atmospheric nitrogen

简明释义

大气氮

英英释义

例句

1.Plants primarily absorb nutrients from the soil, but they also rely on the conversion of atmospheric nitrogen 大气氮 into a usable form.

植物主要从土壤中吸收养分，但它们也依赖于将大气氮转化为可用形式。

2.The Haber-Bosch process synthesizes ammonia from atmospheric nitrogen 大气氮 and hydrogen, revolutionizing agriculture.

哈伯-博施法通过将大气氮和氢合成氨，彻底改变了农业。

3.Certain bacteria in the soil are capable of fixing atmospheric nitrogen 大气氮, making it available for plants.

土壤中的某些细菌能够固定大气氮，使其可供植物使用。

4.Farmers often use fertilizers to enhance soil nutrients, but some prefer to rely on natural processes involving atmospheric nitrogen 大气氮.

农民通常使用肥料来增强土壤养分，但一些人更喜欢依靠涉及大气氮的自然过程。

5.The process of nitrogen fixation helps convert atmospheric nitrogen 大气氮 into ammonia, which is essential for plant growth.

氮固定的过程有助于将大气氮转化为氨，这对植物生长至关重要。

作文

Atmospheric nitrogen is a crucial component of our planet's ecosystem. It makes up about 78% of the Earth's atmosphere, playing a vital role in supporting life and various biological processes. Despite its abundance, atmospheric nitrogen is not directly usable by most living organisms. This is because nitrogen gas (N2) is relatively inert and does not easily react with other elements. Thus, plants and animals rely on a series of processes to convert this abundant gas into forms that they can utilize.One of the primary ways that atmospheric nitrogen is transformed into a usable form is through nitrogen fixation. This process occurs naturally in the environment, predominantly through the action of certain bacteria and archaea. These microorganisms possess the unique ability to convert nitrogen gas from the atmosphere into ammonia (NH3), which can then be absorbed by plants. Some plants, particularly legumes, have developed symbiotic relationships with these nitrogen-fixing bacteria, allowing them to thrive in nitrogen-poor soils.In addition to natural processes, humans have also developed methods to harness atmospheric nitrogen. The Haber-Bosch process, invented in the early 20th century, allows for the industrial production of ammonia from nitrogen and hydrogen. This innovation has had profound implications for agriculture, as ammonia is a key ingredient in many fertilizers, helping to increase crop yields and feed the growing global population.However, the reliance on synthetic fertilizers derived from atmospheric nitrogen has raised concerns regarding environmental sustainability. Excessive use of these fertilizers can lead to nutrient runoff into waterways, causing eutrophication—a process that depletes oxygen in water bodies and harms aquatic life. Moreover, the production of synthetic fertilizers is energy-intensive and contributes to greenhouse gas emissions, further exacerbating climate change.To mitigate these issues, researchers are exploring sustainable alternatives for utilizing atmospheric nitrogen. One promising approach is the development of biofertilizers, which utilize natural processes and organisms to enhance soil fertility without the negative side effects associated with synthetic fertilizers. Additionally, agroecological practices, such as crop rotation and intercropping, can help maintain healthy nitrogen levels in the soil while promoting biodiversity and ecosystem resilience.Understanding the importance of atmospheric nitrogen is essential for both ecological balance and agricultural productivity. As we face the challenges of feeding a growing population and combating climate change, finding sustainable ways to utilize this abundant resource will be key. By balancing the needs of agriculture with environmental stewardship, we can ensure that atmospheric nitrogen continues to support life on Earth for generations to come.

大气氮是我们星球生态系统的重要组成部分。它占据了地球大气的约78%，在支持生命和各种生物过程中发挥着至关重要的作用。尽管它的丰度很高，但绝大多数生物无法直接利用大气氮。这是因为氮气（N2）相对惰性，不容易与其他元素反应。因此，植物和动物依赖一系列过程将这种丰富的气体转化为它们可以利用的形式。大气氮转化为可用形式的主要方式之一是氮固定。这个过程在环境中自然发生，主要通过某些细菌和古菌的作用。这些微生物具有将来自大气的氮气转化为氨（NH3）的独特能力，氨可以被植物吸收。一些植物，尤其是豆科植物，已经与这些氮固定细菌建立了共生关系，使它们能够在氮贫乏的土壤中繁茂生长。除了自然过程，人类还开发了利用大气氮的方法。哈伯-博世过程是在20世纪初发明的，它允许从氮和氢中工业化生产氨。这一创新对农业产生了深远的影响，因为氨是许多肥料的关键成分，有助于提高作物产量，以养活日益增长的全球人口。然而，对合成肥料的依赖引发了关于环境可持续性的担忧。过量使用这些肥料可能导致营养物质流入水道，造成富营养化——这一过程耗尽水体中的氧气并危害水生生物。此外，合成肥料的生产是能源密集型的，并且导致温室气体排放，进一步加剧气候变化。为了缓解这些问题，研究人员正在探索利用大气氮的可持续替代方案。一种有前景的方法是开发生物肥料，利用自然过程和生物体增强土壤肥力，而不带来与合成肥料相关的负面影响。此外，农业生态实践，如轮作和间作，可以帮助维持土壤中的健康氮水平，同时促进生物多样性和生态系统的韧性。理解大气氮的重要性对于生态平衡和农业生产力至关重要。在我们面临养活日益增长的人口和应对气候变化的挑战时，寻找可持续利用这一丰富资源的方法将是关键。通过平衡农业的需求与环境管理，我们可以确保大气氮继续支持地球上的生命，造福未来几代人。