Improving Northeast China's soybean and maize planting structure through subsidy optimization considering climate change and comparative economic benefit
文献类型：期刊论文
| 作者 | Huang, Yihang2; Liu, Zhengjia2 |
| 刊名 | LAND USE POLICY
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 146页码:107319 |
| 关键词 | Climate change Maize planting northward expansion Soybean planting area shrinkage Comparative economic benefit Northeast China |
| DOI | 10.1016/j.landusepol.2024.107319 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The planting structure of Northeast China (NEC) is greatly responsible for China's food security and selfsufficiency. Climate change promoted the northward expansion of the suitable planting area for maize in NEC, and its higher comparative economic benefit largely helped it occupy the soybean planting space. Yet, knowledge on how climatic suitability and comparative economic benefit affected the northward expansion of maize planting area is limited. To bridge this gap, this study quantified the climatic suitability of maize and soybean from 1981 to 2020 using the fuzzy mathematical method. Combined with yield, crop distribution and social economic data in 2000, 2010 and 2020, this study further calculated the comparative economic benefit between the two crops. Furthermore, a crop planting decision simulation model was developed to clarify the impact of climatic suitability and comparative economic benefit on the planting area of soybean and maize. Results showed that from 2000 to 2010, the maize planting area increased dramatically. This was due to the continuous northward expansion of the most suitable region (S1) for maize from 47.63 degrees N to 48.43 degrees N before 2010, along with the fact that 65% of the total area was more profitable to plant maize. From 2010 to 2020, the maize planting area partially retreated, mainly due to the shrinking trend of the northern boundary of S1 for maize and the implementation of soybean producer subsidy. The improvement of maize climatic suitability played a fundamental role in the northward expansion of its planting area. On this basis, the comparative economic benefit was critical for planting proportion adjustments. The current soybean producer subsidy largely reduced the profit gap between the two crops, but it was still insufficient in nearly one-third of the total area. This study suggested to increase amount of soybean subsidies in the identified soybean-maize imbalanced regions. Specifically, the average recommended increase amounts ranged from 756 to 2052 CNY/ha depending on the regions. These findings could provide valuable references for understanding the motivation of crop planting decisions and optimizing the corresponding subsidy policies. |
| WOS关键词 | GRAIN PRODUCTION ; CROPPING SYSTEM ; AGRICULTURE ; TRANSITION ; RESOURCES ; IMPACTS ; POLICY |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001301576000001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/207956]  |
| 专题 | 区域可持续发展分析与模拟院重点实验室_外文论文 |
| 通讯作者 | Liu, Zhengjia |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Reg Sustainable Dev Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Yihang,Liu, Zhengjia. Improving Northeast China's soybean and maize planting structure through subsidy optimization considering climate change and comparative economic benefit[J]. LAND USE POLICY,2024,146:107319. |
| APA | Huang, Yihang,&Liu, Zhengjia.(2024).Improving Northeast China's soybean and maize planting structure through subsidy optimization considering climate change and comparative economic benefit.LAND USE POLICY,146,107319. |
| MLA | Huang, Yihang,et al."Improving Northeast China's soybean and maize planting structure through subsidy optimization considering climate change and comparative economic benefit".LAND USE POLICY 146(2024):107319. |
入库方式： OAI收割
来源：地理科学与资源研究所
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