历经两轮系统调查，山东林草种质资源“家底”基本查清

Core Insights - Shandong has completed two rounds of systematic surveys to clarify the types and distribution of forest and grass germplasm resources, significantly contributing to biodiversity data in China [2][3] Group 1: Germplasm Resource Survey - The recent survey identified 2,736 types of germplasm resources in Shandong, including 1,784 herbaceous plants and 952 woody plants, with an increase of 740 species since the 1990 publication of the "Flora of Shandong" [3] - The survey also recorded 71 new species for Shandong, including one new record for mainland China and one for the country overall [3] Group 2: Germplasm Resource Preservation - Germplasm resources are preserved through in-situ, ex-situ, and facility preservation methods, with facility preservation being the most stable and effective [4] - Shandong has established a national facility preservation library, which has preserved 69,700 samples, the largest and most diverse among similar facilities in China [4] Group 3: Economic Impact and Development - Since the 14th Five-Year Plan, Shandong has developed 146 approved superior tree species, enhancing economic forestry and supporting rural revitalization [4] - The newly bred "Qiu Yan" pomegranate variety has increased yield by 500 kg per mu, with market prices rising from approximately 5 yuan to 10 yuan per kg [4] - The early-maturing apple variety "Lu Li" fills a gap in early-ripening apple varieties in China, maturing 15-30 days earlier than traditional varieties and increasing yield by over 2,000 yuan per mu [4] Group 4: Research and Collaboration - Shandong collaborates with various domestic and international research institutions to enhance the scientific value of germplasm resources through wild plant introduction and genetic breeding [5] - The province is also establishing a plant garden system to promote public education and awareness about forest and plant conservation [5]