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Quantifying reasonable straw removal rate to achieve food security, bioenergy transition and climate mitigation in China

文献类型： 外文期刊

作者： Shi, Wenjun 1 ; Tan, Tiansu 3 ; Fang, Yanru 4 ; Liu, Xiaotong 5 ; Chang, Yuyang 6 ; Liu, Zheng 7 ; Siddique, Imran Ahammad 8 ; Ameen, Asif 9 ; Xu, Yi 2 ;

作者机构： 1.Bank Beijing, Bank Beijing Postdoctoral Res Stn, Beijing 100033, Peoples R China

2.China Agr Univ, Coll Agron & Biotechnol, Beijing 100193, Peoples R China

3.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Peoples R China

4.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China

5.Inst Resources & Environm, Int Ctr Bamboo & Rattan, Key Lab Natl Forestry & Grassland Adm, Beijing 100102, Peoples R China

6.Swiss Fed Inst Technol, Dept Environm Syst Sci, CH-8092 Zurich, Switzerland

7.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Inst Crop Sci, Key Lab Crop Physiol & Ecol, Beijing 100081, Peoples R China

8.Aarhus Univ, Dept Agroecol, DK-8830 Tjele, Denmark

9.Agron Res Inst, Plant Physiol Sect, AARI, Faisalabad 38850, Pakistan

关键词： Crop straw; Grain yield; Straw utilization transformation; Energy substitution; Greenhouse gas emissions

期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：10.9； 五年影响因子：12.7 ）

ISSN： 0921-3449

年卷期： 2025 年 215 卷

页码：

收录情况： SCI

摘要： Effective management of crop straw is crucial for sustainable food production, renewable energy transition and climate change mitigation. However, accurately estimating reasonable removal rates to enhance grain yield and transition to bioenergy remains challenging. Through nationwide systematic surveys and meta-analysis, reasonable straw removal rates of 45 % for rice, 19 % for wheat, and 42 % for maize were identified in China. The potential bioenergy production derived from these reasonably removed straws ranges from 23 to 100 Mtce in 2022. The combined adjustment of straw utilization and fossil fuel offset through bioenergy leads to a reduction in greenhouse gas (GHG) emissions by 218 to 309 Mt in 2022. Particularly, maize straw emerges as a preferred feedstock for bioenergy and climate mitigation due to its highest bioenergy production and GHG emissions reduction potential. These findings provide critical insights into optimizing agricultural residue management in China, guiding efforts toward food security and carbon neutrality goals.

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