通过作物迁移适应气候变化,需要在中国北方平原环境可持续性的联系视角
Weiyi Gu1, Guosong Ma1,2, Rui Wang1
1State Key Laboratory of Pollution Control and Resource Reuse School of Environment, Nanjing University, Nanjing, P. R. China.
Nature food
|June 28, 2024
概括
农作物迁移可以在全球变暖的情况下帮助生产,但像小麦迁移这样的适应策略增加了土地,水,能源使用和碳排放. 优化灌和施肥是可持续气候适应的关键.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 环境科学 环境科学
背景情况:
- 全球变暖影响作物生产,需要作物迁移等适应策略.
- 农作物迁移对环境的反仍然在很大程度上未知.
- 了解土地-水-能源-碳联系对于评估适应影响至关重要.
研究的目的:
- 开发一个综合框架来评估气候影响和适应反.
- 确定气候适应和环境可持续性之间的协同效应.
- 评估北中国平原的小麦和玉米迁移情况.
主要方法:
- 综合框架的开发,考虑到土地-水-能源-碳的联系.
- 应用框架评估小麦和玉米迁移情景.
- 分析作物生产,土地使用,用水,能源消耗和碳排放情况.
主要成果:
- 到2050年代,小麦迁移可能会使作物产量增加18.5%.
- 这种适应导致土地利用 (~19.2%),水利用 (~20.2%),能源使用 (~19.5%) 和碳排放 (~19.9%) 的不成比例增加.
- 优化灌和肥料管理提供了关键的缓解机会.
结论:
- 作为气候适应战略的作物迁移具有重要的环境权衡.
- 可持续的气候适应需要减轻负面环境外部性.
- 综合方法对于平衡作物生产需求与环境可持续性至关重要.
相关概念视频
Adaptations that Reduce Water Loss
25.5K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.5K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Migration
7.9K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
7.9K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K


