「生態系」の版間の差分
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→生態系を構築する試み: {{自然}} |
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<!--Ecosystem valuation (of which the most extreme is the attempt to assign the value of Earth) and environmental health measures are usually thought to be part of economics rather than being within the science of ecology. This is because they deal with human perceptions rather than with the ecological system as it exists independently of human observers and "users".-->
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[[Category:生態学]]
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