Response of Leaf Functional Traits of Landscape Plants to Urban Green Space Environment in Lanzhou, China

Rong, Huang; Tian, Qing; Zhang, Yue; Wu, Yonghua; Li, Zizhen; Tang, Zitong; Zhou, Anyue

doi:10.3390/f13050682

Cited by 8 publications

(1 citation statement)

References 73 publications

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“…At present, the construction of some greenways suffers from a small radiation of comprehensive benefits, planning does not adequately meet the existing needs of residents, and a lack of humanistic care [5,6]. A scientific and reasonable greenway selection mechanism is an important prerequisite for achieving high-quality greenway construction [7].…”

Section: Introductionmentioning

confidence: 99%

Research on Urban Greenway Alignment Selection Based on Multisource Data

2022

Sustainability

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At present, people’s growing need for a beautiful ecological environment needs to be met. As a high-quality ecological product, greenways help improve the living environment and promote green and coordinated development. How to scientifically and rationally plan greenway routes and expand the green ecological network has become an important issue for the sustainable development of high-density built-up areas. Therefore, this study determines the suitability evaluation system of urban greenway alignment selection based on spatial constructiveness, greenway accessibility, resource attractiveness and public demand through factor analysis. Taking Xixi Wetland to South Lake in Yuhang District as an example, combining urban multi-source data and GIS spatial analysis methods, all routes suitable for greenway construction in the study area were determined, and four excellent greenway routes were initially identified through manual correction. Subsequently, the PSO-BP neural network model was trained using 172 greenway samples to obtain a greenway alignment suitability evaluation model with an accuracy of more than 96%, which was used for subsequent greenway alignment optimization. The above four preliminary greenway routes are substituted into the PSO-BP model to obtain the optimal greenway routes in the study area. The results show that there are 17 indicators in 4 levels and 8 dimensions in the urban greenway route selection potential model, among which two indicators, public cycling and running demand, have a greater weight and should be highly considered in the route selection assessment. The optimal planned route for the greenway start from Guangfu Temple entrance of Xixi Wetland, follow the roadside green belt and Yuhangtang River greenway to South Lake. The study obtained the best planning route for the greenway from Xixi Wetland to South Lake in Yuhang District, which is a new practice of landscape garden planning and design supported by multisource data and new technologies, with a view to providing a reference for the preferential selection of urban greenway routes in similar high-density built-up areas.

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Section: Introductionmentioning

confidence: 99%

Research on Urban Greenway Alignment Selection Based on Multisource Data

2022

Sustainability

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Effects of urban, peri-urban and rural land covers on plant functional traits around Bogotá, Colombia

Salamanca-Fonseca,

Aldana,

Vargas-Martinez

et al. 2023

Urban Ecosyst

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The Global South has suffered an accelerated population and urban growth. This has created multiple impacts at the regional level such as erosion, soil degradation and biodiversity loss, as well as temperature increase in the cities causing urban heat islands. Bogotá, the capital of Colombia, is one of the largest cities in the Global South and in the last five decades has undergone a rapid urban transition, impacting surrounding ecosystems. However, little is known about how urbanization affects the local flora. To understand how plants are responding and adapting to urbanization processes in the city of Bogotá, we used a land cover gradient of urban, peri-urban and rural areas, and four plant functional traits (leaf area [LA], specific leaf area [SLA], leaf dry matter content [LDMC] and wood density [WD]). We analyzed 16 species shared in at least two land covers. Although urban and peri-urban areas had higher temperatures and higher LDMC and lower SLA values than rural areas, there were no significant differences in functional traits between land covers. Some species showed significant changes between land covers, indicating that there is a species-specific response to urbanization. Considering the need for urban areas to prioritize species that promote cooling and exhibit resistance to stress, as well as the capacity to adapt to climate change, it is essential to include plants possessing different combinations of functional traits.

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