| 广东省红树林土壤碳储量及固碳潜力研究 |
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| 引用本文： | 覃国铭,张靖凡,周金戈,卢哲,王法明.广东省红树林土壤碳储量及固碳潜力研究[J].热带地理,2023,43(1):23-30. |
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| 作者姓名： | 覃国铭 张靖凡 周金戈 卢哲 王法明 |
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| 作者单位： | 1.中国科学院华南植物园 小良热带海岸带生态系统定位研究站，广州 510650;2.华南国家植物园，广州 510650;3.中国科学院大学，北京 100049 |
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| 基金项目： | 广东省科技厅野外台站支撑项目(2018B030324003);国家自然科学基金项目(U2106209);中科院基础研究青年团队项目(YSBR-037) |
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| 摘 要： | 利用文献收集和数据整合的方法，对广东省不同红树林群落和地区的碳储量及碳埋藏速率进行了系统梳理。研究发现，广东省红树林的面积为9 106.21 hm2，土壤碳储量为1 542.02 GgC，土壤碳密度为0.23 GgC/hm2。广东省内红海榄(Rhizophora stylosa)和木榄(Bruguiera gymnorrhiza)群落的土壤碳密度最高，分别是0.27和0.23 GgC/hm2，而秋茄(Kandelia candel)群落土壤碳密度最低，仅为0.13 GgC/hm2。广东13个沿海地市的红树林土壤碳储量按大小顺序为湛江(894.5 GgC)>阳江(195.4 GgC)>江门(97.7 GgC)>珠海(91.0GgC)>茂名(59.6 GgC)>汕头(51.4 GgC)>中山(49.2 GgC)>惠州(36.1 GgC)>广州(35.1 GgC)>深圳(18.3 GgC)>汕尾(10.8 GgC)>东莞(2.8 GgC)&...
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| 关 键 词： | 红树林 蓝碳 碳密度 碳储量 广东省 |
| 收稿时间： | 2022-10-08 |
Soil Carbon Stock and Potential Carbon Storage in the Mangrove Forests of Guangdong |
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| Guoming Qin,Jingfan Zhang,Jinge Zhou,Zhe Lu,Faming Wang.Soil Carbon Stock and Potential Carbon Storage in the Mangrove Forests of Guangdong[J].Tropical Geography,2023,43(1):23-30. |
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| Authors: | Guoming Qin Jingfan Zhang Jinge Zhou Zhe Lu Faming Wang |
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| Institution: | 1.Xiaoliang Research Station for Tropical Coastal Ecosystems, and the CAS engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;2.South China National Botanical Garden, Guangzhou 510650, China;3.University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Mangroves occur in coastal intertidal zones and play an important role in terrestrial and marine carbon cycles. Accurate estimations of mangrove carbon stocks and sequestration potential can help quantify the contribution of mangroves to addressing climate change and achieving carbon neutrality goals. The carbon stocks and burial rates of different mangrove communities and regions in Guangdong Province were studied through literature collection and data integration. The soil carbon densities of the Rhizophora stylosa and Bruguiera gymnorhiza communities were 0.27 and 0.23 Gg C/hm2, respectively, while the soil carbon density of the Kandelia obovata community was the lowest at only 0.13 Gg C/hm2. The area of mangroves in Guangdong Province is 9,106.2 hm2, the total carbon stock is 1,542.02 Gg C, and the soil carbon density is 0.23 Gg C/hm2. The total carbon reserves of mangroves in thirteen regions are in the following order: Zhanjiang (894.5 Gg C) > Yangjiang (195.4 Gg C) > Jiangmen (97.7 Gg C) > Zhuhai (91.0 Gg C) > Maoming (59.6 Gg C) > Shantou (51.4 Gg C) > Zhongshan (49.2 Gg C) > Huizhou (36.1 Gg C) > Guangzhou (35.1 Gg C) > Shenzhen (18.3 Gg C) > Shanwei (10.8 Gg C) > Dongguan (2.83 Gg C) > Chaozhou (0.11 Gg C). Using the 210Pb method, the sediment accretion rate was found to be 13.47 mm/a. Qi'ao Island had the highest sediment compaction rate of 31.5 mm/a, followed by Zhenhai Bay, with 16.5 mm/a, Shenzhen Futian, with 15.9 mm/a, and Leizhou Bay, with the lowest sediment compaction rate of 7.3 mm/a. The carbon sequestration capacity of Guangdong province is approximately 2.96 Gg C/a, with the Leizhou Peninsula having the highest (6.05 Gg C/a) and Futian, Shenzhen having the lowest (0.66 Gg C/a) capacities. The carbon storage of mangroves in Guangdong Province was 1,542.02 Gg C, which was higher than that in other regions. The carbon sequestration capacity of the mangroves was relatively strong. Therefore, the protection and restoration of local mangroves may substantially contribute to the mitigation of climate change while providing additional benefits. This assessment, on a provincial scale, provides insights into blue carbon sequestration capacity, thus contributing to the synchronous progression of blue carbon management. |
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| Keywords: | mangrove blue carbon carbon density carbon stock Guangdong Province |
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