资源科学 ›› 2021, Vol. 43 ›› Issue (10): 2130-2145.doi: 10.18402/resci.2021.10.16

• 碳排放 • 上一篇    

水产品贸易对渔业碳排放强度的影响——基于中介模型与门槛模型的检验

李晨1,2(), 汪琳琳1, 邵桂兰1   

  1. 1.中国海洋大学经济学院,青岛 266100
    2.中国海洋大学海洋发展研究院,青岛 266100
  • 收稿日期:2021-01-14 修回日期:2021-04-16 出版日期:2021-10-25 发布日期:2021-12-25
  • 作者简介:李晨,女,山东青岛人,教授,研究方向为渔业与水产品贸易。E-mail: phdlichen@126.com
  • 基金资助:
    青岛市社会科学规划研究项目(QDSKL2101016);国家社会科学基金重大项目(21&ZD100)

The impact of aquatic product trade on the intensity of fishery carbon emissions: Based on intermediary and threshold models

LI Chen1,2(), WANG Linlin1, SHAO Guilan1   

  1. 1. School of Economics, Ocean University of China, Qingdao 266100, China
    2. Marine Development Studies Institute, Ocean University of China, Qingdao 266100, China
  • Received:2021-01-14 Revised:2021-04-16 Online:2021-10-25 Published:2021-12-25

摘要:

识别水产品贸易影响渔业碳排放强度的机制与效果,是促进渔业低碳发展的重要路径。本文从规模效应、技术效应和结构效应3个维度探讨水产品贸易影响渔业碳排放强度的机制与效果以及渔业人均收入的门槛效应。结果显示:①水产品贸易对渔业碳排放强度具有较强的直接促进效应,总体上提升了渔业碳排放强度。②在收入门槛约束下,水产品贸易与渔业碳排放强度间呈倒“U”型关系,收入处于高门槛区间时,贸易对碳排放强度具有抑制作用。③渔业规模扩张、产业结构优化升级、技术提高及要素禀赋都能有效降低渔业碳排放强度;环境规制对渔业碳排放强度影响的有效性存在阈值,过强的环境规制会出现“越规制,越污染”现象。因此,应加快转变水产品贸易增长模式,优化渔业产业结构,推动开放式渔业技术创新;并在充分考虑地区差异的基础上合理掌控渔业环境规制力度,承担共同但有区别的渔业减排责任。

关键词: 水产品贸易, 渔业碳排放强度, 影响机制, 中介效应, 门槛效应, 人均收入

Abstract:

Identifying the impact of aquatic product trade on fishery carbon emission intensity is an important way to promote low carbon development of fishery. This study examined the impact path and income threshold effect of aquatic product trade on fishery carbon emission intensity from the three dimensions of scale effect, technology effect, and structural effect. The results show that: (1) Aquatic product trade has a strong direct promoting effect on fishery carbon emission intensity. Although it can indirectly inhibit fishery carbon emission intensity through the path of scale economy, energy-saving technology innovation, and industrial transformation and upgrading, it still increases fishery carbon emission intensity on the whole. (2) Under the constraint of income threshold, there is an inverted U-shaped relationship between aquatic product trade and fishery carbon emission intensity. Trade has a negative effect on carbon emission intensity when income is in the high zone. (3) Fishery scale expansion, industrial structure optimization and upgrading, technology improvement, and factor endowment can effectively reduce fishery carbon emission intensity. There is a threshold for the effectiveness of environmental regulation on carbon emission intensity of fisheries, and excessive environmental regulation will lead to the phenomenon of “more regulation, more pollution”. Therefore, it is necessary to accelerate the transformation of aquatic product trade growth model, optimize the fishery industrial structure, and promote the innovation of open fishery technology. On the basis of fully considering regional differences, we should reasonably control fishery environmental regulation and assume common but differentiated responsibilities for fishery emission reduction.

Key words: aquatic product trade, fishery carbon emission intensity, influence mechanism, mediating effect, threshold effect, per capita income