primary production

简明释义

初次生产

英英释义

例句

1.The study of ecosystems often begins with understanding primary production, which refers to the creation of organic compounds from atmospheric or aquatic carbon dioxide.

生态系统的研究通常始于理解初级生产，即从大气或水中二氧化碳创造有机化合物的过程。

2.Measuring primary production helps scientists understand the energy flow within an ecosystem.

测量初级生产有助于科学家理解生态系统内的能量流动。

3.Agricultural practices can significantly impact primary production by influencing soil health and nutrient availability.

农业实践可以通过影响土壤健康和养分可用性显著影响初级生产。

4.In marine environments, primary production is primarily carried out by phytoplankton, which use sunlight to convert CO2 into biomass.

在海洋环境中，初级生产主要由浮游植物进行，它们利用阳光将二氧化碳转化为生物质。

5.Research shows that climate change is affecting primary production rates in various ecosystems around the world.

研究表明，气候变化正在影响全球各地生态系统的初级生产率。

作文

Primary production is a fundamental concept in ecology that refers to the process by which autotrophs, primarily plants and phytoplankton, convert sunlight into chemical energy through photosynthesis. This process not only sustains the autotrophs themselves but also forms the basis of the food web, supporting a diverse range of life forms. Understanding primary production (初级生产) is crucial for various fields, including environmental science, agriculture, and climate change studies.In terrestrial ecosystems, primary production (初级生产) occurs mainly in forests, grasslands, and agricultural lands. Plants absorb sunlight using chlorophyll, converting carbon dioxide from the atmosphere and water from the soil into glucose and oxygen. This transformation is vital, as it provides energy for the plants and oxygen for other organisms. The rate at which this process occurs in a given area over a specific time period is known as the gross primary production (GPP). However, some of this energy is used by the plants for their own metabolic processes, leading to net primary production (NPP), which is the amount of energy available to consumers in the ecosystem.Aquatic ecosystems also demonstrate significant primary production (初级生产), predominantly through phytoplankton. These microscopic organisms are responsible for a large portion of the Earth’s oxygen production and serve as the foundation for aquatic food chains. Factors such as light availability, nutrient concentrations, and water temperature greatly influence the rates of primary production (初级生产) in marine environments. For instance, upwelling zones, where nutrient-rich waters rise to the surface, often exhibit high levels of productivity, supporting vast marine life.The implications of primary production (初级生产) extend beyond ecological balance; they also play a critical role in global carbon cycles. As autotrophs absorb carbon dioxide during photosynthesis, they act as carbon sinks, mitigating some of the impacts of climate change. However, human activities, such as deforestation and pollution, can disrupt these natural processes, leading to decreased primary production (初级生产) and, consequently, biodiversity loss.In agriculture, understanding primary production (初级生产) is essential for improving crop yields and sustainability. Farmers can enhance primary production (初级生产) by selecting appropriate crops, employing sustainable farming practices, and managing resources effectively. Techniques such as crop rotation, organic farming, and agroforestry can increase soil health and promote higher rates of primary production (初级生产), ensuring food security for growing populations.In conclusion, primary production (初级生产) is a vital ecological process that supports life on Earth. It is essential for maintaining food webs, regulating atmospheric gases, and sustaining agricultural practices. As we face environmental challenges, understanding and protecting the mechanisms behind primary production (初级生产) will be crucial for fostering a sustainable future. Awareness and education around this concept can empower individuals and communities to make informed decisions that support ecological health and resilience.