| 浙江省农地规模化的空间潜力与减氮增效研究 |
| |
| 作者姓名： | 黄璐瑶 段佳堃 邬奇峰 虞轶俊 徐建明 谷保静 |
| |
| 作者单位： | 浙江大学环境与资源学院, 杭州 310058;浙江大学环境与资源学院, 杭州 310058;浙江大学政策仿真实验室, 杭州 310058;浙江省耕地质量与肥料管理总站, 杭州 310016;杭州市临安区农林技术推广中心, 杭州 311300;浙江大学环境与资源学院, 杭州 310058;浙江大学政策仿真实验室, 杭州 310058;浙江省农业资源与环境重点实验室, 杭州 310058 |
| |
| 基金项目： | 国家自然科学基金项目（42261144001，42061124001） |
| |
| 摘 要： | 我国农业以小农经营为主，为解决浙江省细碎化经营带来的收益和资源利用效率低、面源污染严重等问题，本研究通过分析浙江耕地分布格局，量化浙江农地规模化潜力和空间优化路径，结合农田氮平衡和成本收益分析，评估农地规模化对浙江农业生产和环境效应的影响。结果表明：浙江耕地平均田块面积为0.4 hm2，面积低于0.6 hm2的耕地占70%。通过土地整理，73%的耕地连片面积在16 hm2以上。耕地连片规模化经营可以使氮肥投入减少53%，促进氮素利用效率从38%增加至56%。农业劳动力需求从每公顷4人减少至1人，农业投入成本降低77%，劳动力农业年均收入可提高9 457元。浙江省推动实施农地规模化具备良好的资源条件，在全省范围内推行有助于发挥农业生产提质增效和环境资源保护作用。政府应当加强政策引导、加大财政支持、推动农业转型，以农地规模化提升浙江农业可持续发展潜力。
|
| 关 键 词： | 农地规模化 氮素利用效率 农业收益 浙江 可持续发展 |
| 收稿时间： | 2022/12/12 0:00:00 |
Potential of large-scale farming and its effect on nitrogen reduction and yield benefit in Zhejiang |
| |
| Authors: | HUANG Luyao DUAN Jiakun WU Qifeng YU Yijun XU Jianming GU Baojing |
| |
| Institution: | College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;Policy Simulation Laboratory, Zhejiang University, Hangzhou 310058, China;Arable Soil Quality and Fertilizer Administration Station of Zhejiang Province, Hangzhou 310016, China;Lin''an Agricultural Technology Promotion Center of Hangzhou, Hanzhou 311300, China; College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;Policy Simulation Laboratory, Zhejiang University, Hangzhou 310058, China;Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China |
| |
| Abstract: | Chinese agriculture is dominated by smallholder farms. To solve the problems of low agricultural profitability, low utilization efficiency of agricultural resources, and serious non-point source pollution in Zhejiang Province, this study analyzed the distribution of Zhejiang farmland, quantified the potential and spatial optimization path of large-scale farming, and combined farmland nitrogen balance and cost -benefit analysis to assess the impact of large-scale farming on agricultural production and environmental effects. The results showed that the average size of cropland in Zhejiang is 0.4 hm2, and 70% of cropland is <0.6 hm2. Through land consolidation, 73% of the arable land reaches a contiguous area >16 hm2. Large-scale farming can reduce the nitrogen input by 53% and increase the nitrogen utilization efficiency from 38% to 56%. Agricultural labor demand can be reduced from 4 to 1 person per hectare, agricultural costs can be reduced by 77%, and the average agricultural labor productivity can be increased by approximately 9 457 yuan. Zhejiang has ideal resource conditions for the promotion of large-scale farming, and its implementation in the entire province can help improve the quality and efficiency of agricultural production and protect environmental resources. The government should strengthen policy guidance, increase financial support, and promote agricultural transformation, so that large-scale farming can improve the potential for sustainable agricultural development. |
| |
| Keywords: | |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
