文章摘要
夏庭君,姜顺身,刘才生,汪义亚.基于i-Tree Eco模型的武汉东湖风景区植物群落碳收支平衡分析[J].林业调查规划,2026,51(3):175-184
基于i-Tree Eco模型的武汉东湖风景区植物群落碳收支平衡分析
Carbon Budget Balance Analysis of Plant Communities in Wuhan East Lake Scenic Area Based on i-Tree Eco Model
  
DOI：
中文关键词: 风景区  植物群落  碳收支水平  i-Tree Eco模型
英文关键词: scenic area  plant community  carbon budget level  i-Tree Eco model
基金项目:湖北省林业科技支撑重点项目(〔2024〕LYKJ16).
作者单位
夏庭君 湖北生态工程职业技术学院,湖北 武汉 430200 
姜顺身 浙江农林大学,浙江 杭州 311300 
刘才生 武汉新区建设开发投资有限公司,湖北 武汉 430015 
汪义亚 湖北生态工程职业技术学院,湖北 武汉 430200 
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中文摘要:
      研究风景游憩绿地中植物群落碳收支,揭示植物群落结构对碳收支水平的影响。以武汉东湖风景区为研究对象,选取24个具有典型性的植物群落为研究样地,使用i-Tree Eco模型和生命周期评价法估算植物群落年固碳量和年碳排量,探究郁闭度和栽植密度对植物群落碳收支水平的影响,以期提高风景游憩绿地景观中植物群落碳收支水平。结果表明,24个植物群落年碳收支量的平均值为2 372.21 kgC/(a·hm2),年固碳量平均值为7 352.42 kgC/(a·hm2),年碳排放量平均值为4 980.21 kgC/(a·hm2);年碳收支量在郁闭度保持在0.45~0.60、栽植密度控制在900~1 050株/hm2时达峰值,后呈下降趋势。群落郁闭度和栽植密度会影响群落碳收支,在营造风景游憩绿地景观时应优化植物群落结构、控制郁闭度和栽植密度。
英文摘要:
      The carbon budget of plant communities in scenic recreational green spaces was investigated, and the influence of community structure on carbon budget levels was revealed. Wuhan East Lake Scenic Area was selected as the study site, and 24 plant communities within the park were designated as study plots. The annual carbon sequestration and carbon emissions of the plant communities were estimated using the i-Tree Eco model and the life cycle assessment method. The effects of canopy closure and planting density on the carbon budget levels of plant communities were examined to improve the carbon budget performance of plant communities in scenic recreational green space landscapes. The results showed that the average annual carbon budget of the plant communities was 2 372.21 kgC/(a·hm2), with an average annual carbon sequestration of 7 352.42 kgC/(a·hm2) and an average annual carbon emission of 4 980.21 kgC/(a·hm2). The peak annual carbon budget was attained when canopy density was maintained between 0.45 and 0.60 and planting density was controlled between 900 and 1 050 plants/hm2, followed by a decreasing trend. Community canopy closure and planting density significantly affect community carbon budget. During future development of scenic recreational green space landscapes, plant community structure should be optimized, and canopy closure and planting density should be controlled.
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