| 摘要: |
| 海拔梯度会影响水热条件的变化，而水热条件与植物的生长密切相关，研究海拔梯度对木本植物的生物量及碳储量的影响具有重要的意义。研究通过在广东古兜山沿海拔梯度设置14 个样地，分析海拔与木本植物生物量及碳储量的关系。结果显示：（1）随着海拔的升高研究区的木本植物科、属、种有下降的趋势，但相关性不显著。GDS-12 样地（海拔353 m）物种数量最多，分布有67 种、38 科、59属。不同样地的优势树种存在差异。（2）不同样地的根、干、枝、叶生物量随着海拔呈现“单峰”变化模式，在中等海拔（546 m）达到最大值，且木本植物生物量与海拔之间有显著相关关系（P < 0.05）。（3）蓄积量和碳储量随海拔的升高呈现“低- 高- 低”的变化趋势，且碳储量与海拔之间有显著相关关系（P < 0.05）。古兜山木本植物的生物量和碳储量均受到海拔梯度的影响，且在中等海拔区域，生物量及碳储量的值最大。在该区域的森林经理、培育过程当中，应该注重中等海拔地区的森林管理。 |
| 关键词: 海拔 木本植物 物种组成 生物量 碳储量 |
| DOI： |
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| 基金项目:古兜山省级自然保护区总体规划修编配套服务项目 |
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| Effects of Altitude Gradient on Biomass and Carbon Storage of Woody Plants in Gudoushan, Guangdong Province |
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CHEN Bihai1, WU Linfang2, He Bisheng3, LI Junren4, LIN Chunxiao4, GUO Yun5
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1.Gudoushan Forestry Centre，Jiangmen, Gungdong;2.Guangzhou Linfang Ecology Co.,Ltd.;3.Gudoushan Provincial Nature Reserve, Jiangmen, Gungdong;4.Gudoushan Provincial Nature Reserve，Jiangmen, Gungdong;5.South China Botanical Garden, Chinese Academy of Sciences
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| Abstract: |
| Elevation gradient affects the change of heat and water conditions, and hydrothermal condition is closely related to the growth of plants. It is significance to study the effects of altitude gradient on biomass and carbon storage of woody plants. In this study, 14 sample plots were set along the elevation gradient in Gudou Mountain in Guangdong. The results showed that: (1) Families, genera and species of woody plants in the study area showed a decreasing trend with the increase of altitude, but the correlation was not significant. The GDS-12 (353 m) had the largest number of species, with 67 species, 38 families and 59 genera. Different dominant tree species of different plots. (2) The biomass of different roots, stems, shoots and leaves showed a “single peak” change pattern with altitude, reaching the maximum value at the medium altitude (546m), and there was a significant correlation between the biomass of woody plants and altitude (P < 0.05). (3) The accumulation and carbon reserves showed a “low-high-low” change trend with the elevation of altitude, and there was a significant correlation between carbon reserves and altitude (P < 0.05). The biomass and carbon reserves of woody plants in Gudou Mountain were affected by the altitude gradient, and the biomass and carbon reserves were the highest in the medium altitude area. In the process of forest management and cultivation in this region, attention should be paid to forest management in medium altitude areas. |
| Key words: altitude woody plants species composition biomass carbon storage |
