How do people care for nature?

In order to receive minerals and many useful resources from nature, we must take care of nature, protect it. People cleanse reservoirs of debris, dirt, silt. They clean springs that are clogged with mud and thus help to fill the reservoirs. Fertilize the soil to make it more fertile. They clear the forests of dead wood and thus enable young plants to grow. We need to take care of the resources of our Earth and not only use them thoughtlessly, but also protect and purify them.