Wavelength relative to obstacle size governs sound decay in forests

Evidence

Due to the low frequency qualities of the source, with wavelengths much larger than the individual trunks, this site had a much shorter decay time than the amount of biomass would indicate. — Donald G. Albert, Michelle E. Swearingen, Frank E. Perron, and David L. Carbee, Low Frequency Acoustic Pulse…, 107

Categorization

• SHARE: A tidbit for someone into acoustics or wave physics — counterintuitive that a dense maple thicket deadens sound rather than diffusing it.
• QUESTION: Does the same wavelength-to-obstacle ratio logic explain why high and low frequencies behave so differently in other cluttered media, like urban canyons or underwater kelp?