十五年深耕育良种 杭州珍贵树种绿意满枝头

Core Insights - The article highlights the advancements in modern seedling cultivation technology at the Hangzhou Jiande Guarantee Seedling Base, showcasing a shift from traditional methods to a more scientific and efficient approach [2] - The efforts of the Hangzhou Municipal Academy of Forestry Sciences over the past 15 years have been pivotal in preserving and cultivating precious tree species, leading to significant improvements in seedling quality and survival rates for afforestation projects [3][5] - Strong policy support since 2010 has facilitated the development of the precious tree species industry in Hangzhou, including comprehensive surveys and the establishment of a multi-faceted genetic resource protection system [4] Group 1: Technological Advancements - The intelligent irrigation system at the seedling base has achieved a 30%-40% reduction in water and fertilizer usage and a 20%-30% decrease in pesticide application, resulting in cost savings of approximately 400 yuan per mu and over 200,000 yuan in annual labor costs [2] - The implementation of smart cultivation techniques has significantly enhanced the uniformity and robustness of precious tree seedlings, laying a solid foundation for higher survival rates in subsequent afforestation efforts [3] Group 2: Research and Development - The expert team has successfully collected and preserved 1,874 samples of precious tree species, covering 15,137 trees, with a survey coverage rate of 98%, contributing to a robust genetic resource database [4] - A comprehensive traceability system has been established for seedlings, ensuring that each batch of precious tree species has a unique identification, allowing for full lifecycle tracking from nursery cultivation to field planting [5] Group 3: Policy Support and Industry Growth - Since 2010, over 10 supportive policies have been introduced to guide the development of the precious tree species industry, including the "Implementation Opinions on Vigorously Developing Precious Tree Species" [4] - The usage rate of precious tree species has reached over 75%, transforming previously underutilized species into sustainable and manageable green resources [6]