Transformation pathways towards sustainable urban development by the inclusion of peri-urban farmland in green infrastructure strategies

Urbanization and agricultural land use are two of the main drivers of global changes with effects on ecosystem functions and human wellbeing. Green infrastructure is a new and promising approach in spatial planning contributing to sustainable urban development, but rarely considers spatial and functional potentials of utilizable agricultural land as an integral part. This doctoral thesis addresses this gap and investigates how peri-urban farmland can promote green infrastructure and sustainable urban development. The results contribute to the conceptual understanding of urban green infrastructures as a strategic spatial planning approach that incorporates inner-urban utilizable agricultural land and the agriculturally dominated landscape at the outer urban fringe. Four strategies are introduced for spatial planning with the contribution to a strategically planned multifunctional network. Finally, this thesis sheds light on the opportunities that arise from the integration of peri-urban farmland in the green infrastructure concept to support transformation towards a more sustainable urban development. This work concludes that the linkage of peri-urban farmland with the green infrastructure concept is a promising action field for the development of new pathways for urban transformation towards sustainable urban development. Along with these outcomes, attention is drawn to limitations that remain to be addressed by future research.

Social capital as a determinant for raising ecosystem services awareness - an application to an Albanian pastoral ecosystem

This paper aims to map the ecosystem services (ES) provided by a reputed agropastoral ecosystem in the south of Albania and ascertain whether social capital affects the level of importance attributed to them. A perception analysis of both buyers and sellers of ES within the pastoral ecosystem is undertaken. The pastoral ecosystem is mainly evaluated for cultural services such as tradition, enhancing the area’s image, and environment ES. The strong inclination towards cultural ES and socioeconomic services indicates a lack of awareness of both buyers and sellers of ES in the local community regarding the environmental aspects of their ecosystem. However, participants showing a higher radius of trust with high linking social capital are more likely to confer very high importance to environmental services. Similarly, the cultural ES (traditional aspect) of the pastoral ecosystem is affected by cognitive and structural social capital. These are interesting findings for public policymaking concerning the opportunity to develop market transaction ES. Its development is more ground-based and effective if participation and civic engagement, especially the Linking dimension, is enhanced in the pastoral community.

Relationship between parameters of public parks and their surroundings and the richness, diversity and species composition of vascular herbaceous plants on the example of Krakow in Central Europe

Greenery is a natural value in urban space. To maintain the richness and diversity of greenery, it is necessary to understand the factors and mechanisms that influence vegetation. The purpose of this paper was to determine the impact of selected features of public parks and factors on the richness and diversity of herbaceous plants. In Krakow public parks, this richness and diversity is greater in parks with a larger area and habitat heterogeneity, the presence of migration corridors, and natural elements. Full stand coverage negatively affects diversity. Biologically inactive surface affects richness and diversity as well as a number of different groups of plant species. The presence of rare and non-synanthropic species is related to the park’s surface, natural elements, and its heterogeneity.

Online Public Participation Geographic Information System (PPGIS) as a landscape and public use management tool: a case study from the Ebro Delta Natural Park (Spain)

This paper presents a Public Participation Geographic Information System (PPGIS) application conducted in the Ebro Delta Natural Park, Spain. It aims to support decision-making and management activities. The application is based on an online PPGIS questionnaire using Google Maps API. Participants were asked about the spatial and temporal usage while visiting the Natural Park, about their landscape preferences, and appreciations. A set of eight pairs of bipolar adjectives related to landscape characteristics and experience, four items related to public use, and nine to leisure activities were used. In total, 204 valid answers and 3,969 georeferenced opinions were mapped by this case study. The results of this mapping give insights in the use, perception and appreciation of landscape naturalness and aesthetic beauty, accessibility, facilities, services, and signposting. Furthermore, this study discuss the outcomes of mapping the results and how they support the park management with regard to the identification of conflicts, and the need for action. Finally, this study discuss potentials and limitations of PPGIS as a tool for public participation to capture visitors' experiential knowledge in order to optimize and enhance the management of protected areas.

Blue-green infrastructure as a new trend and an effective tool for water management in urban areas

Blue-green infrastructures (BGI) integrate solutions implemented to enhance water management and landscape values for more climateresilient and livable cities. BGI have created an opportunity to renew the natural structure of water balance in cities through the increase in rainwater retention and enlargement of permeable areas. The review of the literature on BGI development and solutions showed that the most popular BGI elements in terms of urban water quantity and quality were rain gardens, green roofs, vertical greening systems, and permeable pavements. Their structure and effectiveness were presented and reviewed. Despite the consensus between researchers that BGI benefit urban hydrology, differences in runoff decreased (2%-100%) lowering the peak flows (7%-70%) and infiltration (to 60%) or evapotranspiration (19%-84%) were reported. Due to an individual technical structure, each BGI element plays a specific role and there is no universal BGI solution against water-related problems. We inferred that the most effective ones were individually adapted solutions, which prevent from a stressor. The greater variety of solutions in a given area, the more benefits for the urban environment. Our analyses showed that a holistic and co-creative approach to create blue-green networks should be considered in modern water management plans.

