“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 dioxide 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]. - Richer tree species diversity leads to stronger photosynthetic capacity in forests [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]. - Different plant species grow at varying heights and times, optimizing light exposure and nutrient uptake, which collectively boosts photosynthesis [3]. Group 3: Ecological Restoration Strategies - Mimicking natural ecosystems by planting mixed forests can significantly improve biodiversity and carbon sequestration in southern China [4]. - Targeted cultivation of cold-resistant tree species in northeastern regions can enhance survival rates and biodiversity [4].