Effect of soybean inclusion in cropping systems on productivity, profitability, and carbon footprints: A case study from the Huang-Huai-Hai Plain

文献类型： 外文期刊

第一作者： Yang, Lei

作者： Yang, Lei;Jin, Wenjun;Chen, Xiaofei;Kong, Lingcong;Huang, Zhiping;Du, Xiangbei;Song, Wenwen;Yang, Yadong;Zhou, Jie;Liu, Ruixian

作者机构：

关键词： Cropping system; Soybean inclusion; Energy budgeting; Carbon footprint; Sustainability

期刊名称：ENERGY （ 影响因子：9.4； 五年影响因子：8.8 ）

ISSN： 0360-5442

年卷期： 2025 年 316 卷

页码：

收录情况： SCI

摘要： The intensive wheat-maize (W-M) rotation in the Huang-Huai-Hai Plain faces ecological challenges. Introducing legumes into cropping systems is a promising strategy for sustainability, but its effect on productivity and profitability remains uncertain. A two-year experiment examined the effects of three double-cropping systems (Wheat-Soybean, W-S; Wheat with an intercrop of Maize and Soybean, W-M/S; and W-M) on productivity, energy balance, carbon footprint (CF), economic returns, and sustainability. Results showed that, compared to WM, the pre-crop effect of soybean in W-S and W-M/S increased subsequent wheat yield by 8.8 % and 3.6%, respectively; W-M/S improved annual yields of grain, maize equivalent, and energy by 3.6%, 17.5%, and 6.7%, whereas W-S decreased them by 28.6%, 5.3%, and 25.2%; due to lower inputs, W-S reduced CFs by 19.8%- 42.8%; with higher yields and soil organic carbon storage, W-M/S increased net energy, return, and carbon by 5.1%, 9.4%, and 4.3%, while reducing CFs by 19.3%-31.3%, resulting in a 43.2% rise in the sustainability index. In summary, introducing soybeans into cropping systems-either as an intercrop or in rotation-can maintain soil organic carbon and reduce CFs. Moreover, W-M/S can enhance productivity and profitability, making it a more sustainable, efficient, and cleaner system for the Huang-Huai-Hai Plain.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序