环境和人类活动对大米种植适宜性的影响,基于MaxEnt模型
Saiji Heng1,2,3, Na Li4,5,6, Qiliang Yang7,8,9
1Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China.
International journal of biometeorology
|August 19, 2024
概括
这项研究使用最大透模型绘制了中国适合种植大米的种植区. 人类活动,特别是人口密度,极大地影响了水种植的适宜性,影响了食品生产的安全性.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 地理信息科学 地理信息科学
背景情况:
- 米是全球重要的粮食作物,需要对适合种植面积进行准确的评估,以优化产量和生产规划.
- 了解合适的水种植区的空间和时间动态对于粮食安全至关重要,尤其是在不断变化的环境条件下.
研究的目的:
- 从1981年到2020年模拟和预测中国适合种植大米的种植面积.
- 分析这些合适区域的空间和时间变化.
- 确定影响大米种植适宜性的关键因素.
主要方法:
- 利用最大 (MaxEnt) 模型进行生态利基建模.
- 综合气候,土壤和人类活动数据 (GDP,人口密度,阳光持续时间).
- 分析了时空变化和因素对大米适合性的影响.
主要成果:
- 国内生产总值 (GDP),人口密度 (Pop) 和年度阳光持续时间 (Sun) 是主要的驱动因素,其中人类活动占主导地位.
- 高适宜性地区集中在湖北,湖南和江西等特定地区.
- 适合种植的种植面积略有波动,但适合种植的中等面积随着时间的推移而增加,而不适合种植的面积则随着时间的推移而减少.
结论:
- 人类活动,特别是人口密度,对中国大米种植的适宜性产生重大影响.
- 调查结果为管理大米种植和在气候变化中确保食品生产安全提供了科学证据.
- 该研究强调需要在农业规划中考虑社会经济因素,以实现可持续的粮食生产.
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