Not quite so. The authors of the paper describe Soundscape Ecology as being:
[A]ll sounds, those of biophony, geophony, and anthrophony, emanating from a given landscape to create unique acoustical patterns across a variety of spatial and temporal scales.
And they contrast their definition to Acoustic Ecology by adding:
Acoustic ecology, as introduced by Schafer (1977) and Truax (1999), is seen as complementary to traditional ecological concepts rather than situated within them. Broadly interdisciplinary, acoustic ecology studies the relationships and interactions among humans and sounds in an environment, including musical orchestrations, aural awareness, and acoustic design (Schafer 1977, Truax 1999). Acoustic ecology largely emphasizes human-centered inquiry rather than the larger socioecological systems approach taken here.
The United States National Park Service has an internal division called the "Natural Sounds and Night Skies" group [0] which provides scientific research on the anthropogenic impacts on the sound and light-scapes in US National Parks. They have a particular focus on sounds made by aircraft.
One of the ways they do this is by positioning microphones in fairly hilariously remote places and leaving them there for a while. I have a friend who was an intern with them in Alaska, and got to ride in helicopters to service microphones mounted on glaciers. They have many thousands of hours of audio recordings.
They've published scientific articles quite extensively on this topic [1].
I've been listening to this interview of Gordon Hempton and the whole field is quite fascinating - https://onbeing.org/programs/gordon-hempton-silence-and-the-...