Biogeochemistry

Biogeochemistry is the study of how chemicals and elements move through the Earth and living things. It looks at processes in the air, water, soil, and living organisms to see how they all connect. Scientists study important cycles, like how carbon and nitrogen travel and change.

This field helps us understand how plants, animals, and tiny microbes affect the world. By studying these cycles, we can learn more about how the Earth works together. Biogeochemistry is important for solving problems like climate change and protecting our environment.

History

Early Greek

The ancient Greeks thought that nature works in cycles.

18th-19th centuries

In the 1800s, farmers became more interested in soil chemistry. This helped scientists learn about nutrients and how they connect to life. Two scientists, Dumas and Boussingault, wrote an important paper in 1844. The word biosphere was first used by Jean-Baptiste Lamarck in 1802. Scientists like Charles Lyell, John Tyndall, and Joseph Fourier studied climate and how it connects to glaciation and weathering.

20th century

A scientist named Vladimir Vernadsky from Russia and Ukraine is considered the founder of modern biogeochemistry. In 1926, he described Earth as a living whole. He talked about three important parts of Earth: non-living processes, life processes, and human thinking.

Today, human actions like farming and industry change Earth a lot. An American scientist, G. Evelyn Hutchinson, helped explain the main ideas of this field. A British scientist named James Lovelock talked about these ideas using something called the Gaia Hypothesis. Another scientist, Manfred Schidlowski, studied the chemistry of the very early Earth.

Biogeochemical cycles

Biogeochemical cycles are the paths that chemicals take as they move through living things and non-living parts of Earth. Living things make up the biosphere, while non-living parts include the atmosphere, the water (hydrosphere), and the land (lithosphere).

There are cycles for elements like carbon, nitrogen, and oxygen, as well as for water and other molecules. Some cycles include places where materials can stay for a long time before moving again.

Research

Biogeochemistry research groups are at many universities around the world. This subject connects many areas of study, so these groups are part of fields such as atmospheric sciences, biology, ecology, geomicrobiology, environmental chemistry, geology, oceanography, and soil science. They are often part of larger areas of study like earth science and environmental science.

Researchers study how important elements like carbon, oxygen, nitrogen, phosphorus, and sulfur move through nature. They also look at special traces of elements and metals. This work helps us understand how to find useful resources and clean up pollution. Important topics in biogeochemistry include studying natural systems with modelling, how soil and water recover, changes in surface water, storing carbon, cleaning the environment, effects on the world, climate change, finding resources, soil chemistry, and chemical oceanography.

Evolutionary Biogeochemistry

Evolutionary biogeochemistry is a part of biogeochemistry. It studies how cycles of important elements, such as carbon and nitrogen, have changed over Earth's long history. This helps us learn how these cycles began and how they grew with the development of life on our planet.