Mapping Ecosystem Services Research Articles

Urban ecosystem services research in Russia: Systematic review on the state of the art.

Research on urban ecosystem services (ES) covers many regions globally, yet significant gaps remain in several areas, including Russia. Furthermore, the number of publications on Russian ES is still very low, and most of them focus on ES assessment on the national level which results in an incomplete understanding of ES provision in Russiancities. To fill this gap, 197 publications on urban EShave been systematically reviewed. Thosemostly included researchon urban ESin Russia as well as in other cities of the world that represented case studies within international collaborations of Russian scientists with other partners. The paper presents the main aspects of the ES concept adoption and operationalizing in the Russian scientific discourse, by providing an overview of the current research on the relationships between humans and urban ecosystems. Spatially, the majority of studies focused on large cities;herewith field surveys, statistical analysis, expert evaluations, and mappingwere oftenused as the main research methods. Four key challenge areas have been revealed: anthropogenic pressure on soils and vegetation, urban green spaces (UGS) and their quantity and quality for ES provision, thevalue of ES assessment for urban planning, and payments for ES. To address these challenges, future research should focus on the role of urban ES for cityresilience and sustainability, ecosystem disservices, rural-urban interactions, broader testing and validation of ES mapping and assessment as well as better integration of ES in economic, regulatory and compensation mechanisms.

Participatory mapping of uses and ecosystem services as a useful tool for the identification of conflicts in Marine Protected Areas: The case of the Cíes Islands archipelago (NW Spain)

Marine Protected Areas (MPAs) aim to preserve marine natural capital and reduce marine biodiversity loss. However, due to the diversity of objectives in marine planning, their management involves the resolution of conflicts on current uses and ecosystem services. Participatory mapping is a useful technique in MPA's management that uses local knowledge to map ecosystem services and associated conflicts and threats. The goal of this study was to analyse the stakeholders' perception on uses and ecosystem services in the Cíes Islands archipelago, located in the National Park of the Galician Atlantic Islands. Results from semi-structured questionnaires conducted with different stakeholders, indicated that landscape values and marine research were the most valued ecosystem services, although slight differences were found between fishers and other sectors. The activities exerting the highest pressure on the protected area were fishing and tourism. Conflicts were mainly associated with the co-existence of activities within the MPA, potentially threatening conservation goals. Participatory mapping helped to identify MPA management actions to achieve conservation objectives while maintaining current uses and activities in the future.

A Parameter Optimized Method for InVEST Model in Sub-Pixel Scale Integrating Machine Learning Algorithm and Vegetation–Impervious Surface–Soil Model

The InVEST model, with its ability to perform spatial visualization and quantification, is an important tool for mapping ecosystem services. However, the spatial accuracy and simulating performance of the model are deeply influenced by the land use parameter, which often relies on the accuracy of land use/cover data. To address this issue, we propose a novel method for optimizing the land use parameter of the InVEST model based on the vegetation–impervious surface–soil (V–I–S) model and a machine learning algorithm. The optimized model is called Sub-InVEST, and it improves the performance of assessing ecosystem services on a sub-pixel scale. The conceptual steps are (i) extracting the V–I–S fraction of remote sensing images based on the spectral unmixing method; (ii) determining the mapping relationship of the V–I–S fraction between land use/cover type using a machine learning algorithm and field observation data; (iii) inputting the V–I–S fraction into the original model instead of the land use/cover parameter of the InVEST model. To evaluate the performance and spatial accuracy of the Sub-InVEST model, we employed the habitat quality module of InVEST and multi-source remote sensing data, which were applied to acquire Sub-InVEST and estimate the habitat quality of central Guangzhou city from 2000 to 2020 with the help of the LSMA and ISODATA methods. The experimental results showed that the Sub-InVEST model is robust in assessing ecosystem services in sets of complex ground scenes. The spatial distribution of the habitat quality of both models revealed a consistent increasing trend from the southwest to the northeast. Meanwhile, linear regression analyses observed a robust correlation and consistent linear trends, with R2 values of 0.41, 0.35, 0.42, 0.39, and 0.47 for the years 2000, 2005, 2010, 2015, and 2020, respectively. Compared with the original model, Sub-InVEST had a more favorable performance in estimating habitat quality in central Guangzhou. The spatial depictions and numerical distribution of the results of the Sub-InVSET model manifest greater detail and better concordance with remote sensing imagery and show a more seamless density curve and a substantially enhanced probability distribution across interval ranges.

