Influence of an Interview Location on Opinions About the Ecosystem Services Provided by Trees

Fig. 1.

Photo 1.

Fig. 2.

Fig. 3.

Fig. 4.

The difference between the number of ecosystem services (ES) indicated indoors (IN) and outdoors (OUT) and the general number of ES in Gdańsk (Gda) and Poznań (Poz), expressed as a percentage of each ES imitated in a given group (IN/OUT/Gda/Poz)_

Ecosystem services	All trees				First tree				Difference between cities
	IN [%]	OUT [%]	Chi2	P	IN [%]	OUT [%]	Chi2	P	Gda [%]	Poz [%]	Chi2	P
Oxygen source	11	11	0.010	0.920	12	12	0.598	0.439	10	11	0.789	0.374
Wind protection	6	6	0.162	0.687	6	6	0.507	0.476	5	8	3.165	0.075
Delivery of fruit and nuts	3	3	0.101	0.751	3	3	0.293	0.588	3	3	0.067	0.796
Tree as witness to history	2	2	0.100	0.752	2	2	0.839	0.360	3	2	0.159	0.690
Supplying wood, branches and leaves	1	2	0.089	0.765	1	2	0.614	0.433	2	1	0.479	0.489
Noise reduction	6	6	0.016	0.899	5	6	0.798	0.372	5	7	1.302	0.254
Impact on aesthetics of space	11	9	3.194	0.079	13	10	1.013	0.314	11	9	2.739	0.098
Educational usefulness	2	3	1.591	0.207	1	3	3.514	0.061	2	3	0.419	0.517
Sense of intimacy, separating from neighbours	5	3	1.790	0.181	4	4	0.031	0.861	5	3	1.070	0.301
Positive impact on health and well-being	9	9	0.010	0.920	9	9	0.318	0.572	9	9	0.061	0.805
Habitat and food source for animals	7	7	0.026	0.872	6	7	0.684	0.408	7	7	0.003	0.958
Regulating air humidity and soil moisture	5	5	0.256	0.613	5	5	0.147	0.701	5	5	0.027	0.869
Strengthening interpersonal bonds	4	3	0.849	0.357	4	3	0.000	0.997	4	3	0.361	0.548
Air purification	9	10	0.265	0.607	10	10	0.648	0.421	9	10	0.436	0.509
Protection against snowdrifts	2	1	0.987	0.320	2	1	0.773	0.379	2	2	0.038	0.845
Place of recreation	9	9	0.016	0.899	8	8	0.754	0.385	9	9	0.001	0.973
Sun protection (shade)	8	10	0.276	0.599	8	10	1.579	0.108	8	10	1.149	0.284

The number of questionnaires given by location_

	Outdoors			Indoors			Total
	Total outdoors	Male	Female	Total indoors	Male	Female
Gdańsk	21	9	12	55	24	31	76
Poznań	20	7	13	22	6	16	42
Total	41	16	25	77	30	47	118