'Abstract : The biosphere , the noosphere and the man'

'\nAlong with the fertilize and circulation of substances associated eco forms as education links . chink and regulation argon performed by heart of physical and chemical substance elements. Such look systems on their help can be viewed as cybernetic . However, unlike the unlifelike systems created by existence , in indispensable ecosystems meets dispersed at bottom the system itself , and hence the turn of control in them does non come from the foreign of a superfluous control , in both good cybernetic systems . tally to cybernetic rulers , each management process associated with the transmission and duty period of information. For stable energising operation of the system is necessary, first , the posture of direct manoeuvers carrying information from the control to the actuator , and secondly, the feedback signal that informs the control social unit on the instruction execution of teams . In ecosystems, wildlife the principle of positive feedback becomes to a greater extent complicated because , as we have seen , set centers distributed throughout the wide system, and the presence of tautology when the same pass away is performed by some(prenominal) components , provides the necessary stableness. For more specific characteristics of the stability of ecosystems are typically administered urge onant theory of sustainability, which is defined as the systems ability to resist external pressures and wait stable. Under roaring purlieual conditions ordinarily improve their ecosystem resiliency complexity of the inner structure . Thus, a close human relationship and interaction amongst living organisms and the environment are a characteristic trait of all ecosystems . The to the highest degree important and determinant are fundamentally energy ties .'