Participatory mapping of ecosystem services of coastal wetlands in Taiwan

AbstractThere is a lack of knowledge and understanding about what ecosystem services are and how to utilize them in a sustainable way. Ecosystem services are thus often underrecognized by the decision makers in charge of creating wetland management plans. Due to this, ecosystem services, which have been used by communities for a long time, are often left out of wetland's wise‐use plans. Inclusion of local communities and promotion of local knowledge are vital aspects of creating sustainable, equitable and resilient wetland management plans that are truly ‘wise’. In this research, we utilize participatory mapping methods to engage communities and create a database of the ecosystem services being used in Chigu Salt Pan Wetland and Chigu Lagoon, located along the coast of Southwestern Taiwan. We look at who are using the ecosystem services, to what degree they are being used and where exactly in the wetland system they are being extracted/utilized. This will pave the way for future researchers to better understand the value of Chigu Salt Pan Wetland and the ecosystem services they provide and promote the use of participatory methods in other locations.

Quantification and mapping of regulating ecosystem services in canola agroecosystems (case study: Gorgan County, Iran).

Regulating services are the advantages that humans receive from regulating ecosystem processes. These services include, but are not limited to pollination, climate regulation, water purification, carbon sequestration, and erosion control. Quantifying and mapping ecosystem services in agroecosystems is one of the main effective actions to increase pay attention to these services and adopt suitable approaches to direct sustainability. The purpose of the study was quantification, and mapping of regulating ecosystem services in canola agroecosystems of Gorgan County, north of Iran. For this purpose, some regulating services such as carbon sequestration, climate regulation, soil microbial respiration, soil aggregate stability, and pollination by insects were evaluated based on the Common International Classification of Ecosystem Services framework. The information and data required for each of these services were collected through field measurements, laboratory experiments, and field surveys. After quantifying, the surveyed services in canola agroecosystems were presented on geospatial maps generated by ArcGIS software, version 10.3. Results showed that agroecosystems in the west and north of the studied region provided the more regulating services. Also, the results of the pollination showed that pollinating insects belonged to four orders and 13 families. The majority of the pollinators were Hymenoptera (44.74%), especially honey bees (Apis mellifera L.), Diptera (5.26%), Butterflies (Lepidoptera; 25%), and the beetles (Coleoptera; 25%), and Anthophora sp. and Andrena sp. were the second and the third most abundant pollinating species after honey bees. Generally, the canola agroecosystems close to the rivers and the natural ecosystems provided more services than other regions.

Mapping and valuation of ecosystem services of mangroves: a detailed study from the Andaman island

Mapping and valuation of ecosystem services of mangroves: a detailed study from the Andaman island

Leveraging plant functional traits in the design of nature‐based solutions: A research agenda

Abstract Nature‐based solutions (NbS) involve interventions that modify ecosystems to enhance multiple ecosystem services (ES). Yet, despite our increasing knowledge of the key role that functional traits play in determining ES, certain types of NbS often do not consider a functional trait perspective. A reason for this lack of translation may be the range of NbS approaches and levels of knowledge of trait–ES relationships. Functional traits may be most useful as targets for NbS design when knowledge on trait–ES mapping is established and the NbS involves a medium or high level of management intervention. A richer understanding of causality in trait–ES and trait–resilience linkages, and context dependency in those linkages, is needed to broaden the application of functional traits in NbS. An improved understanding of trait linkages with cultural ES and how traits interact with stakeholder values to shape NbS uptake would also improve application. Synthesis: A greater consideration of functional traits will increase the efficacy of NbS projects, and could be accelerated by tackling gaps in knowledge about functional traits. Here, we envision a research agenda that both advances NbS design and leverages the varied objectives of NbS to robustly test our knowledge about functional traits.

