The natural complex (or a natural territorial complex) is such territory which is allocated from the others with the individual characteristics: the unity of the nature, a geographical location and processes proceeding on it. Any natural complexes change over time therefore it is worth understanding what nature of these changes.
Anthropogenic influence
At the moment on Earth there is practically no place left where the leg of the person did not step. It will be a question first of all of its influence on natural complexes. It is connected with a number of factors. First, the number of people on the planet increases. In order that resettlement happened evenly, it is necessary to conduct full-time work on development of new lands. Crops are felled trees, cultivated, representatives of local fauna are killed or expelled.
Secondly, not to stop development of human technologies. Thanks to the modern equipment of people can get the look into Universe depths, can deeply get into the abyss of the seas and oceans, can explore the hottest and coldest places on the planet. To take at least discovery of America by Columbus. If not development of trade navigation, it would be possible not to dream of similar opening. The person pursued by feeling of curiosity gets there where earlier was not, and tries to survive on new places. It does not occur without anthropogenic influence on the environment.
The third, most essential factor is a development of the industry. Thousands of the plants on all planet allocate in the atmosphere, the earth and water thousands of various toxic substances which it is faulty pollute the environment. Earth is one big natural complex too. Without saying already about how the concrete ground on which there are industrial enterprises becomes soiled.
Interaction of components of a natural complex
Besides human influence, in them there are continuous processes which in dynamics change and will transform natural complexes. These processes are connected with those interconnected components which are inherent in any natural complex. It is a relief, waters, soils, climate, vegetation and fauna. Any change in time of any of these components inevitably leads to change of all others. A living example - an era of dinosaurs. In prehistoric time these surprising animals inhabited all Earth. If not falling of a meteorite and the sharp climate change which is not caused by this event on all planet, nobody would tell what would be modern natural complexes and there would be a person on Earth. Other example, which at all very famous - destruction of an ozone layer of the atmosphere. Because of excessive emissions of greenhouse gases by the industrial enterprises, the planet practically did not have means from the ultra-violet radiation of the Sun. It leads to gradual change of climatic conditions on all Earth and increase in global sea level.