Foliar Litter Decomposition: A Conceptual Model with Focus on Pine (Pinus) Litter—A Genus with Global Distribution

Table 1

Some abbreviations, acronyms, and specific terms used in this paper.

Acronym	Meaning
MAT	Mean annual temperature (°C)
MAP	Mean annual precipitation (mm)
AET	Annual actual evapotranspiration (mm) acc. to [2]
PET	Potential evapotranspiration (mm) acc. to [2]
AUR	Acid Unhydrolyzable Residue or gravimetric lignin (refers to different methods, e.g., sulfuric acid lignin, Effland lignin, acid detergent lignin). See; for example, [9, 10].