Cassia siamea (4.5 to 9.1 kg of CO2 per year)

Cassia siamea, also known as Siamese cassia or Siamese senna, is a species of tree native to Southeast Asia but now cultivated in various tropical regions around the world. It is valued for its fast growth, tolerance to a wide range of soil types, and various uses, including timber production, agroforestry, and landscaping.

While specific data on carbon sequestration by Cassia siamea may be limited, it is generally considered to contribute to carbon absorption through photosynthesis, like other tree species. The exact amount of carbon dioxide absorbed by a mature Cassia siamea tree can vary depending on factors such as tree age, size, health, and environmental conditions.

Estimates suggest that a mature Cassia siamea tree can absorb approximately 10 to 20 pounds (4.5 to 9.1 kilograms) of carbon dioxide per year. However, these figures are approximate and can vary depending on local climate conditions, soil quality, and management practices.

In addition to its potential for carbon sequestration, Cassia siamea provides various environmental and socioeconomic benefits. Its fast growth and nitrogen-fixing abilities make it suitable for agroforestry systems, where it can improve soil fertility and provide shade for crops. Cassia siamea is also planted for timber production, as its wood is used for furniture, construction, and fuelwood.

Furthermore, Cassia siamea has cultural and medicinal significance in some regions, where its leaves, bark, and seeds are used in traditional medicine to treat various ailments. However, sustainable harvesting practices are important to ensure the conservation of this species and its associated benefits.