植物研究 ›› 2024, Vol. 44 ›› Issue (5): 753-762.doi: 10.7525/j.issn.1673-5102.2024.05.012
• 生理与生态 • 上一篇
栾宜通1, 李念森2, 乔璐靖1, 琚存勇1(), 蔡体久1, 孙佩丽2
收稿日期:
2024-06-03
出版日期:
2024-09-20
发布日期:
2024-09-23
通讯作者:
琚存勇
E-mail:qucy09@nefu.edu.cn
作者简介:
栾宜通(1997—),男,硕士研究生,主要从事森林植物资源研究。
基金资助:
Yitong LUAN1, Niansen LI2, Lujing QIAO1, Cunyong JU1(), Tijiu CAI1, Peili SUN2
Received:
2024-06-03
Online:
2024-09-20
Published:
2024-09-23
Contact:
Cunyong JU
E-mail:qucy09@nefu.edu.cn
摘要:
以细鳞河国家级自然保护区云冷杉红松(Picea koraiensis-Abies nephrolepis-Pinus koraiensis)林固定监测样地为对象,采用α多样性指数、生态位测定、方差比率法(VR)、χ2 检验、Spearman秩相关检验和M. Godron稳定性分析云冷杉红松林树种多样性、优势树种生态位、种间联结及群落稳定性。结果表明:(1)样地共有乔木树种14科14属20种,林木分布均匀,α多样性指数较高;(2)样地生态位重叠指数较高,但生态位重叠指数较大 (>0.7)或较小(<0.4)的情况较少,生态位分化程度一般;(3)样地总体关联性呈不显著正关联,主要树种种间以正相关和不显著相关为主,种间独立性较强;(4)样地M. Godron稳定性计算结果落于点(32.79,67.21),远离稳定点(20,80),群落稳定性较差;(5)红松重要值与生态位宽度最大,与其他树种的生态位重叠指数均值高于样地均值,以大径级个体为主,树种相对频度较低。因此,在云冷杉红松林生态系统恢复过程中,应进行适当的人工干预,促进红松种群数量恢复,调节种间关系,提高种间联结强度,在群落稳定性下降时加强珍稀植物种群监测及保护。
中图分类号:
栾宜通, 李念森, 乔璐靖, 琚存勇, 蔡体久, 孙佩丽. 云冷杉红松林优势树种生态位、种间联结及群落稳定性[J]. 植物研究, 2024, 44(5): 753-762.
Yitong LUAN, Niansen LI, Lujing QIAO, Cunyong JU, Tijiu CAI, Peili SUN. Niches, Interspecific Associations and Community Stability of Dominant Tree Species of Piceakoraiensis-Abies nephrolepis-Pinus koraiensis Forest[J]. Bulletin of Botanical Research, 2024, 44(5): 753-762.
表1
样地树种重要值 (%)
物种 Species | 相对频度 Relative frequency | 相对显著度 Relative dominance | 相对多度 Relative abundance | 重要值 Important value |
---|---|---|---|---|
红松 Pinus koraiensis | 10.36 | 45.77 | 12.95 | 23.03 |
臭冷杉 Abies nephrolepis | 10.81 | 22.86 | 22.75 | 18.81 |
硕桦 Betula costata | 10.36 | 4.76 | 9.48 | 8.20 |
青楷槭 Acer tegmentosum | 9.01 | 2.84 | 10.43 | 7.43 |
色木槭 Acer pictum | 9.01 | 4.04 | 6.79 | 6.61 |
花楷槭 Acer ukurunduense | 9.46 | 1.32 | 9.00 | 6.60 |
水曲柳 Fraxinus mandschurica | 7.21 | 3.39 | 7.27 | 5.95 |
糠椴 Tilia mandshurica | 5.86 | 2.39 | 6.79 | 5.01 |
鱼鳞云杉 Picea jezoensis var. microsperma | 5.86 | 5.00 | 3.32 | 4.73 |
裂叶榆 Ulmus laciniata | 7.66 | 2.53 | 3.79 | 4.66 |
紫椴 Tilia amurensis | 4.50 | 3.01 | 2.21 | 3.24 |
暴马丁香 Syringa reticulata subsp. amurensis | 2.70 | 0.31 | 2.53 | 1.85 |
黄檗 Phellodendron amurense | 2.25 | 0.28 | 0.79 | 1.11 |
胡桃楸 Juglans mandshurica | 1.35 | 0.08 | 0.47 | 0.63 |
黑桦 Betula dahurica | 0.45 | 0.87 | 0.16 | 0.49 |
红皮云杉 Picea koraiensis | 0.90 | 0.02 | 0.47 | 0.46 |
龙牙楤木 Aralia elata | 0.90 | 0.04 | 0.32 | 0.42 |
杉松 Abies holophylla | 0.45 | 0.41 | 0.16 | 0.34 |
花楸树 Sorbus pohuashanensis | 0.45 | 0.04 | 0.16 | 0.22 |
大黄柳 Salix raddeana | 0.45 | 0.04 | 0.16 | 0.22 |
表3
样地主要树种生态位宽度及生态位重叠指数
物种 Species | 生态位重叠指数 Niche overlap index | 生态位宽度 Niche width | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Pk | An | Bc | At | Ap | Au | Fm | Tm | Pj | Levins指数 Levins index | Shannon指数 Shannon index | |
Pk | 18.08 | 3.00 | |||||||||
An | 0.77 | 15.75 | 2.91 | ||||||||
Bc | 0.76 | 0.46 | 16.22 | 2.93 | |||||||
At | 0.64 | 0.55 | 0.63 | 13.04 | 2.78 | ||||||
Ap | 0.62 | 0.53 | 0.65 | 0.58 | 12.93 | 2.75 | |||||
Au | 0.58 | 0.72 | 0.48 | 0.47 | 0.54 | 13.26 | 2.80 | ||||
Fm | 0.66 | 0.40 | 0.79 | 0.44 | 0.44 | 0.34 | 12.90 | 2.65 | |||
Tm | 0.55 | 0.35 | 0.63 | 0.35 | 0.38 | 0.33 | 0.31 | 6.18 | 2.17 | ||
Pj | 0.43 | 0.66 | 0.30 | 0.39 | 0.47 | 0.56 | 0.33 | 0.28 | 8.02 | 2.33 | |
Ul | 0.67 | 0.58 | 0.66 | 0.48 | 0.57 | 0.57 | 0.69 | 0.24 | 0.43 | 14.40 | 2.75 |
表5
样地主要树种 χ2 检验和Spearman秩相关检验结果
检验方法 Test methods | 正关联(相关) Positive association (correlation/%) | 负关联(相关) Negative association (correlation/%) | 无关联(相关) No association (correlation/%) | ||||||
---|---|---|---|---|---|---|---|---|---|
极显著 (P≤0.01) | 显著 (P≤0.05) | 不显著 (P>0.05) | 总数 | 极显著 (P≤0.01) | 显著 (P≤0.05) | 不显著 (P>0.05) | 总数 | ||
χ2 检验 χ2 test | 0(0) | 0(0) | 38(84.44) | 38(84.44) | 0(0) | 0(0) | 7(15.56) | 7(15.56) | 0(0) |
Spearman秩相关检验 Spearman’s rank correlation test | 0(0) | 2(4.44) | 23(51.11) | 25(55.56) | 0(0) | 1(2.22) | 17(37.78) | 18(40.00) | 2(4.44) |
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