在全球范围内,主要作物中营养使用效率低的普遍性
Ji Liu1,2,3,4, Hai Wang2, Josep Penuelas3,4
1State Key Laboratory of Loess Sciences & National Observation and Research Station of Earth Critical Zone on the Loess Plateau, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China.
Nature communications
|December 10, 2025
概括
提高 (N) 和 (P) 使用效率 (NUE和PUE) 对可持续农业至关重要. 全球数据显示,NUE和PUE水平低于最佳水平,这凸显了减少对肥料的依赖的区域具体战略的必要性.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- (N) 和 (P) 使用效率 (NUE和PUE) 对可持续农业和减少对合成肥料的依赖至关重要.
- 在主要作物中,NUE和PUE的长期全球动态尚不清楚.
- 在全球范围内,营养素使用效率低于最佳水平仍然存在,特别是在发展中国家.
研究的目的:
- 分析1961年至2018年主要作物NUE和PUE的全球趋势.
- 为了确定营养使用效率的区域和特定作物的变化.
- 为改善营养管理和减少对肥料的依赖提供空间明确的见解.
主要方法:
- 编制了一个全面的全球数据库,包含来自205个国家的3360个观察结果.
- 对主要作物NUE和PUE的长期趋势的分析.
- 全球地图可视化营养使用效率的上下文依赖的变化.
主要成果:
- 全球NUE和PUE仍然低于最佳水平,区域差异很大.
- 营养素使用效率高度取决于环境,因作物类型和地理区域而异.
- 玉米在中国和美国表现出特别低效,导致N和P过剩;大米和小麦表现出特定区域的最佳效率.
结论:
- 在全球范围内增强NUE和PUE,具体上下文策略至关重要.
- 了解区域差异是制定可持续农业有针对性的干预措施的关键.
- 这项研究为明智的,特定区域的方法提供了基础,以改善营养管理和减少对肥料的依赖.
相关概念视频
Key Elements for Plant Nutrition
23.9K
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...
23.9K
What is Climate?
20.4K
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.
20.4K
Absorption of Nutrients
2.5K
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream.
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
2.5K
Adaptations that Reduce Water Loss
27.8K
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.
27.8K
Production Efficiency
18.1K
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
18.1K
Light Acquisition
9.3K
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.
9.3K


