ZONAL ECOSYSTEMS (NATURE CONSERVATION)
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BTECOSYSTEM TYPES + BIOTOPE TYPES (NATURE CONSERVATION)
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UDC503,126.1
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Descriptor GERZONALE ÖKOSYSTEME (NATURSCHUTZ)
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Descriptor ENGZONAL ECOSYSTEMS (NATURE CONSERVATION)
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Descriptor FREÉCOSYSTÈMES ZONAUX (PROTECTION DE LA NATURE)
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Variant GERÖKOSYSTEME/ZONALE ÖKOSYSTEME (NATURSCHUTZ)
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Variant ENGECOSYSTEMS/ZONAL ECOSYSTEMS (NATURE CONSERVATION)
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Variant FREZONAL/ÉCOSYSTÈMES ZONAUX (PROTECTION DE LA NATURE)
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NTTEMPERATE ZONES (NATURE CONSERVATION)
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NTMEDITERRANEAN REGION (NATURE CONSERVATION)
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NTPOLAR AND BOREAL REGIONS (NATURE CONSERVATION)
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NTTROPICS + SUBTROPICS (NATURE CONSERVATION)