The current approach to urban greening, which often focuses on quantity rather than biodiversity-driven performance

The gap

Evidence profile

Sourced from the stated challenges and future work and stated research gap of the source papers, classified as general, spanning 3 journals.

Supporting evidence — 3 representative gaps

• Study on the Distribution Patterns and Driving Mechanisms of Urban Plant Diversity in Green Building Demonstration and Non-Demonstration Areas of Jinan, China (2026) · Urban Science · doi

  One of the challenges is the high heterogeneity of plant diversity within cities, with different land-use types, vegetation structures, and spatial connectivity collectively determining the ecological suitability of urban spaces for various species. Another challenge is the lack of replication in some urban functional units, which limits the inferential comparisons. The study also acknowledges that species richness does not capture evenness, which is a limitation of the research.

  generalstated challenges
  Keywords: one challenges high heterogeneity plant diversity within cities
• Mixed diversity of spontaneous and landscape plants in urban linear informal green spaces: adaptive configuration patterns and functional evaluation (2026) · Frontiers in Environmental Science · doi

  the into habitat configuration resources, maintaining The significance of this study lies in revealing the important value of plant diversity in urban linear informal spaces and exploring plant strategies based on plant diversity characteristics. The study systematically incorporates IGS plant framework of urban biodiversity configuration conservation and ecological network construction, emphasizing that the mixed planting of self grown plants and garden plants is not only for landscape purposes, but directly contributes to the stability and resilience of the overall urban ecosystem through providing population communication, and enhancing habitat connectivity. The study provides a scientific basis for optimizing urban green space layout and enhancing green space ecological service efficiency by evaluating the functions of different plants in air purification, spatial organization, and other aspects. By evaluating the aesthetic value of plants, a reference for plant configuration patterns is provided for urban greening and beautification, which helps to create urban landscapes with regional characteristics, enhance urban image and residents’ quality of life. For the improvement of IGS in urban planning, a classified plant configuration strategy should be established; The urban management department can formulate the “Technical Guidelines for Plant Configuration of Urban Linear Informal Green Spaces”, clarify the plant selection list, configuration ratio, and maintenance standards for different types of IGS, and promote the transformation of IGS from a “spontaneous state” to a “standardized guidance”. In high- altitude or subtropical cities with climate conditions similar to Kunming, the indicator system and weight structure of this study can be directly referenced; When applying, special attention should be paid to the localization adjustment of the “ecological adaptation and functionality” dimension. in order Looking ahead, we will further explore the node and corridor functions of different types of IGS in regional ecological networks, the differences and commonalities of plant focusing on configuration patterns in different climate zones and urban scales, to construct a more comprehensive and systematic theoretical system of plant configuration. Meanwhile, we fully recognize that Kunming, as a biodiversity hotspot, boasts plant resources that extend far beyond the scope covered by the current recommended list of landscape plants. Subsequent research will further expand the selection of plants, incorporating more

  generalfuture workevidence 5/5
  Keywords: plant urban configuration plants ecological different green habitat resources value diversity linear informal spaces characteristics
• Monitoring the performance of urban green infrastructure: biodiversity challenges and assumptions in Greek Mediterranean cities (2026) · Frontiers in Sustainable Cities · doi

  The paper identifies a gap in the current approach to urban greening, which often focuses on quantity rather than biodiversity-driven performance. It highlights the need for a more nuanced understanding of the role of urban green infrastructure in regulating the local microclimate and enhancing biodiversity. The paper also discusses the lack of standardized indicators and registry tools to make municipal green infrastructure comparable and governable.

  generalstated research gapevidence 5/5
  Keywords: paper identifies gap current approach urban greening often

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