Connecting forest soil properties with ecosystem services: Toward a better use of digital soil maps—A review

AbstractThe soil supports many ecosystem services (ES) essential to human well‐being. Rapid developments in digital soil mapping (DSM) allow the mapping of soil types and soil properties with improved resolution and accuracy. However, the potential of DSM to improve the assessment and mapping of ES is not fully exploited. To better understand this potential, we synthesized the peer‐reviewed literature. We examined what empirical studies reveal about the role of soil properties in the assessment of four major ES provided by the forest: (I) timber production, (II) soil carbon storage, (III) regulation of water flow and provision of clean water, and (IV) the soil as a habitat for organisms. Results revealed that soil properties are strongly related to the provision of ES. Therefore, using DSM could greatly improve the assessment of the ES provided by forests. Several variables were related to specific ES regardless of region or ecosystem types, but others were found to be situation‐specific (climate and soil type) and need to be considered at the proper scale or within a proper land classification framework. DSM products have the potential to greatly improve the assessment of ES by turning qualitative relationships between soil and ES to quantitative ones. This could also lead to the discovery of new soil–ES relationships. For this potential to be realized, progress should be made in mapping the most crucial soil parameters with greater precision and in promoting the use of soil parameters in ES assessment.

A functional connectivity approach for exploring interactions of multiple ecosystem services in the context of agricultural landscapes in the Canadian prairies

Land-use and land-cover patterns, including their spatial heterogeneity and configuration, are fundamental in shaping landscape-level ecological processes, functions, and services. Despite growing recognition of the importance of these patterns, gaps remain in our understanding of how they influence the functional connectivity of ecosystem services (ES)—a crucial aspect for ecosystem resilience and sustainability. This research aims to bridge this gap by investigating the functional connectivity among multiple ES, such as pollination, carbon storage, soil erosion control, wetland-based ES such as habitat provisioning and water storage capacity from marshes, swamps, and open water wetlands, and agricultural food production within a complex landscape. We define functional connectivity as the extent to which the landscape facilitates or impedes the interactions and interdependencies of ecological processes that combine to create distinct ecosystem services. This definition encompasses the dynamics within a spatially interconnected mosaic of land use and land cover, exemplified by connections such as those from pollination provisioning areas to croplands. The primary goal of this research is to develop an empirical framework that encapsulates ‘network topological’ interactions— essentially, the complex interplay among various components of the ecosystem — specific to agricultural landscapes and then to apply this framework to the Canadian prairies. Our methodology uses the spatial tools including InVEST, ARIES, and GIS to map diverse ES. An ecological network is then constructed for these ES at the landscape scale, designating network nodes based on high-value ES provisioning areas and defining links between pairs of ES according to their functional connections (overlapping and proximal in physical space). These functional connections effectively delineate areas of the landscape where the majority of ES flows occur. Mapping ES connectivity and network building revealed that around 29% of the studied landscape lies within functional connectivity zones for the selected ES, representing hotspots of significant ES interactions. Our findings reveal that although soil erosion-control spans just 1.36% of the total area, a substantial 72.59% of its spatial extent was identified as functionally connected. Land cover analysis in functional connectivity zones revealed that natural habitats such as shrublands, broadleaf forests, wetlands, and grasslands are vital mediators of ES. The variability in ES interconnectivity in the landscape was evident both in the intensity of interactions and observed connections. Our findings, informed by Ecological Network Analysis (ENA), emphasize the need for integrating connectivity and systems thinking in conservation sciences to achieve sustainability and ecosystem resilience. The insights offer a foundation to explore optimal ES provisioning scenarios at the landscape scale.

Mapping ecosystem service temporal trends: a case study of European wood potential, supply and demand between 2008 and 2018

Wood is one of the key forest Ecosystem Services (ES) of growing ecological, social and economic importance; therefore, we need more precise information about its long-term usage. To achieve this, it is necessary to examine the spatio-temporal aspects of wood ES potential, supply and demand. In this study, we analyse spatio-temporal patterns of wood ES supply and demand at continental, national and regional scales to identify areas of increasing and decreasing supply and demand levels in Europe. In addition, we present background information about the potential of European forests to provide wood ES and its relationship to supply and demand. Our results showed that the overall European wood supply and demand as well as the wood ES potential were characterised by increasing trends. Furthermore, this increase was also regional, particularly in central and northern Europe. This study demonstrates not only the significance of spatio-temporal data in ES mapping, but also the importance of considering a broader range of components of the ES cascade model when assessing change. Our research has shown that potential, supply and demand can all increase in the same area, but also that low supply and demand do not guarantee wood potential growth. In addition, we found that a broad scale assessment helps to identify more general patterns and trends, but analysing data at a more accurate scale provides more comprehensive insights for identifying areas that may require targeted action for sustainable forest management.

A social-ecological approach for identifying and mapping ecosystem service trade-offs and conservation priorities in peri-urban areas.

