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黄河中下游地区耕地轨迹演变及驱动机制研究——以河南省为例 |
Study on the Evolution and Driving Mechanism of Cultivated Land Trajectory in the Middle and Lower Yellow River ——Taking Henan Province as an example |
投稿时间:2020-04-25 修订日期:2020-05-23 |
DOI: |
中文关键词: 河南省 黄河 耕地轨迹 驱动力 Logistic回归模型 |
英文关键词: Henan province The yellow River Farmland track Driving force logistic regression model |
基金项目:国家自然科学青年基金(41901259) |
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中文摘要: |
为探究黄河中下游地区耕地轨迹演变规律,以河南省沿黄地区和非沿黄地区为例,运用变化轨迹方法、景观格局指数和Logistic回归模型进行耕地轨迹演变及其驱动机制的对比分析。结果表明:①沿黄地区耕地扩张和缩减幅度高于非沿黄地区,扩张型耕地在沿黄地区主要沿黄河两岸分布,非沿黄地区分布均匀。非沿黄缩减型耕地向各行政区的中心集聚,沿黄缩减型耕地明显向郑州集聚。②耕地是河南省优势景观类型。沿黄地区扩张型耕地和缩减型耕地聚集程度和连通性高于非沿黄地区,但连通聚集增长率低于非沿黄地区。③Logistic分析表明,沿黄地区与非沿黄地区的耕地轨迹转化驱动因素略有差异。沿黄地区耕地的扩张对黄河水的依赖性很高,非沿黄地区受经济发展和社会生活的影响较大。缩减型耕地在沿黄地区和非沿黄地区受驱动因子基本一致,区别主要在贡献率的不同。以期保障国家粮食安全及响应黄河流域高质量发展提供理论依据。 |
英文摘要: |
To explore the evolution rule of cultivated land trajectory in the middle and lower reaches of the Yellow River, taking the areas along the Yellow River and non-yellow areas in Henan Province as research area, a comparative analysis of the evolution of the cultivated land trajectory and its driving mechanism was carried out using the change trajectory method, landscape pattern index and Logistic regression model. The results show that: ①The expansion and shrinkage of cultivated land along the Yellow River area is higher than that in the non-Yellow River area. Reduced cultivated land in non-yellow areas gathers toward the center of their respective administrative regions, and along the yellow reduced cultivated land, it tends to accumulate in Zhengzhou. Cultivated land is the dominant landscape type in Henan Province. The expansion and shrinkage of cultivated land accumulation and connectivity in the Yellow River area are higher than in the non- Yellow River area, but the growth rate of connected agglomeration is lower than in the non- Yellow River area. ③Logistic analysis showed that the driving factors of cultivated land trajectories in the Yellow and Non-Yellow areas are slightly different. The expansion of cultivated land along the Yellow River region is highly dependent on the water of the Yellow River, and the non-yellow river region is affected by economic development and social life. The difference is in the contribution rate. This research provides a theoretical basis for ensuring national food security and responding to the high-quality development of the Yellow River. |
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