| 摘要: |
| 韶关市森林资源丰富, 因此科学评估其森林生态功能, 对于制定有效的森林管理和保护策略
至关重要。 研究通过利用反映森林生物量、 生物多样性和森林结构的有关因子, 按相对重要性对韶关市
不同优势树种森林的特征及生态功能等级进行了系统评估, 结果表明, 2023 年韶关市乔木林面积总计
117. 11×10
5
hm
2
, 碳储量总计 4 231. 61×10
5
t。 碳储量排前列的依次为其他软阔林 (758. 19×10
5
t)、 阔叶
混交林 (710. 62×10
5
t) 和其他硬阔林 (696. 02×10
5
t)。 马尾松 Pinus massoniana、 湿地松 P. elliottii 和针
阔混交林在树高和胸径方面表现出显著的优势; 阔叶混交林在郁闭度 ( 0. 700 ± 0. 001) 和总覆盖度
(86. 42%±0. 10%) 表现最佳; 针叶混交林、 其他软阔和阔叶混交林的枯枝落叶和腐殖质厚度较大。 杉木
Cunninghamia lanceolata 的公顷蓄积量最高 (130. 46±0. 43 m
3·hm
-2
), 其次是湿地松 (122. 24±1. 57 m
3·
hm
-2
) 和针阔混交林 (111. 70±0. 52 m
3·hm
-2
), 显示出其在碳储存和木材生产方面的潜力。 综合来看,
阔叶混交林、 针阔混交林和针叶混交林在韶关市的森林生态系统中表现出较高的生态功能, 特别是阔叶
混交林, 其综合生态功能远优于其他林型。 因此, 在未来的森林管理和保护中, 应优先考虑发展和维护
混交林, 以最大化其生态功能和环境效益。 这也与 “绿美广东” 政策中提出的 “营造高质高效乡土阔叶
混交林, 提升森林生态效益” 的目标一致。 |
| 关键词: 乔木林 优势树种 碳储量 生态功能 |
| DOI： |
| 分类号: |
| 基金项目:广东省林业科技创新项目 (2023KJCX001)。 |
|
| Characteristics and Ecological Function Assessment of Different Forests in Shaoguan City |
|
sun tong gao1, Ou Zhuoxian1, Guo Caixia1, Wen Yizhang1, Xian Lihua2
|
|
1.Guangzhou Zijing Forestry Planning and Design Co., Ltd;2.College of Forestry and Landscape Architecture, South China Agricultural University
|
| Abstract: |
| Shaoguan city is rich in forest resources, so scientifically evaluating its forest ecological functions is crucial for the formulation of effective forest management and conservation strategies. This study systematically evaluated the characteristics and ecological function levels of different dominant tree species in Shaoguan
city according to their relative importance by using relevant factors reflecting forest biomass, biodiversity and
forest structure. It was found that in 2023, the total area of arboreal forests in Shaoguan city was 117. 11×10
5 hm
2
, with a total carbon storage of 4 231. 61×10
5
t. The top carbon storage was observed in other malacophyll
broadleaved forests (758. 19×10
5
t), mixed broadleaved forests (710. 62×10
5
t), and other sclerophyll broadleaved forests (696. 02×10
5
t). Significant advantages in tree height and diameter at breast height were shown
by Pinus massoniana forests, P. elliottii forests, and mixed coniferous and broadleaved forests. The best performance in canopy density ( 0. 700 ± 0. 001) and total coverage ( 86. 42% ± 0. 10%) was exhibited by mixed
broadleaved forests. Greater litter and humus thickness were found in mixed coniferous forests, other malacophyll broadleaved forests, and mixed broadleaved forests. The highest per-hectare accumulation (130. 46±
0. 43 m
3·hm
-2
) was recorded for Cunninghamia lanceolata forests, followed by P. elliottii forests (122. 24±
1. 57 m
3·hm
-2
) and mixed coniferous and broadleaved forests (111. 70±0. 52 m
3·hm
-2
), indicating their
potential in carbon storage and timber production. Overall, higher ecological functions in Shaoguan city′s forest
ecosystems were exhibited by mixed broadleaved forests, mixed coniferous and broadleaved forests, and mixed
coniferous forests, especially mixed coniferous and broadleaved forests, whose comprehensive ecological functions far surpassed other forest types. Therefore, in future forest management and conservation efforts, the development and maintenance of mixed forests should be prioritized to maximize their ecological functions and environmental benefits. This is aligned with the “Green and Beautiful Guangdong” policy, which aims to “create
high-quality and efficient native mixed broadleaved forests and enhance forest ecological benefits. ” |
| Key words: Arbor Forest Dominant Tree Species ?Carbon Storage Ecological Functions |