Considering both ecological and social dimensions in the assessment of ecosystem services (ESs) can facilitate acceptable and inclusive management strategies, especially in peri-urban areas characterized by intricate human-ecosystem interactions. A limited body of research, however, has mapped the plural values of ESs and their different types of trade-offs in such areas. This research aimed to execute an interdisciplinary analysis of the biophysical and social values of ESs in peri-urban Shanghai, China, through a social-ecological approach that integrates spatial biophysical assessment with participatory mapping. Trade-off analysis in both ES types and ES valuations were then conducted, and multicriteria decision-making was applied for conservation. Our results reveal that trade-off intensities were lower within the social values compared to the biophysical values. Within both value dimensions, relatively stronger trade-offs were found between food production and other ESs. Areas with both high biophysical and social values were infrequently observed across ESs. Based on the characteristics of diverse values, our study identified priority conservation areas and provided management implications. We argue that adopting the integrated social-ecological perspective in sustainable environmental management contributes to the realization of harmonious coexistence between people and nature in peri-urban areas.

Ecosystem services provided by green areas and their implications for human health in Brazil

Green areas provide numerous ecosystem services (ES) that are essential for human well-being, such as climate regulation, air quality regulation, disease regulation, and recreational opportunities. In this study, we assessed the ecosystem services provided by green areas and their implications for human health in Brazil. Considering emerging problems in Brazil, such as population growth, the health crisis, and the increase in deforestation, ES mapping is essential to understand barriers and diagnose strategies for promoting the health and well-being of the Brazilian population. Using remote sensing data and geographic information systems, we evaluated the Green Areas Ecosystem Services (GAES), composed of i) the provision of green areas; ii) regulation of air quality; iii) climate regulation; iv) diseases regulation (cardiorespiratory); and v) cultural services, including recreation, sports, and ecotourism. Our findings suggest that green areas in Brazil provide a considerable amount of ecosystem services that are relevant to human health. Over 70 % of Brazil exhibited GAES values exceeding 0.5 (relative scale ranging from 0 to 1). This indicates that a significant portion of the Brazilian population has access to green spaces that provide important services, such as air and water purification, climate regulation, and disease regulation. The mean GAES value for the entire country was 0.78, with notable regional variations. The highest GAES was found in regions dominated by the Amazon Forest (GAES = 0.81), while the smallest offers of GAES are in the northeast (GAES = 0.40) and south (GAES = 0.41) regions of the country The type of vegetation was an important factor in the regulation of climate and air quality. However, factors such as population density and urbanization interfere with the regulation of diseases. Considering the 10 states with the highest and lowest per capita income and population density, the state of Rio Grande do Sul, located in the South region, had the highest mean GAES value; while the state of Acre, in the North region, had the lowest. Our findings suggest that interventions to improve green area provision and quality may be most effective in the northeast and South regions of Brazil. This is indicative of the observed lower GAES provision in these regions, primarily attributed to elevated urbanization levels leading to the conversion of green areas into urban zones. Overall, our study highlights the importance of green areas for human well-being and provides valuable information for policymakers to prioritize interventions to improve GAES provision across Brazil.

Photo-able Urban Green-Blue Spaces

Urban green–blue spaces (UGBSs) are increasingly integrated into the urban fabric transformation, playing a pivotal role in shaping everyday interactions and experiences with nature in the Anthropocene era. Crowdsourcing, facilitated by digital technologies, has emerged as a novel methodological advance for accessing subjective place-based information, allowing the public to produce and share photographs at an unprecedented scale. As people can now readily capture and disseminate images on social media from virtually any location, these photographs contribute to the digital representation of places. Many studies have leveraged social media imagery to explore mental maps of cities, place perceptions, and ecosystem services. This raises fundamental questions: What are the UGBSs that promote photography across cities? What are the similarities and differences among cities’ photogenic UGBSs? And how do cities’ photogenic UGBSs relate to the happiness of their inhabitants? This study investigates these questions through an analysis of 203,020 photographs, taken from social media, of sites across 186 cities over a five-year period (2014 to 2018). Employing Google Cloud Vision and topic modelling with a state-of-the-art neural network model, photographs are clustered and used to identify cross-city features. The correlation between prevalence of photogenic UGBSs and levels of happiness is investigated using linear regression analysis. The results show that UGBSs eliciting photography practice are predominantly characterised by water-related subjects, confirming a widespread aesthetic appreciation for urban blue spaces. Perceptions of UGBSs exhibit significant variability among cities, offering a metric to assess environmental policy efficacy. Lastly, a positive association is found in high-income contexts between number of social media photographs of UGBSs and subjective well-being, while this correlation is not significant in middle- and low-income contexts. This sheds light on human–nature relationships by providing global evidence of how aesthetic appreciation of urban nature influences human well-being.

