综合灌和气优化是美国玉米和大豆生产的资源高效适应战略
Chenchen Ren1, Liyin He1, Lorenzo Rosa2
1Biosphere Sciences and Engineering, Carnegie Institution for Science, Stanford, CA, USA.
Nature food
|January 8, 2025
概括
优化和灌是农业适应气候变化的关键. 这一策略提高了作物产量和水资源的可持续性,并证明了对大多数美国作物生产的成本效益.
科学领域:
- 农业科学 农业科学
- 适应气候变化 适应气候变化
- 环境可持续性 环境可持续性
背景情况:
- 气候变化对全球农业和作物产量构成重大威胁.
- 和水资源管理对作物适应性的协同效应仍未得到充分研究.
研究的目的:
- 研究和水投入对农业适应气候变化的综合影响.
- 确定资源高效的策略,以减轻美国主要作物的气候相关产量损失.
主要方法:
- 开发回归模型,利用2008-2020年美国县级农业数据.
- 模拟气候变化场景 (1.5°C和3°C升温) 以评估对作物生产的影响.
- 经济分析以评估拟议的适应战略的成本效益.
主要成果:
- 综合优化灌和输入是最有效利用资源的策略,以抵消气候相关的产量损失.
- 在预计的变暖情景下,对玉米和大豆的水和应用的具体调整被量化.
- 拟议的战略大大减少了不可持续的灌取水量,提高了两种作物的水资源可持续性.
结论:
- 优化和水资源管理对于在气候变化中保持农业弹性至关重要.
- 这种综合方法为超过80%的美国玉米和大豆生产提供了成本有效的解决方案.
- 这些发现强调了战略投入管理在农业适应气候变化的关键作用.
更多相关视频
05:56Direct Agroinoculation of Maize Seedlings by Injection with Recombinant Foxtail Mosaic Virus and Sugarcane Mosaic Virus Infectious Clones
Published on: February 27, 2021
4.8K
11:53Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
Published on: December 9, 2012
12.9K
相关概念视频
Adaptations that Reduce Water Loss
25.1K
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.
25.1K
Key Elements for Plant Nutrition
18.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.6K
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
Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
