Dacheng Famous Garden is harmonious ｜ Taking the Altai Mountain as a model to explore the potential of the forest ecology "carbon exchange" potential

Recently, the South China Botanical Garden revealed the relationship between the growth of trees in Central Asia, waiting, and climate factor. In the context of global changes, the study is of great significance for the sustainable development and exploring the carbon exchange potential of the forest ecology.

Carbon exchange refers to the use of trees and afforestation, forest management, vegetation recovery and other measures to absorb carbon dioxide in the atmosphere and fix them in vegetation and soil to reduce the concentration of greenhouse gases in the atmosphere. Essence The process of landing green plants fixed carbon dioxide through photosynthesis is called "green carbon". Forests, rivers and lakes wetlands, grasslands, farmland, etc. all belong to the category of "green carbon".

As the main body of the land ecosystem, the forest is a master of solid -state charcoal. Its average annual carbon amount and offset 11%of the carbon emissions of fossil fuel in the same period. The northern needle leaf forest is one of the largest biological communities on the planet, and Central Asia is one of the important distribution areas of northern needle leaf forest. In the context of global changes, studying the relationship between trees growth, waiting, and climate factor in Central Asia is of great significance for the sustainable development and exploring the sustainable development of the forest ecology.

Kang Jian, a doctoral student of the South China Botanical Garden Ecology and Science Research Center of the Chinese Academy of Sciences, used the process-based "Vaganov-SHASHKIN model" to simulate the growth rate of the tree-based "Vaganov-SHASHKIN model". The three sites are research objects, and the "formation of layers of objects" of deciduous pine is evaluated, that is, the beginning and end of the growth season. The results showed that the temperature and precipitation before the growth of the growth season extended the growth season, but it did not promote the radial growth of the trees. Therefore, scientific researchers believe that the impact of the growth rate within the period due to the climate affected by the climate on the growth of trees is greater than the length of the growth season. Related research results have recently been published in the international environmental science journal "ECOLOGical Indicators".

South China National Botanical Garden reveals the response of trees growth based on the formation layer and climate factor of Altai Mountain in China

It is understood that in recent years, my country has been focusing on the development and improvement of carbon exchange capacity. my country's current forest accumulation is 17.56 billion cubic meters, and the total carbon reserves of forest vegetation are 9.186 billion tons. According to the "Global Forest Resources Evaluation 2020", the average annual net growth of China's forests from 2010 to 2020 reached 1.9 million hectares, and the average annual growth of the forest area has jumped in the world's first.

Wen, Picture/Guangzhou Daily · Xinhua City Reporter: Huang Lan Correspondent: Zhou Fe

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