Integrative Biology Journals

JOURNAL OF FORESTRY RESEARCH ›› 2024, Vol. 35 ›› Issue (1): 115-.DOI: 10.1007/s11676-024-01761-3

• Original Article • Previous Articles     Next Articles

Effect of thinning intensity on the carbon sequestration of natural mixed coniferous and broadleaf forests in Xiaoxing’an Mountains, China

Hangfeng Qu1,2, Xibin Dong1,b(), Hui Liu1, Baoshan Zhang1, Tong Gao1, Yuan Meng1, Yunze Ren1, Ying Zhang1   

  1. 1 Key Laboratory of Sustainable Forest Management and Environmental Microorganism Engineering of Heilongjiang Province, Northeast Forestry University, 150040, Harbin, People’s Republic of China
    2 Harbin Forestry Machinery Research Institute, State Forestry and Grassland Administration, 150086, Harbin, People’s Republic of China
  • Received:2023-12-24 Accepted:2024-05-21 Online:2024-10-16 Published:2024-10-16
  • Contact: Xibin Dong

Abstract:

To study the effect of thinning intensity on the carbon sequestration by natural mixed coniferous and broadleaf forests in Xiaoxing’an Mountains, China, we established six 100 m × 100 m experimental plots in Dongfanghong Forest that varied in thinning intensity: plot A (10%), B (15%), C (20%), D (25%), E (30%), F (35%), and the control sample area (0%). A principal component analysis was performed using 50 different variables, including species diversity, soil fertility, litter characteristics, canopy structure parameters, and seedling regeneration parameters. The effects of thinning intensity on carbon sequestration were strongest in plot E (0.75), followed by D (0.63), F (0.50), C (0.48), B (0.22), A (0.11), and the control (0.06). The composite score of plot E was the highest, indicating that the carbon sequestration effect was strongest at a thinning intensity of 30%. These findings provide useful insights that could aid the management of natural mixed coniferous and broadleaf forests in Xiaoxing’an Mountains, China. This information has implications for future studies of these forests, and the methods used could aid future ecological assessments of the natural forests in Xiaoxing’an Mountains, China.

Key words: Thinning intensity, Xiaoxing’an Mountains,?China, Natural mixed coniferous and broadleaf forest, Carbon sequestration