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Definition, Types, and Environmental Impact. Your Privacy Rights. By measuring the time between each returning beam, the height of each of these objects can be measured. Modern LiDAR systems send almost one million pulses per minute, which allows for the measurement of both the height and the shape of the canopy.
When combined with infrared photography, in which different types of trees show up as different colors, scientists can determine the size, species and density of trees in a forest. All of this information is necessary to more accurately measure carbon content. Historically, this measurement required a trained forester to walk through the forest to gather data — a process that was both expensive and time consuming.
LiDAR allows the same data to be gathered with a fraction of the time and money. Others are less obvious, such as by-products that go into everyday items like medicines, cosmetics and detergents. Habitats for biodiversity and livelihood for humans Looking at it beyond our narrow, human — not to mention urban — perspective, forests provide habitats to diverse animal species.
Forests provide jobs for more than 13 million people across the world In addition, million people live in forests, including 60 million indigenous people. Yet, we are losing them. Between and , the world lost some million ha of forest, an area the size of South Africa. When we take away the forest, it is not just the trees that go. The entire ecosystem begins to fall apart, with dire consequences for all of us. They provide ecosystem services that are critical to human welfare. Many other forest areas around the globe also serve as significant watershed areas.
Forests serve as reserves for the genes of biodiversity. Forests also support biodiversity by offering enabling environments where different plants and animals can easily thrive. Forests play an important role in the purification of the atmospheric air. During the day, trees and plants absorb carbon dioxide for photosynthesis and give out oxygen. As such, they help in the purification of the air that we breathe. Forests thus serve as an instrumental tool for reducing the amount of carbon dioxide and other greenhouse gasses in the environment which are responsible for global warming.
Forests serve as climate stabilizers since trees and plants regulate atmospheric temperatures through evapotranspiration and proving environmental breeze. In urban settings, for instance, the presence of trees can reduce the dependence of air conditioners. Plants and trees help to recycle the soil nutrients through the shedding of leaves and small branches.
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