土地利用密集化主导着中国的土地提供服务:从土地系统科学的角度来看
1School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430079, China; Key Laboratory of Geographic Information System, Ministry of Education, Wuhan University, Wuhan, 430079, China.
Journal of environmental management
|March 13, 2024
概括
中国中国中国中国.
科学领域:
- 环境科学 环境科学
- 可持续性科学 可持续性科学
- 地理空间分析是什么
背景情况:
- 全球可持续发展面临着满足人口需求的挑战,同时防止土地退化.
- 中国的快速增长,城市化和农田损失凸显了需要详细的土地系统信息的需要.
- 现有的研究可能高估了土地覆盖面变化的影响,低估了土地利用的强化.
研究的目的:
- 开发2000-2015年中国陆地系统的第一个精细尺度 (1公里) 数据集.
- 识别土地系统类型,子系统和人与环境的相互作用模式.
- 分析土地系统的动态及其在支持人口和粮食生产中的作用.
主要方法:
- 开发一个高分辨率 (1公里) 的中国陆地系统数据集 (2000-2015年).
- 确定五种主要的土地系统类型及其子系统.
- 量化土地利用的强化和土地覆盖面的变化对人口能力和粮食生产的影响.
主要成果:
- 确定了五种不同的陆地系统类型和子系统,显示出各种各样的人与环境的相互作用.
- 土地系统的动态呈现出逐渐向更集中式系统的转变.
- 土地利用密集化显著提高了人口能力 (93.94%) 和粮食生产 (84.99%),远远超过了土地覆盖面变化的影响 (4.69%和11.43%).
结论:
- 与此前的假设相反,土地利用强化是支持中国人口和粮食安全的关键驱动因素.
- 基于土地覆盖的传统分析可能会误解土地生产的驱动因素.
- 将土地系统整合到土地代表和全球变化模型中,对于可持续性至关重要.
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