Tracing offshore marine ecosystem asset changes based on physical accounting: A case of Xiamen Sea Area

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management Pub Date : 2024-10-24 DOI:10.1016/j.ocecoaman.2024.107420

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引用次数: 0

Abstract

Assessing temporal and spatial changes in marine ecosystem assets is critical for the capitalized management of natural resources and their contribution to human well-being. However, quantifying these changes using different inclusion methods in the System National Account is a challenge. Ecosystem accounting has become a popular topic in recent years, particularly after the System of Environmental and Economic Accounting-Ecosystem Accounting was published in 2021. However, few practical studies have been conducted on offshore marine ecosystem accounting, including marine ecosystem assets and services. This study provides a systematic framework to prioritize the assessment of offshore marine ecosystem assets (extent and condition) in physical terms, including the determined indicators of physical accounts and the presentation of accounting results. We then used this framework to assess marine ecosystem assets in the Xiamen Sea Area selected from 2006 to 2020. The results show that: (a) The extent of the marine ecosystem in Xiamen decreased by 8.34% from 349.64 km² to 320.49 km², mainly caused by converting intertidal ecosystem into the land due to the demand for urban and industrial use sea. (b) The area of intertidal vegetation habitats (mangroves and salt marshes) increased from 23.22 hm² to 132.2 hm², with an increase of 4.7 times. The results also show that the restoration of the marine ecology in Xiamen has achieved remarkable results. (c) The marine ecosystem condition comprehensive index in Xiamen increased by 3.13% from 0.32 to 0.33. This shows that the marine ecosystem conditions in Xiamen remain well and have even slightly improved under the pressure of a rapidly developing economy and increasing population. This study provides practical technical methods for assessing offshore marine ecosystem in physical term to support integrated coastal management in coastal cities, and is important for assessing marine ecosystem services in the future.

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基于物理核算的近海海洋生态系统资产变化追踪：厦门海域案例

评估海洋生态系统资产的时空变化对于自然资源的资本化管理及其对人类福祉的贡献至关重要。然而，在国民账户体系中使用不同的纳入方法量化这些变化是一项挑战。近年来，生态系统核算已成为一个热门话题，尤其是在 2021 年发布《环境和经济核算体系--生态系统核算》之后。然而，有关近海海洋生态系统核算（包括海洋生态系统资产和服务）的实际研究却很少。本研究提供了一个系统框架，从物理角度对近海海洋生态系统资产（范围和状况）进行优先评估，包括物理账户的确定指标和核算结果的呈现方式。然后，我们利用该框架评估了 2006 至 2020 年厦门海域的海洋生态系统资产。结果显示(a) 厦门海洋生态系统面积从 349.64 平方公里减少到 320.49 平方公里，减少了 8.34%，主要原因是城市和工业用海需求将潮间带生态系统转化为陆地。(b) 潮间带植被生境（红树林和盐沼）面积从 23.22 hm2 增加到 132.2 hm2，增加了 4.7 倍。结果也表明，厦门海洋生态修复取得了显著成效。(c) 厦门市海洋生态环境状况综合指数从 0.32 上升到 0.33，上升了 3.13%。这表明，在经济快速发展、人口不断增加的压力下，厦门海洋生态环境状况依然良好，甚至略有改善。该研究为近海海洋生态系统的物理评估提供了实用的技术方法，为沿海城市的海岸综合管理提供了支持，对未来海洋生态系统服务评估具有重要意义。

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

Ocean & Coastal Management 环境科学-海洋学

CiteScore

8.50

自引率

15.20%

发文量

321

审稿时长

60 days

期刊介绍： Ocean & Coastal Management is the leading international journal dedicated to the study of all aspects of ocean and coastal management from the global to local levels. We publish rigorously peer-reviewed manuscripts from all disciplines, and inter-/trans-disciplinary and co-designed research, but all submissions must make clear the relevance to management and/or governance issues relevant to the sustainable development and conservation of oceans and coasts. Comparative studies (from sub-national to trans-national cases, and other management / policy arenas) are encouraged, as are studies that critically assess current management practices and governance approaches. Submissions involving robust analysis, development of theory, and improvement of management practice are especially welcome.