Are trees and shrubs unsafe hiding places? Impact of plant forms on the perception of danger in urban green spaces in crime hot spots

Urban parks and forests are important for wellbeing, but feelings of unsafety limited their usage. Removal of vegetation from hotspots of fear is sometimes recommended as a means of boosting safety. However such actions should be approached with caution. One explanation, based on prospect-refuge theory, is that plants increase perceptions of danger because of their contribution to a setting’s effectiveness in concealing criminals. It is also believed that people do not like urban green spaces parks containing trees and shrubs that can act as hiding places because of the sense of danger that this vegetation evokes. To test this explanation, participants rated 57 photos of urban parks and forest parks settings park settings on perceived danger, effectiveness of concealment, and landscape preference. In addition, the effectiveness of concealment in the photos was measured assuming that the value of this variable is expressed by the percentage of the pixels occupied by trees and shrubs offering concealment in a photograph. Results confirmed that concealment and danger are highly correlated mediation analysis confirmed that the impact of concealment on preferences can be explained by perceived danger. When the danger was controlled, the efficiency of concealment had no influence on preferences.

Are trees and shrubs unsafe hiding places? Impact of plant forms on the perception of danger in urban green spaces in crime hot spots

Urban parks and forests are important for wellbeing, but feelings of unsafety limited their usage. Removal of vegetation from hotspots of fear is sometimes recommended as a means of boosting safety. However such actions should be approached with caution. One explanation, based on prospect-refuge theory, is that plants increase perceptions of danger because of their contribution to a setting’s effectiveness in concealing criminals. It is also believed that people do not like urban green spaces parks containing trees and shrubs that can act as hiding places because of the sense of danger that this vegetation evokes. To test this explanation, participants rated 57 photos of urban parks and forest parks settings park settings on perceived danger, effectiveness of concealment, and landscape preference. In addition, the effectiveness of concealment in the photos was measured assuming that the value of this variable is expressed by the percentage of the pixels occupied by trees and shrubs offering concealment in a photograph. Results confirmed that concealment and danger are highly correlated mediation analysis confirmed that the impact of concealment on preferences can be explained by perceived danger. When the danger was controlled, the efficiency of concealment had no influence on preferences.

A Rapid Method for Monitoring Landscape Structure and Ecological Value in European Farmlands: the LISA approach

Farmland biodiversity has dramatically declined in European agricultural landscapes over the past century. The key driver of this decline is the intensification of farming practices. In response, various policies have been developed to protect and promote farmland biodiversity, including so-called greening measures under the Common Agricultural Policy(CAP). However, there is currently very little systematically collected data on the ecological quality of European farmland. Therefore, we developed a survey method to provide repeatable and comparable data. This method comprises the mapping of land use and ecological quality of parcels in sample plots of 500 m x 500 m, vegetation transects on up to four predefined parcels in each sample plot and a photo documentation of the transects and the whole plot. Using this LISA method (Landscape Infrastructure and Sustainable Agriculture), we investigated about 25plots in each of 35 regions in 2014 and 13 regions in 2016, altogether in 10 EU countries. The methodology provides a time- and cost-efficient possibility to collect standardised data on the ecological quality of farmland habitats. We show that biodiversity in arable fields is at an extremely low level. The survey methodology proved to be applicable in all parts of Europe and thus being applied widely it could deliver a representative view on the ecological situation of all agricultural landscapes in Europe.

Going local – Providing a highly detailed Green Infrastructure geodata set for assessing connectivity and functionality

Green Infrastructure (GI) defined as a strategically planned network of natural and semi-natural areas is a key strategy in the European biodiversity strategy and the landscape connectivity agenda. To implement this approach in Central Europe’s (CE) landscape planning policies the Interreg project MaGICLandscapes (ML) tried to operationalise the GI concept in CE as well as in nine case studies, to provide land-managers, policy makers and communities with tools and knowledge, at different spatial levels. Based on the example of the Austrian case study area, the aim of this paper is to present an easy to use approach, as implemented in ML, for producing a highly-detailed regional GI database to overcome the difficulty of realising comprehensive biotope mapping surveys as well as the rather coarse resolution of CORINE Land Cover (CLC). By compiling regional cadastral and agricultural information, highly detailed data on the water network as well as Pan-European High Resolution Layers (HRL), this detailed representation of the regional GI network allows to enhance the regional applicability and acceptance of GI initiatives and provides a crucial foundation for assessing GI connectivity and functionality to develop evidence-based strategies and action plans through stakeholder involvement to direct future actions and investment in GI.

Modelling flood regulation ecosystem services dynamics based on climate and land use information

The concept of ecosystem service (ES) identifies benefits that people obtain from ecosystems with contributions to human well-being. One important ES under external pressure is “flood regulation” that describes an ecosystem’s capacity to reduce flood hazards. Several related studies estimate current flood regulation ES. However, regional climate projections indicate a shift in precipitation patterns. Therefore, Climate and land use changes make it necessary to assess future supply in order to test functionality and adaptation measures. This study focuses on surface retention ES. We used two methods to show the relevance of different landscape scenarios and climate information for flood regulation ES supply: 1) hydraulic simulations with the model HEC-RAS 2) the flood retention capacity indicator suggested by the German MAES-Working group. We simulated two events: the historic flood of 2013 and future hypothetically 10% higher water levels. Furthermore, three land use change scenarios were evaluated. The model results indicate water accumulation by vegetation. Higher water levels of future climate scenarios lead to an increase in flooded areas and higher water volumes. To evaluate flood regulation capacities, an approach solely based on 2D retention areas, such as the MAES-indicator, is not sufficient. Modelling approaches deliver the opportunity for future scenario simulations.