Evaluation of mangrove-aquaculture integrated system in wetland eco-restoration in Shenzhen
FENG Jian-xiang1,2, ZHU Xiao-shan1, NING Cun-xin3, LIN Qi-hui4, WU Hao4, LI Yin-xin5, LIN Guang-hui1,6
1. Division of Ocean Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China;
2. School of Life Sciences, Sun Yat-Sen University, Guangzhou, 517055;
3. School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China;
4. Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen 518016, China;
5. Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;
6. Department of Earth System Science, Tsinghua University, Beijing 100084, China
Three wetland sites,restored for 6,10 and 12 years respectively,at Waterlands Resort in Shenzhen were designated for the evaluation of wetland eco-restoration.A comprehensive index system was built for quantitative assessments on the efficiency of restoration,including environmental factors,mangrove community structure and physiological status of mangrove plants.Concentrations of macronutrients and heavy metals in both water and sediment of restored areas had been effectively decreased,though still found to be under the acceptable values suggested by the aquaculture criteria.Although the community structure and physiological status of mangrove plant had been significantly improved with the increasing restoration duration,great discrepancies remained between the restored and the natural mangroves.The ecological restoration score for three sites are 1.61,1.69 and 2.07,respectively.Their integrated restoration levels were all ranked as "Medium",indicted that the full restoration for the retrogressive wetland ecosystem will require decades or longer time for development.
冯建祥, 朱小山, 宁存鑫, 林起辉, 吴浩, 李银心, 林光辉. 红树林种植-养殖耦合湿地生态修复效果评价[J]. 中国环境科学, 2017, 37(7): 2662-2673.
FENG Jian-xiang, ZHU Xiao-shan, NING Cun-xin, LIN Qi-hui, WU Hao, LI Yin-xin, LIN Guang-hui. Evaluation of mangrove-aquaculture integrated system in wetland eco-restoration in Shenzhen. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(7): 2662-2673.
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