Table 2.
Frequency of naturalness attributes presented in domestic papers (n=26)

	Frequency	Area 1	Area 2	Area 3	Area 4
Free from artificial intervention	23
Natural elements perceived by the landscape	15
Diversity and disturbance in vegetation structure	11
Non-linear geometric shape	11
Vegetation management	10
Abundance of vegetation	9
The harmony of landscape elements	7
Cognition of accumulated time	6
Natural experience in a special way	6
Materials close to nature	6
Contrast with the surrounding environments	3
Biological habitat value	3
Basic functions of nature, such as control and supply	2