different plant species growing at various heights and times [3]. - Enhanced nutrient absorption leads to improved leaf nitrogen content, which in turn boosts photosynthetic efficiency [3]. Group 3: Ecological Restoration Strategies - The article suggests that mimicking natural ecosystems by planting mixed forests can significantly improve biodiversity and carbon sequestration in southern China [4]. - In colder regions, targeted cultivation of cold-resistant tree species is recommended to enhance survival rates and biodiversity [4].