The Impact of Urban Green Space Planting Design on Ecological Service Functions:A Case Study of Zhengzhou City
With the acceleration of urbanization,the impact of green space vegetation design on urban eco-system services is becoming increasingly evident,necessitating an exploration for the ecological benefits of photosynthesis,cooling,noise reduction,and dust retention under different plant configuration methods.This study focused on the green vegetation of Century Park,Longhu Park,Wenbo Forest Park,and Peo-ple's Park in Zhengzhou,systematically investigated the effects of different green space plant configura-tions on photosynthetic transpiration rates,cooling,noise reduction,and dust retention capabilities.The aim is to provide a scientific basis for optimizing urban green space design.The research reveals the follow-ing key findings:① Woody plants generally exhibited higher net photosynthetic rates than shrubs,among which the poplar trees showed the highest net photosynthetic rate and maintained a relatively higher level throughout the day.Transpiration rates also showed a similar pattern to photosynthetic rates,with woody plants surpassing shrubs.However,in the midday under intense sunlight,the net photosynthesis and transpiration rates of all vegetation decreased.② In terms of cooling capacity,the combination of lawns and trees was the most effective,and species such as Chinese parasol trees,willows,and elms demonstra-ted significant advantages in cooling.③ For noise reduction,the combination of lawns and trees outper-formed the combination of lawns and shrubs,as well as individual lawns,and willows and Chinese parasol trees performed excellent in noise reduction.④ Regarding dust retention capacity,the combination of lawns and trees significantly reduced the concentrations of PM2.5 and PM10,and trees played a particularly significant role in improving air quality and dust retention.The study highlights the significant impact of green space plant configuration in Zhengzhou on ecosystem services,especially in terms of photosynthesis,cooling,noise reduction,and dust retention.Woody plants,particularly in combination with lawns,ex-hibit distinct advantages.Therefore,when optimizing urban green space design,careful consideration should be given to the planting and configuration of woody plants to maximize the overall ecological bene-fits of green spaces.
urban green spaceplant configurationecosystem servicesZhengzhou City
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NSTL
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