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| 我国油料增产格局及贡献因素研究 |
| Pattern and contributing factors of increasing production of oilseed in China |
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| DOI： |
| 中文关键词: 油料 增产 格局 贡献因素 LMDI模型 |
| 英文关键词:oilseed production increase pattern contribution factor LMDI model |
| 基金项目:国家自然科学基金面上项目（71573019）；农业农村部财政经费项目“中国食物与营养发展战略研究”资助（JGHX202008） |
| Author Name | Affiliation | | YAN Maolin1, ZHOU Xiaoliang2, LIU Zibo3, ZHANG Yang4 | (1.State Academy of Forestry and Grassland Administration, Beijing 102600, China
2.Agricultural Information
Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China
3.Forest and Grass Investigation and
Planning Institute of the State Forestry and Grassland Administration, Beijing 100714, China
4.College of
Economics and Management, Beijing Forestry University, Beijing 100083, China) |
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| 中文摘要: |
| 2007—2021年我国油料生产实现“十四连丰”，对于保障国家粮油安全意义重大。为进一步探究油料增产格局及背后成因，推动我国油料生产提质增效，基于2007—2021年大豆、油菜籽、花生三大油料的种植面积、产量、单产等基础数据，从全国和分省两个角度，运用对数平均迪氏分解（LMDI）模型定量分析了2007—2021年我国油料增产状况及其区域差异，并对我国主要油料增产的地域格局及其贡献因素做了进一步研究。结果表明：大豆、油菜籽、花生三大油料是我国油料“十四连丰”的主导因素，三大油料对油料增产的贡献率达到96.3%；三大油料中，花生对油料增产的贡献最为显著，无论是增产幅度、增产贡献率还是年均增产量，花生均处于领先地位；单产提高对油料增产的贡献大于种植面积扩大带来的贡献；三大油料中，大豆增产主要是依靠单产水平的提高，而油菜籽和花生的增产同时依靠种植面积的扩大和单产水平的提高；2007—2021年，全国仅17个省份出现油料增产现象，且增产超过200万t和增幅达到超速增产水平的省份分别只占9.7%和35.5%。 综上，充分高效利用和开发现有土地资源、不断提升三大主要油料单产水平是破解我国油料可持续发展难题的关键。 |
| 英文摘要: |
| The 14th consecutive bumper harvest of oilseed production in China from 2007 to 2021 is of great significance to the country′s grain and oil security. In order to further explore the pattern and underlying causes of increased oilseed production, and promote the improvement of quality and efficiency in China′s oilseed production, based on basic data from 2007 to 2021 on the planting area, yield and yield per unit area of the three major oilseed crops, soybean, rapeseed and peanut, the logarithmic mean dirichlet index decomposition (LMDI) model was used to quantitatively analyze the increase of oilseed production from 2007 to 2021 and its regional differences from the national and provincial perspectives. The regional pattern and its contributing factors of the increase of main oilseed production were further studied. The results showed that soybean, rapeseed and peanut were the main factors for the 14th consecutive bumper harvest of oilseed production, and the contribution rate of the three oilseed crops to the increase of oilseed production was 96.3%, the contribution of peanut to the increase of oilseed production was the most significant, and peanut was in the leading position in terms of the increase of yield, contribution rate and annual average yield. The contribution of increasing yield per unit area to the increase of oilseed production was greater than that of expanding planting area. In the three oilseed crops, soybean production increase mainly relied on the increase of yield per unit area, while the production increase of rapeseed and peanut at the same time relied on the expansion of planting area and the increase of yield per unit area. From 2007-2021, oilseed production in only 17 provinces across the country increased, and the provinces with the production increase of more than 2 million tons, production increase reaching over increase only accounted for 9.7%, 35.5%, respectively. In summary, fully and efficiently utilizing and developing existing land resources, and continuously improving the lever of yield per unit area of the three major oilseed crops are the key to solve the problem of sustainable development of oilseed crops in China. |
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