| 外来职业农民和本地农户种植多样性差异及影响因素研究 |
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| 引用本文： | 闫梦露,钟太洋.外来职业农民和本地农户种植多样性差异及影响因素研究[J].资源科学,2018,40(9):1752-1761. |
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| 作者姓名： | 闫梦露 钟太洋 |
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| 作者单位： | 南京大学地理与海洋科学学院,南京 210023 |
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| 基金项目： | 国家自然科学基金项目(41771189) |
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| 摘 要： | 种植多样化是传统农户应对农业风险冲击的有效策略,而外来职业农民驱动下的农业转型发展可能会与本地农户种植多样性存在差异。为分析不同类型农户种植多样性差异及影响因素,本文利用2015年在江苏省南京市通过农户问卷调查获得的393份有效样本数据,以农户种植作物种类数为指标测度种植多样性,采用Poisson（泊松）回归模型进行实证检验。结果表明：① 不同类型农户种植多样性存在显著差异,在保持其他变量不变的情况下,外来职业农民的种植多样性比本地农户少17%;② 种植面积是影响种植多样性的重要因素,种植面积每增加1hm2,种植多样性降低2.7%左右;③ 其它影响农户种植多样性的因素还包括农业生产决策者的年龄、农户地块总数和农户住地到主城区的距离：在保持其它变量不变的情况下,农业生产决策者的年龄每提高1岁,种植多样性提高0.9%左右;农户地块总数每增加1块,种植多样性提高4.6%左右;农户住地到主城区的距离每增加1km,种植多样性提高0.8%左右。
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| 关 键 词： | 土地经济学 外来职业农民 Poisson回归 种植多样性 |
| 收稿时间： | 2017-10-08 |
| 修稿时间： | 2018-08-22 |
The difference of crop diversity between migrant professional farmers and local peasant households and its influencing factors |
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| Menglu YAN,Taiyang ZHONG.The difference of crop diversity between migrant professional farmers and local peasant households and its influencing factors[J].Resources Science,2018,40(9):1752-1761. |
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| Authors: | Menglu YAN Taiyang ZHONG |
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| Institution: | School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China |
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| Abstract: | Crop diversity is an effective strategy for traditional small-peasant to cope with the impact of agricultural risks. The transition of agriculture driven by migrant professional farmers may be different from local peasant households’crop diversity. The purpose of this study aims to investigate the difference of crop diversity between migrant professional farmers and local peasant households and its influencing factors at farm household level. Based on survey data from 393 farmers’crop diversity in Nanjing City, Jiangsu Province in 2015, we established a Poisson regression model. Different from the previous studies, the current investigation was carried out at farmer level, the farmer is not only the household head but also the family member in charge of agricultural production. Furthermore, the crop diversity was valued more directly by crop kinds instead of diversity index. The result shows that several factors affected farm households’ crop diversity. First of all, compared with the local peasant households, the crop diversity of migrant professional farmers is 17% less than that of local peasant households. Moreover, crop acreage has a significant effect on crop diversity, crop diversity decreases approximately 2.7% with an increase of 1 hm2 of crop acreage. Besides, the age of farmers who are in charge of agricultural production, the agriculture land plot quantities of farmers who own, and the distance from peasants residence to the main city zone also have significant effects on crop diversity. Holding all other variables constant, the expected number of crop diversity increases by about 0.9% with an increase of the age of farmers, the expected number of crop diversity increases approximately 4.6% with an increase of 1 plot of agriculture land; the expected number of crop diversity increases approximately 0.8% with an increase of 1 km from peasants residence to the main city zone. |
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| Keywords: | land economics migrant professional farmers Poisson regression model crop diversity |
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