成果归属作者：

白羽萍 ; 王洁 ; 胡业翠

成果归属机构：

土地科学技术学院

作者：

Yiwei Wang; Yuping Bai* ; Jie Wang ; Xiangzheng Deng; Yecui Hu ; Xin Chen

单位：

School of Land Science and Technology, China University of Geosciences, Beijing 100083, China;Key Lab of Land Consolidation and rehabilitation, Ministry of Natural Resources of the People’s Republic of China, Beijing 100035, China;Beijing Technology and Business University, Beijing 100048, China;Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China;School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100190, China

关键词：

Cultivated land use;Greenhouse gas emissions;Diet shifts;Nutrition quality;Affordability

英文关键词：

Cultivated land use;Greenhouse gas emissions;Diet shifts;Nutrition quality;Affordability

摘要：

China’s rapid economic development has profoundly transformed residents’ dietary patterns, which has not only intensified pressure on cultivated land but also posed severe challenges to climate change response. Establishing a sustainable dietary system helps ensure China’s food and nutrition security. In this study, we designed nine types of dietary shift patterns and developed a multi-regional input-output model at high sector resolution to assess the changes of cultivated land use and greenhouse gas (GHG) emissions. Moreover, we explored the linkages among nutritional quality, food affordability, cultivated land use, and GHG emissions across different provinces and proposed differentiated strategies to facilitate dietary transition. We found that adopting alternative diets increased the intake of beneficial nutrients but also inevitably increased the intake of restricted-intake nutrients. Environmental impact analysis reveals that the consumption of grain and meat contribute to 70 % of cultivated land occupation and 90 % of GHG emissions. Except for the High-Meat scenario, the reduction in meat consumption has positive effects in all other dietary scenarios, leading to 6–35 % decrease in embodied cultivated land and 11–43 % reduction in embodied GHG emissions. Moreover, the affordability assessment indicates that western regions of China face greater affordability challenges in diet transition. Our findings highlight the complex trade-offs and synergies among nutritional quality, food affordability, cultivated land use, and GHG emissions through diet shifts. Developing differentiated dietary transition strategies is crucial for achieving multiple co-benefits.

语种：

英文

DOI：

10.1016/j.landusepol.2026.107927

来源：

Land Use Policy,2026(164):.

出版日期：

2026-05-08

提交日期：

2026-01-29

引用参考：

Yiwei Wang,Yuping Bai*,Jie Wang,Xiangzheng Deng,Yecui Hu,Xin Chen. Rethinking workable solutions for saving cultivated land use and enhancing climate adaptation through diet shifts[J]. Land Use Policy,2026(164):.