| Accumulation and Cycle of Heavy Metals in Sonneratia apetala and S. caseolaris Mangrove Community at Futian of Shenzhen, China |
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| 作者姓名： | 王伯荪 昝启杰 张炜银 王勇军 |
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| 作者单位： | School of Life Sciences，Zhongshan University，Guangzhou 510275，School of Life Sciences，Zhongshan University，Institute of Forest Ecology，Environment and Protection，Chinese Academy of Forestry，Beijing 100091，Neilingding-Futian National Nature Reserve of Guangdong，Shenzhen 518040 Guangzhou 510275，Neilingding-Futian National Nature Reserve of Guangdong，Shenzhen 518040 |
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| 基金项目： | 国家自然科学基金，广东省深圳市科技部资助项目 |
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| 摘 要： | Wetland ecosystem in the Shenzhen Bay is one of the internationally important ecosystems in South China Region. Its core, with the Mai Po Mangrove Nature Reserve in Hong Kong on the one side and the Futian Mangrove Nature Reserve in Shenzhen on the other side, provides habitats for many rare and endangered wild birds, especially for migratory birds1, 2]. With the economic development in Hong Kong and Shenzhen, a large mount of silt and untreated waste water are poured into the Shenzhe…
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Accumulation and Cycle of Heavy Metals in Sonneratia apetala and S. caseolaris Mangrove Community at Futian of Shenzhen, China |
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| WANG Bosun,Zan Qijie,Zhang Weiyin,Wang Yongjun.Accumulation and Cycle of Heavy Metals in Sonneratia apetala and S. caseolaris Mangrove Community at Futian of Shenzhen, China[J].Marina Science Bulletin,2003,5(1). |
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| Authors: | WANG Bosun Zan Qijie Zhang Weiyin Wang Yongjun |
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| Abstract: | This paper reports the absorption, accumulation, distribution and cycle of Cu,Pb, Zn, Cr and Ni in S. apetala + S. caseolaris, mangrove community at Futian Mangrove Nature Reserve of Shenzhen. The Cu, Pb, Zn, Cr and Ni contents in forest soil increase from bottom to surface layers, and the storage of the five heavy metals in the surface layer (depth 0 ～ 30 cm) is Zn>Pb>Ni>Cr> Cu. The concentration ability is S. caseolaris>S. apetala > K. candel. The existing accumulation of Cu, Pb, Zn, Cr and Ni in the community is 23 019.63 μ g/m2, 23 429.66 μ g/m2, 117 870.42 μ g/m2, 6 835.80 μ g/m2, and 12 995.22 μ g/m2, respectively. The annual absorption is 6 592.57 μ g/m2, 2 664.80 μ g/m2,23 123.56 μ g/m2, 853.24 μ g/m2, and 1990.95 μ g/m2, respectively. The annual return is 3179.50 μ g/m2, 1300.65 μ g/m2, 7 401.31 μ g/m2, 398.99 μ g/m2, and 646.20 μ g/m2,respectively. The annual net retention accumulation of Cu, Pb, Zn, Cr and Ni in the community is 3413.07μ g/m2, 1364.15μ g/m2, 15722.25μ g/m2, 454.25μ g/m2, and 1344.75 μ g/m, respectively. The turn over periods of Cu, Pb, Zn, Cr and Ni are 8,19,15,18and 21 years, respectively. |
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| Keywords: | Sonneratia apetala S caseolaris heavy metal accumulation cycle |
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