在十字路口的北极食品和能源安全
Adrian Unc1,2, Majdi R Abou Najm3, Paul Eric Aspholm4
1Memorial University of Newfoundland, School of Science and the Environment, Corner Brook, NL Canada.
Communications earth & environment
|February 21, 2025
概括
北极的食物系统将传统知识与现代影响相结合. 他们的未来取决于平衡遗产,创新和社区主导的全球经济参与.
科学领域:
- 食品科学 食品科学 食品科学
- 土著研究土著研究.
- 环境科学 环境科学
背景情况:
- 北极的粮食系统的特点是传统生态知识 (TEK) 和现代,通常是能源密集型的影响的复杂相互作用.
- 这些转变受到历史殖民的重大影响,改变了传统做法并引入了外部因素.
研究的目的:
- 分析北极食物系统的现状和未来发展轨迹.
- 确定影响这些系统可持续性和弹性的主要因素.
- 探索传统实践与现代创新之间的必要平衡.
主要方法:
- 对有关北极食物系统的现有文献进行定性分析.
- 综合了与北极地区相关的社会经济和环境数据.
- 案例研究方法检查了不同的北极社区食品倡议.
主要成果:
- 由于外部影响的整合,北极的粮食系统面临着挑战,需要谨慎管理.
- 通过将传统知识与创新方法相结合,可显著提高性.
- 以社区为导向的参与全球经济,尊重当地步伐,对于可持续性至关重要.
结论:
- 北极食品系统的未来可行性取决于TEK和创新的战略融合.
- 促进弹性需要对全球经济互动采取遗产驱动的方法.
- 赋予当地社区设定变革速度的权力,对于长期的粮食安全和文化保护至关重要.
更多相关视频
13:38Laser-Induced Fluorescence Emission L.I.F.E. as Novel Non-Invasive Tool for In-Situ Measurements of Biomarkers in Cryospheric Habitats
Published on: October 26, 2019
7.9K
11:33Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
Published on: September 2, 2016
13.7K
相关概念视频
00:48Optimal Foraging
11.9K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
11.9K
01:16What is Climate?
18.2K
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.
18.2K
01:19Energy Balance
286
The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
286
01:06Primary Production
23.5K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.5K
00:51Energy Budgets
9.2K
Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
9.2K
00:46Trophic Efficiency
20.3K
Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
20.3K