Example of carbon cycle source and sink

Between heaven and earth, the cycle of carbon is related to the survival of all things. The source is where the carbon comes out; the sink is where the carbon gathers. The two complement each other and maintain the balance of ecology.

The source of the carbon cycle is biological respiration. All kinds of frost compete for freedom, and life and life depend on breathing to survive. Between exhalations, carbon dioxide escapes from the atmosphere, which is one of the carbon sources. Such as the beast of the mountain forest, running through the forest, the breath is swallowed up, and the exhaled carbon is integrated into the sky.

Furthermore, the combustion of fossil fuels is also the most important carbon source. Coal, oil, and gas are buried deep over time, containing huge amounts of carbon. Once it is mined and burned, in the raging fire, carbon surges into the air in the form of carbon dioxide. In the city, the car is Ma Long, the fuel car, the engine is roaring, and the exhaust gas is ejected thinly, all of which are the flow of carbon sources; factories are lined with towering chimneys, burning coal as power, thick smoke billows, and carbon rises with the smoke, permeating the sky.

As for the raging forest fire, it is also the appearance of a sudden carbon source. If the mountain forest is dry in the sky, a one-star fire can become a prairie fire. The burning of trees turns into ashes, and the carbon in it is rapidly released, soaring into the sky, causing the carbon content of the atmosphere to rise sharply.

And the sink of the carbon cycle, the first is green vegetation. Foresters are also the lungs of the earth. The trees are lush, the leaves stretch, basking in the sun, and perform photosynthesis. Absorb carbon dioxide, retain carbon in the body, and spit out fresh oxygen. The vast rainforest, with towering trees and entangled vines, has amazing carbon sequestration power, making it a giant carbon sink. On the grassland, the grass is lush, and although the plants are small, they can stretch for thousands of miles, accumulating small amounts of carbon and stabilizing the amount of carbon in the atmosphere.

The ocean is also a source of carbon sinks. The ocean is vast, and plankton, such as algae, are abundant. They use photosynthesis to ingest carbon from seawater. And in the depths of the ocean, the pressure is huge, and part of the carbon is deposited on the seabed in the form of carbonates. Over the years, massive amounts of carbon are accumulated, slowing down the rise of atmospheric carbon concentration.

In the soil, it also hides the work of carbon sinks. Plant residues, animal manure, etc., undergo microbial decomposition and transformation, and part of the carbon is retained in the soil. Fertile soil is rich in organic matter, and carbon is stored in it, becoming a corner of the terrestrial carbon sink.

The sources and sinks of the carbon cycle are related to each other, affecting the whole body. If the source is too abundant and the sink is difficult to load, the carbon will accumulate in the atmosphere, causing the greenhouse effect to intensify and the climate to vary; if the source control is appropriate and the energy sink is increased, the ecological balance will be sustainable Therefore, when observing the example of Yuanhui, it is reasonable to understand things, protect the safety of the ecology, and protect the Kangtai of heaven and earth.