Assessment of Urban Blue-Green Space Landscape Ecological Health Based on the GST-AHP-TOPSIS Composite Model

Table 3

Grey statistical analysis results of the importance levels of landscape ecological health indicators for urban blue-green spaces.

Landscape ecological health (LEH) evaluation criteria for urban blue-green spaces	Preliminary evaluation indicators	Grey decision vector			Importance	Select
		Green space vegetation coverage	: Forest coverage rate	15.00			11.67	3.33	High	Yes
Green space coverage	16.33		11.33	2.33	High	Yes
: Temperature regulation capability	14.33		12.33	3.33	High	Yes
: Air humidity regulation	15.00		12.33	2.67	High	Yes
: CO2 absorption capability	17.00		11.33	1.67	High	Yes
: Green space area distribution	19.00		10.33	0.67	High	Yes
: Urban greening rate	19.67		9.33	1.00	High	Yes
: Floral diversity	1.67		13.00	15.33	Low	No
: Garden coverage	7.00		17.67	5.33	Medium	No
: Lawn coverage	6.67		19.00	4.33	Medium	No
Ecosystem diversity	: Wetland conservation level	14.00	12.67	3.33	High	Yes
	: Diversity index	14.67	13.00	2.33	High	Yes
	Natural landscape integrity	17.00	11.33	1.67	High	Yes
	: Water quality health	16.00	13.33	0.67	High	Yes
	: Habitat area	3.00	11.33	15.67	Low	No
	Endangered species conservation	3.00	8.33	18.67	Low	No
	: Ecosystem services	15.33	12.67	2.00	High	Yes
	: Species richness	16.00	12.67	1.33	High	Yes
Air quality and water quality	: River and lake health	14.33	11.67	4.00	High	Yes
	: Water accessibility	13.67	12.00	4.33	High	Yes
	: Pollutant adsorption	15.67	12.33	2.00	High	Yes
	: Flood risk	4.33	11.33	14.33	Low	No
	: Waste management efficiency	5.67	16.00	8.33	Medium	No
	: Wastewater treatment efficiency	14.67	12.00	3.33	High	Yes
	: Water Quality Index	16.33	11.67	2.00	High	Yes
	: Air Quality Index	15.67	13.33	1.00	High	Yes
Social engagement and health	: Community Health Index	15.00	12.00	3.00	High	Yes
	: Environmental education opportunities	4.33	14.00	11.67	Medium	No
	: Facility maintenance	16.33	11.33	2.33	High	Yes
	: Timeliness of services	13.67	11.67	4.67	High	Yes
	: Public recreational spaces	3.33	16.33	10.33	Medium	No
	: Psychological health improvement	14.67	12.00	3.33	High	Yes
	: Ecological corridor connectivity	17.33	12.00	0.67	High	Yes
	: Public engagement	14.00	11.67	4.33	High	Yes
	: Information disclosure	1.33	12.33	16.33	Low	No
	: Environmental protection	16.67	11.33	2.00	High	Yes