| 释义 |
Gaia hypothesis
Gai·a hypothesis G5008300 (gī′ə)n.1. A hypothesis stating that Earth's biota constitute a single interconnected system that affects or determines the physical and chemical conditions within the biosphere, including such conditions as global temperatures, the composition of the atmosphere, and the salinity of seawater.2. Any of various related hypotheses stating that this system is self-regulating, as through feedback loops, or that it constitutes a living organism, in either case acting to maintain stable conditions that are optimal for the continuation of life.
[After Gaia, used by British scientist and environmentalist James Lovelock (born 1919) to refer to the totality of Earth's biota as a superorganism.]Gaia hypothesis (ˈɡaɪə) or Gaia theoryn (Biology) the theory that the earth and everything on it constitutes a single self-regulating living entityGai′a hypoth`esis (ˈgeɪ ə)
n. a model of the earth as a self-regulating organism, advanced as an alternative to a mechanistic model. [1970–75; < Greek gaîa earth; see Gaea] Gaia hypothesisA theory that the biosphere acts as a selfsustaining, self-regulating organism. British scientist James Lovelock named it after a Greek Earth goddess.Gaia hypothesis
Gaia hypothesis an hypothesis developed by the British scientist, James Lovelock, to suggest that the earth is one living system, such that the distinction between organic and inorganic matter is false. Gaia was an ancient Greek goddess of the earth and fertility Contrary to established scientific notions, Lovelock argues that a conducive physical environment did not first exist within which living organisms could develop, but rather the living organisms create the necessary physical environment for their survival. This leads to the concept of the planet earth as a CYBERNETIC system. In the late 1980s, the Gaia movement emerged as one of the environmental groups increasingly influential in national and international politics.Gaia hypothesis
Gaia hypothesis (gī′ə)n.1. A hypothesis stating that Earth's biota constitute a single interconnected system that affects or determines the physical and chemical conditions within the biosphere, including such conditions as global temperatures, the composition of the atmosphere, and the salinity of seawater.2. Any of various related hypotheses stating that this system is self-regulating, as through feedback loops, or that it constitutes a living organism, in either case acting to maintain stable conditions that are optimal for the continuation of life.Gaia is the theoretical opposite of Darwinism; it postulates that living organisms control and modify the relative compositions of the sea, air, and environment |