Core Insights - The article emphasizes the importance of seed collection and preservation in the face of global climate change and ecological destruction, highlighting the role of seed banks as a "lifeboat" for endangered plant species [2][3] Group 1: Seed Collection and Preservation - Seed collection is not merely about gathering seeds; it involves understanding the entire ecosystem and the diverse plant life associated with it [1] - The seeds collected from the tallest tree in Asia are being cultivated in Shanghai Chenshan Botanical Garden, resulting in over 500 seedlings, showcasing successful ex-situ conservation efforts [2] - The seeds can be stored in low-temperature cold storage for over a hundred years, allowing for potential revival and natural repopulation of species [2] Group 2: Research and Development - Research on seed resources has expanded to include space, where seeds are sent to space to utilize microgravity and radiation for potential beneficial mutations, enhancing breeding opportunities [3] - Chenshan Botanical Garden has collected over 3,000 standardized plant seed samples, totaling more than 70 million viable seeds, indicating a significant effort in biodiversity preservation [3] - The article suggests that every plant species holds unknown potential, which could lead to sustainable development and a hopeful future for both plants and humanity [3]

"氮和水能通过改变植物群落的物候模式，影响群落的时间稳定性，是植物生长和存活的关键调节 因子。"马妙君介绍。氮富集和降雨变化对青藏高原高寒草甸生态系统的影响日益显著，因此，研究氮 富集和降雨变化下青藏高原高寒草甸生态系统的稳定性维持机制意义重大。 研究团队依托兰州大学甘南草原生态系统国家野外科学观测研究站，连续4年对55种高寒草甸植物 个体的出叶和开花物候进行观测。研究中，团队结合植物群落生物量动态、物种异步性等指标，揭示了 高寒草甸植物物候对氮富集、降水变化的响应以及其对植物群落稳定性等方面的影响。 研究发现，氮富集会对青藏高原高寒草甸植物群落生物量时间稳定性产生负面影响，但与降水变化 无关。氮富集背景下，高寒草甸生态系统时间稳定性降低与物种多样性丧失无关，而是由物种异步性和 优势功能群时间稳定性共同决定，且受高寒植物物候的调节。 "此研究创新性地从高寒植物物候角度，揭示了氮富集影响高寒草甸生态系统稳定性的机理，强调 了植物物候是理解未来气候情景下植物群落稳定性变化的关键，为青藏高原高寒草甸生态系统保护提供 了新的视角。"马妙君说。（记者颉满斌 通讯员余若怡） 原标题：氮富集影响高寒草甸生态系统稳定性机理揭 ...