Identifying priority areas for conservation: using ecosystem services hotspot mapping for land-use/land-cover planning in central of Iran.

The modeling and mapping of hotspots and coldspots ecosystem services (ESs) is an essential factor in the decision-making process for ESs conservation. Moreover, spatial prioritization is a serious stage in conservation planning. In the present research, based on the InVEST software, Getis-Ord statistics (Gi*), and a set of GIS methods, we quantified and mapped the variation and overlapping among three ESs (carbon storage, soil retention, and habitat quality). Furthermore, an approach was proffered for detecting priority areas to protect multiple ecosystem services. Hotspots recognized via the Gi* statistics technique contain a higher capacity for supplying ESs than other areas. This means that protecting these areas with a bigger number of overlapped hotspots can provide more services. Results indicated that population growth accompanied by the increase in construction sites and low-yield agricultural lands in the Zayanderood dam watershed basin has resulted in ES losses. This situation is represented by increasing soil erosion, reduced carbon storage, reduced biodiversity, and fragmented habitat distribution due to land-use change. The statistically significant carbon storage, soil retention, and habitat quality hotspots with above 95% confidence level account for 21.5%, 39.3%, and 16.9% of the study area, respectively. Therefore, a clear framework was presented in this study for setting ES-based conservation priority. Decision makers and land-use planners can also combine this technique into their framework to identify and conserve ES hotspots to support their targeted ecosystem policies.

Assessing And Mapping Ecosystem Services In A Tropical Seasonal Forest Landscape

Os levantamentos de serviços ecossistêmicos oferecem bases para o entendimento de como funções e processos ecossistêmicos contribuem com seus benefícios para o bem-estar humano. Na América do Sul, os ecossistemas florestais representam uma importante fonte desses serviços, sendo pouco conhecida a dinâmica espacial destes serviços dentro do bioma Caatinga (tropical dry forest). Esta pesquisa teve como objetivo avaliar os serviços ecossistêmicos prestados por um ambiente de floresta tropical estacional montana (FTEM) na região Nordeste do Brasil. Os serviços foram classificados (CICES) e espacializados segundo sua relevância com base em de dados de sensoriamento remoto. A cobertura vegetal da Serra João do Vale presta serviços ecossistêmicos de “Provisão” (91,45% da área estuada presta serviços de “Alta capacidade relevante”) e “Cultural” (95,85% prestam serviços de “Capacidade relevante muito alta”), direta e indiretamente, por meio das relações culturais com o componente vegetal e faunístico. Já para os serviços de “Regulação e manutenção” analisados, observou-se que há uma relação entre os ambientes florestais, declividade e atividades humanas. Foi constatado que as áreas pouco declivosas recobertas por FTEM apresentam entre 0 a 5 t.ha-1.ano-1 de perdas de solos e ocupam 15% da área de estudo. Para estas áreas foi atribuído à classe “Capacidade relevante muito alta”. No outro extremo, foi registrada perda de solo que supera as 200 t.ha-1.ano-1, atingindo o máximo de 3.056,8 t.ha-1.ano-1. Por fim, os serviços obtidos para a área de estudo integram-se para caracterizar o modo de vida e as relações entre as comunidades rurais ali presentes.

