Colonization by native species enhances the carbon storage capacity of exotic mangrove monocultures

Carbon Balance and Management

卷:15

Huaye Sun¹  Yisheng Peng¹  Yingjie Cao¹  Ziying He²  Zhan Hu²  Shing Yip Lee³ 

[1] School of Environmental Science and Engineering, Sun Yat-Sen University;

[2] School of Marine Science, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University;

[3] Simon F. S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong;

关键词: Mangrove plantation;    Carbon storage;    Mixed forest;    Kandelia obovata;    Sonneratia apetala;   

DOI  :  10.1186/s13021-020-00165-0

来源: DOAJ

【 摘 要 】

Abstract Background The fast-growing introduced mangrove Sonneratia apetala is widely used for mangrove afforestation and reforestation in China. Some studies suggested that this exotic species outperforms native species in terms of carbon sequestration potential. This study tested the hypothesis that multi-species mangrove plantations might have higher carbon sequestration potential than S. apetala monocultures. Results Our field measurements at Hanjiang River Estuary (Guangdong province, China) showed that the carbon stock (46.0 ± 3.0 Mg/ha) in S. apetala plantations where the native Kandelia obovata formed an understory shrub layer was slightly higher than that in S. apetala monocultures (36.6 ± 1.3 Mg/ha). Moreover, the carbon stock in monospecific K. obovata stands (106.6 ± 1.4 Mg/ha) was much larger than that of S. apetala monocultures. Conclusions Our results show that K. obovata monocultures may have a higher carbon accumulation rate than S. apetala monocultures. Planting K. obovata seedlings in existing S. apetala plantations may enhance the carbon sink associated with these plantations.

【 授权许可】

Unknown