1997 Fiscal Year Final Research Report Summary
Study of dynamic state of life-environment system by closed ecosystem experiments
| Project/Area Number |
07458126
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Nihon University |
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Principal Investigator |
MORIYAMA Shigeru Nihon Univ., Dept.Industrial Technology, Professor, 生産工学部, 教授 (80060044)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHARA Mitsuko Nihon Univ., Dept.Industrial Technology, Assistant Professor, 生産工学部, 助教授 (50059424)
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| Project Period (FY) |
1995 – 1997
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| Keywords | closed ecosystem / living system / instability / regulation / Gaia experiment / autopoiesis |
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| Research Abstract |
To study the living system and the dynamics of closed ecosystem (CES) which life creates, we performed 1)The oxygen concentration measurement of the atmosphere, 2)continued CO_2 concentration measurement, 3)the dissolved oxygen concentration measurement of the hydrosphere, 4)ATP concentration measurement, 5)pH measurement, and so on for a long time. The measurements of 1)to 3)were observed continuously for 24hours.
And, the experiment of examining the instability of the living system, the experiment to get the finding of the property toward an open system and a closed system were done.
Those findings are as follows :
CES operate with its own dynamism and oscillations. The CES has a possibility for sudden change by a slight perturbation. It also has a persistently powerful restoring ability. Abrupt anoxia events occurring in the hydrosphere should be noted the most. This indicates that, despite an apparent stable state, there is some kind of instability in the CES.To study the property of such a living system and life theoretically, the development of the life system argument, autopoiesis theory, which will give new logic of the "symbiosis", "milieu", and so on, is necessary.
We believe further research into stability and perturbability behavior of CES, as living systems, are required to understanad the nature of the actual Earth's huge CES.If the results of CES are extrapolated to the Earth, then life and its environment on the Earth form a cooperative system. They are never separated from each other. Current theories for the mechanism of climatic changes do not acknowledge the Earth as a CES.
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Research Products
(6 results)
