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1995-2019年期间全球农业贸易中的水-土地-能源效率和联系

Honglin Zhong¹, Shiyu Zhang², Xinyu Zhang²

¹Institute of Blue and Green Development, Shandong University, Weihai 264209, China; Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810016, China.

The Science of the total environment

|August 16, 2024

概括

全球农业贸易往往将产品从资源效率较低的地区转移到高效的地区,增加了环境压力. 这种低效的贸易模式正在增长,尽管努力以可持续的方式满足粮食需求.

科学领域:

环境科学环境科学
农业经济学农业经济学
资源管理资源管理

背景情况:

全球人口增长和经济发展增加了对农产品的需求.
这种需求使水,土地和能源资源受到压力,贸易越来越多地满足当地需求.
农业贸易的效率和资源关系仍然不太清楚.

研究的目的:

分析全球农业贸易中水,土地和能源利用的效率.
调查该贸易中的资源足迹的转移和联系模式.
评估农业贸易对资源利用效率的环境影响.

主要方法:

使用了多区域输入-输出框架.
分析了农业用水,土地和能源利用效率,每单位经济产出.
研究了1995-2019年全球农业贸易中的资源转移和联系模式.

主要成果:

许多国际农业贸易路线是低效的,出口产品来自资源效率低至高的经济体.
这些低效的贸易路径在1995年至2019年之间呈现出日益增长的趋势.
冲突存在于水-土地-能源联系中,贸易可以减轻一种资源的压力,同时增加其他资源.

结论:

农业贸易虽然对粮食安全至关重要,但由于资源使用效率低下,并不总是有利于当地环境.
该研究强调了全球农业贸易中普遍存在的低效率和资源冲突.
这些发现支持对全球可持续农业发展和资源管理的更好理解.

关键词:

农业贸易农业贸易农业水-土地-能源足迹输入输出分析输入输出分析资源使用效率,资源使用效率.水 - 土地 - 能源纽带

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