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| land degradation; soil degradation; soil deterioration | |||
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dirvozemio blogejimas : 2 do fraz, 1 tematyki |
| Ochrona środowiska | 2 |
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| |||
| land degradation; soil degradation; soil deterioration | |||
|
dirvozemio blogejimas : 2 do fraz, 1 tematyki |
| Ochrona środowiska | 2 |