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Afon Gwy - United Kingdom |
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Afon Hafren - United Kingdom |
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Allt na Coire nan Con - United Kingdom |
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Alptal-Nitrogen-addition - Switzerland |
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Appennino centro-meridionale: Majella-Matese - Italy |
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Augustendorf intensive forest monitoring site - Germany |
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AusLTER - Jervis Bay Booderee National Park Plot Network - Australia |
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AusLTER - Tropical Rainforest Plot Network - Australia |
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Avdat (AVD) - Israel |
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Beagh's Burn - United Kingdom |