Earth's "Web of Life"

Imagine if Earth were a giant apple — the layer that sustains all life,biospherewould be no thicker than its thin peel. We define:the sum of all living organisms on Earth and their environments is called the biosphere. It is not merely a geographical space, but a dynamically balanced whole and thelargest ecosystem on Earth.

Core Concepts and Interconnections

The biosphere includes not only the familiar animals and plants, but also microscopic bacteria andfungi. Throughdata analysis, scientists have discovered that the biosphere has a certainself-regulating capacity, but this capacity has its limits. For example,bioaccumulationreveals how harmful substances travel globally across different spheres through the food chain. To understand this more intuitively, we can conduct an experiment:measure humidity levels three times a day (morning, noon, and evening) in bare land, dense shrubbery, and woodland— you will discover that living organisms profoundly shape the environment they inhabit.