中国农业科学 ›› 2026, Vol. 59 ›› Issue (10): 2194-2213.doi: 10.3864/j.issn.0578-1752.2026.10.010

• 土壤肥料·节水灌溉·农业生态环境 • 上一篇    下一篇

湖南省耕地禀赋对作物种植结构的影响

丁晓颖1,3(), 蔡艳蓉2, 宋敏2, 金大卫3(), 曹春霞1   

  1. 1 湖北省生物农药工程研究中心, 武汉 430064
    2 中南财经政法大学工商管理学院, 武汉 430073
    3 中南财经政法大学信息工程学院, 武汉 430073
  • 收稿日期:2025-07-01 接受日期:2025-08-11 出版日期:2026-05-16 发布日期:2026-05-20
  • 通信作者:
    金大卫,E-mail:
  • 联系方式: 丁晓颖,E-mail:dingxiaoying@zuel.edu.cn。
  • 基金资助:
    国家自然科学基金面上项目(72374221); 国家社会科学基金一般项目(20BGL249); 中南财经政法大学中央高校优秀青年团队培育项目(自然科学类)(2722023DY001)

Impact of Cultivated Land Endowment on Crop Planting Structure in Hunan Province

DING XiaoYing1,3(), CAI YanRong2, SONG Min2, JIN DaWei3(), CAO ChunXia1   

  1. 1 Hubei Biopesticide Engineering Research Center, Wuhan 430064
    2 School of Business Administration, Zhongnan University of Economics and Law, Wuhan 430073
    3 School of Information Engineering, Zhongnan University of Economics and Law, Wuhan 430073
  • Received:2025-07-01 Accepted:2025-08-11 Published:2026-05-16 Online:2026-05-20

摘要:

【目的】揭示湖南省耕地禀赋和作物种植结构的时空分异特征,并基于耕地禀赋分析种植结构的影响因素,为优化农业布局、协调资源利用与作物生产提供科学依据。【方法】基于2017—2021年湖南省遥感影像和统计年鉴数据,从地理条件、耕地质量与耕地数量3个维度构建耕地禀赋评价指标体系,并利用作物种植占比判断种植结构类型,运用Dagum基尼系数、空间自相关模型和最优参数地理探测器等方法分析全省四大地理区域121个县域耕地禀赋对种植结构的影响。【结果】(1)2017—2021年湖南省耕地禀赋总体呈现“东西分异、平原优势”特征,且随时间推移具有梯度强化趋势,区域差距显著。(2)作物种植结构呈现多元化转型趋势,单作物主导型种植结构县域数量减少了21.0%,但2021年占比为52.9%,绝对优势依然明显;双作物主导型种植结构县域数量较少且变化稳定;多作物主导型种植结构类型逐渐丰富,且规模不断扩大,占比从2017年的30.6%提升至2021年的44.6%。(3)地表粗糙度和耕地坡度是影响湖南省作物种植结构的重要因子;县域平均坡度、耕地面积占比、地表起伏度、热量条件和土壤肥力是影响湖南省作物种植结构的次要因子。(4)洞庭湖地区耕地禀赋较好,双季稻种植专业化程度高,但面对土壤肥力下降趋势,未来可合理提高油料作物种植占比;长株潭地区受限于耕地数量,正面临水稻“双改单”种植结构调整,一定程度上会加剧耕地利用矛盾,未来还需进一步调整;湘南地区作物类型丰富,但受限于地形,未能发挥水热资源优势,未来应以经济作物种植为调整方向;大湘西地区正由单一单季稻型转向单季稻-蔬菜-其他作物型种植结构,利用山地垂直气候差异形成立体农业,但该区域路网稀疏,种植区远离消费市场,不利于农产品市场交易。【结论】湖南省种植结构调整需结合各地资源禀赋特征,对洞庭湖、长株潭、湘南和大湘西地区分别采取稳粮扩油、应对“双改单”、发展经济作物、立体农业等差异化策略。

关键词: 耕地禀赋, 种植结构, 时空分异特征, 最优参数地理探测器, 湖南省

Abstract:

【Objective】This study aimed to reveal the spatio-temporal differentiation characteristics of cultivated land endowment and crop planting structure in Hunan Province, and analyze the influencing factors of planting structure based on cultivated endowment, so as to provide a scientific basis for optimizing agricultural layout and coordinating resource utilization and crop production.【Method】Based on the remote sensing images and statistical yearbook data at county level of Hunan Province from 2017 to 2021, an evaluation index system of cultivated land endowment was constructed from three dimensions: geographical conditions, cultivated land quality and cultivated land quantity, and the type of planting structure was determined by using the proportion of crop planting area. The Dagum Gini coefficient, spatial autocorrelation model and optimal parameter geodetector were used to analyze the impact of cultivated land endowment on planting structure in 121 counties of the four major geographical regions in the province.【Result】(1) From 2017 to 2021, the endowment of cultivated land in Hunan Province generally presented the characteristics of "east-west differentiation, plain advantage", and showed a gradient strengthening trend over time, with obvious regional gap. (2) The crop planting structure was showing a trend of diversified transformation. The number of counties with single-crop dominant planting structures has decreased by 21.0%, but its proportion in 2021 was 52.9%, and its absolute advantages remained obvious. The number of counties with dual-crop dominant planting structure was relatively small and changed stably. The types of multi-crop dominant planting structures have gradually become more diverse, and their scales have continued to expand. The proportion has increased from 30.6% in 2017 to 44.6% in 2021. (3) Surface roughness and cultivated land slope were important influencing factors affecting crop cultivation in Hunan Province; average slope of the county area, the proportion of cultivated land area, surface undulation, heat conditions and soil fertility were the secondary driving factors affecting crop cultivation in Hunan Province. (4) The cultivated land endowment in the Dongting Lake area was relatively favorable, and the specialization degree of double-cropping rice cultivation was high. However, in the face of the downward trend of soil fertility, the proportion of oil crop cultivation could be reasonably increased in the future. The Changsha-Zhuzhou- Xiangtan region was limited by the amount of cultivated land and was currently facing the adjustment of the planting structure from "double to single", which would to some extent intensify the contradiction of cultivated land utilization. Further adjustments are needed in the future. The crop types in the southern part of Hunan Province were rich. However, limited by the terrain, the advantages of water and heat resources have not been fully utilized. In the future, the adjustment direction should be the cultivation of cash crops. The Greater Western Hunan region was shifting from a single single rice type to a planting structure of single rice-vegetables-other crops, making full use of the vertical climate differences in the mountains to form three-dimensional agriculture. However, the road network in this area was sparse, and the planting areas were far from the consumer market, which was not conducive to the market transactions of agricultural products.【Conclusion】The adjustment of the planting structure in Hunan Province should take into account the resource endowment characteristics of each region. Different strategies such as stabilizing grain production and expanding oil production, responding to the "double to single", developing economic crops, and implementing multi-layered agriculture should be adopted respectively for the areas of Dongting Lake, Changsha-Zhuzhou- Xiangtan, Southern Hunan, and the Greater Western Hunan region.

Key words: cultivated land endowment, planting structure, spatio-temporal differentiation characteristics, optimal parameter geographical detector, Hunan Province