Productivity versus environmental sustainability: A broadscale assessment of freshwater aquaculture's technical efficiency and ecological efficiency in China's inland provinces

IF 2.3 3区农林科学 Q2 FISHERIES

Journal of The World Aquaculture Society Pub Date : 2024-03-08 DOI:10.1111/jwas.13057

Zhina Wang, Xuan Chen, Longzhong Shi, Xiaoheng Zhang, Yijuan Hu

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Abstract

Promoting the productivity and environmental sustainability of aquaculture is critical in ensuring its healthy development. This study assesses freshwater aquaculture's technical efficiency and ecological efficiency in China's 19 inland provinces from 2008 to 2019, aiming to reveal its productivity and environmental sustainability status. We employ the three-stage Data Envelopment Analysis-CCR (T-DEA-CCR) and three-stage Slack-Based Measure-DEA (T-SBM-DEA) methods to explore the technical efficiency and the ecological efficiency while accounting for environmental conditions and random errors. The average technical efficiency and ecological efficiency during 2008–2019 are 0.857 and 0.702, respectively, indicating substantial scope for enhancing the productivity and environmental sustainability of China's inland aquaculture. We further investigate the regional development using the club convergence, finding that the provincial-level technical efficiencies have already achieved population convergence while the ecological efficiencies diverge into two clubs, suggesting that Chinese freshwater aquaculture's productivity and environmental sustainability have different development pathways. Acknowledging the pivotal roles of environmental protection and growers' training in aquaculture's productivity and environmental sustainability, policymakers may institute funding and recognition to foster the adoption of innovative, environmentally responsible practices by operators.

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生产力与环境可持续性：中国内陆省份淡水养殖技术效率和生态效率的广泛评估

促进水产养殖业的生产力和环境可持续性是确保其健康发展的关键。本研究评估了 2008 年至 2019 年中国 19 个内陆省份淡水养殖的技术效率和生态效率，旨在揭示其生产率和环境可持续性状况。我们采用三阶段数据包络分析-CCR（T-DEA-CCR）和三阶段基于松弛的计量-DEA（T-SBM-DEA）方法，在考虑环境条件和随机误差的情况下，探讨技术效率和生态效率。2008-2019 年间的平均技术效率和生态效率分别为 0.857 和 0.702，表明中国内陆水产养殖业的生产率和环境可持续性有很大的提升空间。我们进一步利用俱乐部收敛对区域发展进行了研究，发现省级技术效率已经实现了群体收敛，而生态效率则分为两个俱乐部，这表明中国淡水养殖业的生产率和环境可持续性具有不同的发展路径。鉴于环境保护和养殖者培训在水产养殖生产力和环境可持续性中的关键作用，政策制定者可通过资助和表彰来促进经营者采用创新的、对环境负责任的做法。

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

Journal of The World Aquaculture Society 农林科学-渔业

CiteScore

5.90

自引率

7.10%

发文量

审稿时长

2 months

期刊介绍： The Journal of the World Aquaculture Society is an international scientific journal publishing original research on the culture of aquatic plants and animals including: Nutrition; Disease; Genetics and breeding; Physiology; Environmental quality; Culture systems engineering; Husbandry practices; Economics and marketing.