Tree Carbon Storage in Urban Forests in Aukland

As shown in Figure 1, the amount of carbon accumulated in trees in the forests of Urban urban areas varies greatly. As shown in the table, the average total carbon stock of trees in urban forest is 31.21 Kg C / m ^ 2, the carbon storage range is wide, 0.31 ~ 115.64 Kg C / m ^ 2. As the Auckland region is located in the conically shaped area of ​​the volcano where it disappeared, the amount of carbon stock increased dramatically compared to all the other urban forests investigated in the Auckland region (Figure 1).

Carbon storage (storage) mainly occurs in forests and soil through the natural process of photosynthesis. The transfer of carbon to trees and soil is part of the planet's global carbon cycle. Forests and coral reefs have large carbon pools useful for global climate adjustment.

Forests are one of the most important ways for our planet to regulate the climate. This is easy: the tree removes carbon from the atmosphere and stores it. Older forests tend to store more carbon than younger forests, just like a whole medium-sized tree, big trees can add the same amount of carbon to the forest within a year. Understanding the world's forestry system is an important factor in building the health of the earth. Forest ecologists can do this by strolling through the forest they are studying and collecting the data of each tree. One of the forest walkers is Kristina Anderson-Teixeira, the leader of the ForestGEO ecosystem and climate initiative which is monitoring over 6 million trees worldwide.

In order to produce food, trees absorb and confine carbon dioxide in trees, roots and leaves. Carbon dioxide is one cause of global warming. Forests are carbon storage areas or "sinks" that fix as much carbon as possible. This locking process stores carbon as wood, not the usable "greenhouse" gas. The shadow that causes cooling is the best known tree. The wooden shadows reduce the need for air conditioning in the summer. In winter, trees block the wind in winter and reduce heating costs. Studies have indicated that some of the cities not covered by cooling the trees may be "heat islands" 12 degrees Fahrenheit higher than the surrounding area.

Managing urban forests for carbon recovery is usually focused on allocating resources for the most efficient tree species for long-term carbon storage. Growth rate is important for carbon efficiency, but long life, large and tree intensive tree species will most possibly store carbon, especially compared to many short-lived and rapidly growing species (21). Choosing the right place for individual species is also important to maximize the carbon benefits of urban trees. Trees adapted to their site will have higher growth rates and lower mortality rates, especially early after establishment. The correct location of the tree associated with the building will also optimize the energy saving associated with the summer shade and wind protection. For example, if you place it on the west side of the building, you usually get the maximum cooling effect in summer.