While most usual mathematical methods for evaluation involve statistical approaches, the lattice-theoretical approach is a completely different, non-numerical algebraic and qualitative method, offering the advantages of: (a) providing three-dimensional representations of a landscape's complexity; (b) discovering essential structures of data (termed 鈥渃oncepts鈥? from within landscape data, (c) determining the relative significance (or value) of each criterion and of each land unit for the overall landscape complexity, (d) identifying the land units which are ecologically and geomorphologically more significant for a landscape, (e) mapping landscape complexity and, indeed, mapping total landscape complexity (structural, functional and qualitative) at the land unit level and (f) prioritizing land units in a tropical landscape for strict land management and/or conservation.