oligotroofsetes metsamuldades esinev aeglaselt laguneva orgaanilise ainega huumus, mis on selgesti piiritletud ja eristatav tema all asuvast mineraalsest mullakihist
The following instructions and codes are to be adopted by the Member States to complete the common observation form. ... Humus type: 1. Mull; 2. Moder; 3. Mor; 4. Anmor; 5. Peat; 6. Other
