Chapter
I. Nature Based Strategies for Urban Environment
1.1 Introduction to Urban Sustainability Issues: Urban Ecosystem
Introduction: The Urban Ecosystem
1.2 Ecosystem Services in Urban Environments
The Value of Ecosystem Services
1.3 Incentives for Nature-Based Strategies
Incentive Schemes by Category
Planting for Pollution Abatement
II. Nature Based Strategies and Technologies
2.1 Vertical Greening Systems: Classifications, Plant Species, Substrates
Extensive Systems—Green Facades
Intensive Systems—Living Wall Systems
2.2 Vertical Greening Systems: Irrigation and Maintenance
Drainage and Water Recirculation Systems
Efficient Water Management
Pest and Disease Management
2.3 Green Roofs Classifications, Plant Species, Substrates
2.4 Green Roofs: Irrigation and Maintenance
Safety and Alarm Systems in Green Roof Irrigation Installations
Surface Irrigation Systems
Subsurface Irrigation Systems
Subsurface Drip Irrigation
Subirrigation From Drainage Troughs
Irrigation Using a Perched Water Table
Irrigation of Pitched Green Roofs
Irrigation of Reinforced Pitched Green Roofs
Irrigation of Modular Green Roof Systems
Green Roof Irrigation Automations
Green Roof Irrigation Maintenance
2.5 Green Streets: Classifications, Plant Species, Substrates, Irrigation, and Maintenance
Rain Gardens and Bioswales
III. Nature Based Strategies: Benefits and Challenges
3.1 Vertical Greening Systems to Enhance the Thermal Performance of Buildings and Outdoor Comfort
Differences Between Construction Systems
3.2 Green Roofs to Enhance the Thermal Performance of Buildings and Outdoor Comfort
Differences Between Construction Systems
Climatic Conditions and Plant Species
3.3 Green Streets to Enhance Outdoor Comfort
Outdoor Comfort and Vegetation
Effects of Greenery on Microclimate
Air Temperature and Humidity
3.4 Vertical Greening Systems for Pollutants Reduction
Main Influencing Parameters
Vertical Greening Systems and Particulate Matter
Vertical Greening Systems and Gaseous Pollutants
3.5 Green Roofs for Pollutants’ Reduction
Air Pollutants and Particulate Matter
Carbon Sequestration and Storage
Improving Carbon Sequestration Potential
3.6 Green Streets for Pollutants Reduction
Effects of Greening Solutions and Main Influencing Factors
Approaching the Numerical Modeling of Greenery Performance in Urban Streets
Modeling the Performances of Green Streets for Air Quality Improvement
3.7 Vertical Greening Systems for Acoustic Insulation and Noise Reduction
Differences Between Construction Systems
Influence of Plant Species
3.8 Green Roofs for Acoustic Insulation and Noise Reduction
Green Roof Absorption Characteristics
Sound Diffraction Over Green Roof
Building Geometries of Interest
Diffraction Over Absorbing Surfaces
Numerical Analysis and Parameter Study
Effect of Sound Frequency
Effect of Roof Cover Fraction
Effect of Substrate Layer Thickness
Road Traffic Noise Reduction of Flat Green Roofs
Case Studies: Dry Substrates
Case Studies: Wet Substrates
Large Scale Effects of Green Roofs
Sound Transmission Reduction (Roof Insulation)
3.9 Green Streets for Noise Reduction
Noise Shielding by Hedges and Greenery Barriers
Sound Absorption by Vegetation
Improvement of Urban Soundscape Perception by Vegetation
3.10 Vertical Greening Systems to Improve Water Management
Rain and Gray Water Reuse
Cooling Effect; Evapotranspiration
Wastewater Treatment; Biofilters
3.11 Green Roofs to Improve Water Management
The Impact on Water quality
3.12 Green Streets to Improve Water Management
Benefits of Streets Planting on Stormwater Management
Control and Treatment Components Featured Into Green Streets
Green Streets and Stormwater Management in Cities
3.13 Vertical Greening Systems as Habitat for Biodiversity
The Landscape Configuration
3.14 Green Roofs as Habitats for Biodiversity
Species Diversity Case Studies
Species Richness Results From Selected Case Studies
Connections Between Plant Species Richness and Faunal Benefits
3.15 Green Streets as Habitat for Biodiversity
Green Roofs & Green Walls
Street Trees/The Urban Forest
Swales or Seasonally Wet Ditches
Verges & Grassland/Vegetated Areas
Benefits of Interconnected Greenery to Wildlife
IV. Nature Based Strategies: Social, Economic and Environmental Sustainability
4.1 Vertical Greening Systems: Social and Aesthetic Aspects
Vertical Green Perception in Singapore
A Case of Green Facade Perception Monitoring in Genoa, Italy
4.2 Green Roofs Social and Aesthetic Aspects
Concise History of the Social and Aesthetic Aspects of Green Roofs
The Social and Aesthetic Benefits of Green Roofs
The MOER (Multiobjective Environmental Roof)
4.3 Green Streets Social and Aesthetic Aspects
Impacts of Cities Green Streets on Human Health
Benefits of Vegetation and Natural Environments on Psychological Health
Importance of Everyday Perceived Living Landscape
Environmental Justice and Green Streets
Green Streets’ Recreational Value in Spatial Planning
4.4 Economic Benefits and Costs of Vertical Greening Systems
Private Costs of Vertical Greening Systems
Social Costs of a Vertical Greening System
Private Benefits of a Vertical Greening System
Social Benefits of Vertical Greening Systems
The Use of Sensitivity Analysis for VGS Economic Assessment
4.5 Economic Benefits and Costs of Green Roofs
Individual Benefits of Green Roofs
Energy Reduction in Heating and Cooling
Public Benefits of Green Roofs
Reduction of Stormwater Runoff
Improvement of Air Quality
Mitigation of Urban Heat Island Effect
Increment of Urban Biodiversity
Life Cycle Cost of Green Roofs
Operation and Maintenance (O&M) Cost
Green Roof Cost Benefit Assessment
Net Present Value and Payback Period
Green Roof Policy Initiatives
4.6 Economic Benefits and Costs of Green Streets
The Economic Benefit of Green Streets
Economic Benefits of Other Greenery in Streets
4.7 Life Cycle Assessment of Vertical Greening Systems
Vertical Greening Systems Environmental Burden
Vertical Greening Systems Environmental Benefits
Environmental Impact Assessment
4.8 Life Cycle Assessment of Green Roofs