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温远光,张健,严理,朱宏光,周晓果,尤业明,陆志成.豆科植物对石漠化土地生物碳固持能力的影响[J].广西科学,2015,22(6):573-577. [点击复制]
- WEN Yuan-guang,ZHANG Jian,YAN Li,ZHU Hong-guang,ZHOU Xiao-guo,YOU Ye-ming,LU Zhi-cheng.Restoring Ecosystem Carbon Sequestration Through Legume Species Afforestation: A Case Study for Karst Desertification Restoration[J].Guangxi Sciences,2015,22(6):573-577. [点击复制]
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| 豆科植物对石漠化土地生物碳固持能力的影响 |
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温远光1, 张健1, 严理1, 朱宏光1, 周晓果1, 尤业明1, 陆志成2
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| (1.广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 广西南宁 530004;2.北京林业大学林学院, 北京 100083) |
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| 摘要: |
| [目的]评估豆科植物功能群在恢复石漠化土地生态功能(如碳固持)中的速率及效果。[方法]以豆科植物顶果木Acrocarpus fraxinifolius、降香黄檀Dalbergia odorifera为驱动种实施再造林,对顶果木纯林、降香黄檀纯林、顶果木×降香黄檀混交林和对照(自然恢复的灌丛)进行系列取样调查,研究不同恢复类型群落的生物量、碳储量和碳固持速率。[结果]顶果木纯林、降香黄檀纯林和顶果木×降香黄檀混交林群落的生物量、碳储量和碳固持速率均显著高于对照,高出灌丛8倍以上;在3种恢复模式中,以顶果木纯林的生物量、碳储量和碳固持速率最高,降香黄檀纯林最低,顶果木×降香黄檀混交林居二者之间;方差分析结果表明,3种恢复模式的生物量、碳储量和碳固持速率与对照存在显著差异,但3种恢复类型间差异不显著。[结论]应用豆科植物功能群恢复石漠化土地的生物碳固持能力可以取得快速、高效和显著的效果,建议推广应用。 |
| 关键词: 豆科植物 功能群 恢复 石漠化 生物量碳 |
| DOI： |
| 投稿时间：2015-10-26 |
| 基金项目:国家自然科学基金项目(31460121),国家科技支撑计划项目(2011BAC09B02,2012BAD22B01)和广西重大专项计划项目(1222005)资助。 |
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| Restoring Ecosystem Carbon Sequestration Through Legume Species Afforestation: A Case Study for Karst Desertification Restoration |
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WEN Yuan-guang1, ZHANG Jian1, YAN Li1, ZHU Hong-guang1, ZHOU Xiao-guo1, YOU Ye-ming1, LU Zhi-cheng2
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| (1.State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Forestry College of Guangxi University, Nanning, Guangxi, 530004, China;2.Forestry College of Beijing Forestry University, Beijing, 100083, China) |
| Abstract: |
| [Objective] Through afforestation of legume species, the effects of restoration on ecological functions were evaluated in order to provide guidance for future restoration projects on karst desertification lands.[Methods] Three restoration forests (Acrocarpus fraxinifolius, Dalbergia odorifera pures, and the mixture of A.fraxinifolius and D.odorifera) and one experimental control (natural recovery) were estimated.Their differences in biomass, carbon stocks and carbon sequestration rate were evaluated, including above-ground and below-ground carbon pools, forest floor litter, and woody and herbaceunce species.[Results] The biomass, carbon stocks, and carbon sequestration rate in the three restoration types were significantly higher than that in the control sites (more than over 8 times), but there were no significant differences in biomass, carbon stocks, and carbon sequestration rate between the restoration types.Among the three restoring models, the biomass, carbon stocks, and carbon sequestration rate were highest in A.fraxinifolius pure forest, followed by the mixture of A.fraxinifolius and D.odorifera, and lowest in D.odorifera pure forest.[Conclusion] This study clearly demonstrated that active restoration can enhance ecosystem carbon sequestration in the area of karst desertification. |
| Key words: legume functional group restoration karst desertification biomass carbon stock |
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