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Forest and Grassland Resources Research ›› 2025›› Issue (2): 109-116.doi: 10.13466/j.cnki.lczyyj.2025.02.011

• Research paper • Previous Articles     Next Articles

Introduction performance of nine Picea species in Hohhot

ZHAO Li1,2(), ZHANG Haidong1, LIU Shanghua3, WANG Meizhen1, SANG Hao1, LI Jiatao1, WANG Fude4   

  1. 1. Inner Mongolia Academy of Forestry Sciences,Hohhot 010010,China
    2. Key Laboratory of State Forestry and Grassland Administration for Sandy Land Biological Resources Conservation and Cultivation,Hohhot 010010,China
    3. Ordos Research Institute of Forestry and Grassland Science,Ordos 017010,Inner Mongolia,China
    4. Forestry Research Institute in Heilongjiang Province,Harbin 150081,China
  • Received:2024-12-18 Revised:2025-04-01 Online:2025-04-28 Published:2025-12-04

Abstract:

To identify high-quality Picea resources with strong adaptability in Hohhot,the introduction performance of nine introduced and cultivated Picea species(38-46 years) in the Hohhot Arboretum was evaluated by a model of incorporating growth traits,stress resistance and reproductive characteristics.The results showed that Picea wilsonii exhibited the fastest growth(annual average height growth and annual average DBH growth),while P.purpurea and P.glauca showed the poorest height and DBH growth,respectively.P.crassifolia showed the largest branch diameter growth in the current year,while P.glauca showed the smallest branch diameter growth.P.schrenkiana and P.obovata demonstrated strong stress resistance,whereas P.abies suffered severe dieback.All nine Picea species could flower and produce seeds,but their seed quality varied significantly.Species were classified into four groups:P.crassifolia,P.asperata and P.meyeri(Group I) exhibited high seed embryo rates,germination rates,and overall seed quality;P.schrenkiana,P.obovata,P.wilsonii and P.glauca (Group II) had moderate growth,low dieback rates,but poorer seed viability;P.purpurea(Group III) showed weak reproductive capacity,while P.abies(Group IV) grew rapidly but had low stress resistance.Group I is suitable for large-scale promotion in spruce-friendly zones of Inner Mongolia due to rapid growth and high seed quality.Group II is recommended as landscape species for ornamental planting.Group III requires further introduction trials to assess adaptability.Group IV is not recommended for planting in central and western Inner Mongolia due to poor stress resistance.The findings provide critical guidance for optimizing spruce cultivation.

Key words: Picea, introduction performance, analytic hierarchy process, comprehensive evaluation model, cluster analysis

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