首页|红树林生态重建效果预测研究新模式

红树林生态重建效果预测研究新模式

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红树林是生态文明建设的组成部分,对实现碳中和目标意义重大,近年来实施了大量的保护和修复工程.然而,目前缺少一种预测方法来比选有效的保护措施,以指导红树林的生态重建工作.因此,提出了一种"数值模拟模型+分类模型"的研究新模式.在模式应用中,模拟了广东省柘林湾一年的水沙动力环境.通过考虑淹没时间、相对峰值底床切应力和底床高程变化,描述了红树定植过程中所受到的胁迫,对 4 种条件下笠港潮汐汊道内侧滩涂红树林的生态重建效果做出了预测.结果表明,恢复汊道水深会轻微改变区域的水动力和泥沙冲淤环境,导致生态重建成功率降低了 3.12%;提高区域底床高程会显著减小流速并加剧外侧冲刷,提高 0.5m和 1.0m的高程分别使生态重建成功率提升了 16.43%和 32.75%.
A novel pattern for predicting the effects of mangrove ecological reconstruction
Mangroves are an integral part of ecological civilization and hold significant importance in achieving carbon neutrality goals.In recent years,numerous conservation and restoration efforts have been undertaken to protect mangrove ecosystems.However,there is currently a lack of predictive methods for comparing and selecting effective conservation measures to guide mangrove ecological reconstruction.Therefore,a novel research approach combining"numerical simulation models"with"classification models"is proposed.In the application of this approach,the hydrodynamic and sedimentary environment of the Zhelin Bay in Guangdong Province was simulated for one year.By considering factors such as flooding time,relative peak bed shear stress,and bed level change,the stressors faced during the process of mangrove colonization were described.And ecological reconstruction effects of mangroves distributed on the inner tidal flats of the Ligang tidal inlet were predicted under four different conditions.The results indicate that restoring the inlet depth slightly alters the regional hydrodynamics and sediment environment,leading to a decrease of 3.12%in the success rate of ecological reconstruction.Elevating the bed elevation significantly reduces flow velocity and intensifies outer-side scouring.Raising the elevation by 0.5 meters and 1.0 meter increases the success rate of ecological reconstruction by 16.43%and 32.75%,respectively.

mangrovesecological restorationnumerical simulationlogistic regressionZhelin Bay

吴鸿博、罗锋、陈治澎、朱飞、曾靖伟、张弛、李瑞杰

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河海大学港口海岸与近海工程学院,江苏南京,210098

南通河海大学海洋与近海工程研究院,江苏南通,226004

河海大学海岸灾害及防护教育部重点实验室,江苏 南京,210098

红树林 生态修复 数值模拟 逻辑回归 柘林湾

国家重点研发计划项目江苏省海洋科技创新项目南通社会民生科技计划项目南通社会民生科技计划项目南通社会民生科技计划项目

2022YFC3106100JSZRHYKJ202105MS12022009MS22022082MS22022083

2024

热带海洋学报
中国科学院南海海洋研究所

热带海洋学报

CSTPCD北大核心
影响因子:0.513
ISSN:1009-5470
年,卷(期):2024.43(4)
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