Biogeochemistry-ecosystem-social interactions on the Chinese continental margins

IF 2.6 3区地球科学 Q2 OCEANOGRAPHY

Oceanologia Pub Date : 2023-01-01 DOI:10.1016/j.oceano.2022.12.001

Su Mei Liu , Wen Liang , Xinyu Guo , Nian Wu , Wuchang Zhang , Xiujuan Shan , Hua-De Zhao , Juying Wang , Jin Huang

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引用次数: 0

Abstract

Chinese continental margins are experiencing remarkable environmental changes driven by anthropogenic activities and climate change. As an important habitat and sea-based fish farming resource in China, the Bohai was selected as a case study to understand how ecosystems and social interactions are influenced by multi-stressors. The Bohai ecosystem has been considerably modified. The Bohai coastline has been significantly changed (e.g., total sea area decreased and morphology changed) by sea reclamation and riverine sediment transport related to agriculture and erosion. Therefore, the strict reclamation policy and “Grain-for-Green” program have been issued to protect the coastline. Nutrient concentrations and composition have been changed by fertilizer application, wastewater discharge, and variations in seasonal patterns of riverine nutrient fluxes. Hence, pollution control and prevention are necessary. More seriously, fishing resources have been altered, as a result of environmental changes and overfishing. Therefore, a summer fishing ban and stock enhancement should be vital besides environmental improvement. This study can help to predict and mitigate impacts on global continental margins that are experiencing similar environmental stress.

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中国大陆边缘的生物地球化学-生态系统-社会相互作用

在人为活动和气候变化的驱动下，中国大陆边缘正经历着显著的环境变化。作为中国重要的生境和海基养鱼资源，本文以渤海为例，研究了生态系统和社会互动如何受到多重压力因素的影响。渤海生态系统发生了较大变化。渤海岸线因填海造地和与农业和侵蚀有关的河流输沙而发生了明显的变化(海域总面积减少、地貌变化)。因此，出台了严格的填海政策和“退耕还林”计划来保护海岸线。肥料施用、废水排放和河流养分流动的季节性变化改变了养分浓度和组成。因此，控制和预防污染是必要的。更严重的是，由于环境变化和过度捕捞，渔业资源已经改变。因此，除了改善环境外，夏季禁渔和增加种群也是至关重要的。这项研究可以帮助预测和减轻对正在经历类似环境压力的全球大陆边缘的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Oceanologia 地学-海洋学

CiteScore

5.30

自引率

6.90%

发文量

审稿时长

146 days

期刊介绍： Oceanologia is an international journal that publishes results of original research in the field of marine sciences with emphasis on the European seas.