农场上的多用途树木可以改善马拉维的营养
Emilie Vansant1, Charlotte Hall1,2, Bowy den Braber1
1Department of Geosciences and Natural Resource Management, University of Copenhagen, 1350 Copenhagen K, Denmark.
One earth (Cambridge, Mass.)
|March 14, 2025
概括
马拉维农村的农场树木显著提高了妇女的饮食,特别是当用于食物时. 多用途树提供最好的微量营养素充足度 (维生素A,,铁,叶酸) 全年.
科学领域:
- 农业科学 农业科学
- 营养科学 营养科学
- 农村发展 农村发展
背景情况:
- 有证据表明,景观树木在低收入和中等收入国家支持健康饮食.
- 现有的研究往往依赖于广泛的关联,缺乏关于特定树木贡献的细节.
- 了解农场树木在不同农村环境中的作用对于有针对性的干预至关重要.
研究的目的:
- 研究马拉维农村农场树木利用 (粮食,收入,燃料) 和微量营养素充足度之间的关系.
- 分析农场树木的不同用途如何影响饮食模式和微量营养素摄入量 (维生素A,,铁,叶酸).
- 确定最重要的树木用于改善妇女营养状况.
主要方法:
- 对马拉维农村的460名妇女进行了社会经济,土地使用和饮食调查.
- 数据收集跨越干旱和潮湿季节,以捕捉季节性变化.
- 统计分析检查了农场树木使用与微量营养素充足度之间的相关性.
主要成果:
- 农场树木专门用于食物的使用成为女性跨季节微量营养素充足度的最强预测因素.
- 没有观察到使用农场树木仅用于燃料或收入创造的一致的饮食益处.
- 农场内的多用途树木与所有测量的微量营养素的充足摄入有积极的关联.
结论:
- 为粮食生产优先使用农场树木是提高马拉维农村妇女微量营养素地位的关键.
- 促进多用途树木可以有助于改善饮食多样性和营养安全.
- 需要特定的背景策略来利用农林系统,以获得更好的公共卫生结果.
相关概念视频
02:35Key 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
02:11The Roles of Bacteria and Fungi in Plant Nutrition
34.9K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
34.9K
01:59Plant Breeding and Biotechnology
18.7K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.7K
02:40Epiphytes, Parasites, and Carnivores
12.9K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
12.9K
01:57Adaptations that Reduce Water Loss
25.0K
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.
25.0K
01:46The Calvin Benson Cycle
4.4K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.4K