Expectations of i-Tree Eco as a tool for urban tree management in Nordic cities

While urban forests are recognized as imperative toward climate adaptation in cities and provide health and recreational benefits to citizens, municipal tree officers often struggle to find successful governance arrangements and budget support toward long-lasting investment and implementation in new planting schemes and protection of existing trees. Since its release in 2006, i-Tree Eco has helped urban tree officers worldwide to find tangible leverage in the means of quantitative mapping, numeric measures, and economic values of ecosystem services. This may in turn help ease gridlocks and potentially support constructive dialogues across sectors, with decision-makers and public engagement. With the release of i-Tree Eco v. 6 in Europe 2018, 13 Nordic cities were engaged in a larger research project with ambitions to use i-Tree Eco for the purpose of retrieving numeric and monetary data of the biophysical structures and ecosystem services of the urban forest. Based on questionnaires and semi-structured interviews, we present the results from the Nordic i-Tree project with a focus on expectations, opportunities, and potential barriers experienced in using i-Tree Eco in urban forest management. The most prominent expectation and foreseeing opportunities were recognized toward using numeric information on trees to change policies and support cross-sectoral collaboration while reaching politicians and the public. Identified barriers involved how limited resources are spent on public outreach and how information about the project to relevant stakeholders were not distributed from the beginning which may have implications on the dissemination of results. As some important ecosystem services, e.g., cultural services, are not captured by i-Tree Eco, presenting the partial value of urban trees may pose also potential risks to cross-sectoral collaboration. Other findings conclude that although numeric information on ecosystem services is seen as beneficial in terms of communicating with different stakeholders, a deeper understanding toward the criteria used in the valuation process and the potential risks of numeric approaches may provide more context-specific applications.

National mapping and assessment of ecosystem services projects in Europe – Participants’ experiences, state of the art and lessons learned

Backed by the Biodiversity Strategy to 2020 and 2030, numerous ‘Mapping and Assessment of Ecosystem Services’ (MAES) projects have been completed in recent years in the member states of the European Union, with substantial results and insights accumulated. The experience from the different approaches is a valuable source of information for developing assessment processes further, especially with regard to their uptake into policy and more recently, into ecosystem accounting. Systematic approaches towards best practices and lessons learned from national MAES projects are yet lacking. This study presents the results of a survey conducted with participants of national MAES projects overviewing 13 European MAES processes. Focus hereby is put on the types of methods used, the assessed ecosystem services, and the perceived challenges and advancements. All MAES projects assessed ecosystem services at several levels of the ecosystem service cascade (69% at least three levels), using a diverse set of data sources and methods (with 4.7 types of methods on average). More accessible data was used more frequently (e.g., statistical and literature data being the most popular). Challenges regarding policy uptake, synthesizing results, and data gaps or reliability were perceived as the most severe. Insufficient evaluation of uncertainty was seen as a major critical point, and emphasized as crucial for uptake and implementation. Moving towards accounting for ES in the frame of environmental-economic accounts, considering uncertainties of ES assessments should be even more important.

Mapping ecosystem service clusters and exploring their driving mechanisms in karst peak-cluster depression regions in China

Understanding the intricate interrelationships among ecosystem services (ESs) and exploring their driving mechanisms are prerequisites for their efficient management. The southwestern karst region is a typical ecologically fragile area and a crucial component for establishing an ecological security barrier in southern China. We aimed to evaluate the relationship between ESs and the concept of ecosystem service bundles (ESBs) and explore the distribution of ESs and their interrelationships. Using methods, such as Spearman's correlation and spatial autocorrelation analysis, this study focused on the karst peak-cluster depression region in southwestern China to analyse the trade-offs and synergistic effects among 12 ESs. Additionally, this study used the self-organizing map to identify ESBs and used the Random Forest model to explore the potential driving factors influencing the distribution patterns of ESs. The results indicated a spatial clustering effect among the 12 ESs, whereby provisioning and cultural services had the most significant clustering effect (Moran's I > 0.8). A total of 25 pairs of ESs exhibited synergistic effects, and 31 pairs showed trade-off effects. Food production showed a trade-off with both regulatory and supporting services, whereas ESs within the same category tended to exhibit synergistic effects. The distribution and interrelationships of ESs are influenced by natural and social factors, such as climate, topography, and human activities, resulting in the formation of six ESBs. This study enriches the understanding of the relationship of ESs and will contribute to the coordinated development of resources and the environment in the karst peak-cluster depression region of southwestern China.

Integrated mapping of ecosystems and assessment of forest ecosystem services at river basin scale

Ecosystems provide various goods and services to society and their valuation is among the main objectives of the concept of ecosystem services (ES). The mapping of ecosystems is the main building block of the whole process of the Mapping and Assessment of Ecosystems and their Services (MAES). The analyses of the ecosystem data produced during the implementation of the national methodology for mapping ecosystems in Bulgaria (MAES BG) reveal some problems that may cause confusion in cases of integrated assessment of all ecosystem types. In this paper, we present an approach that enables formulation of a uniform spatial dataset based on the mapping of the main ecosystem types, that can be used for mapping of ES at a river basin scale. It has been applied to the upper part of the Ogosta River basin and the result is a topologically correct uniform spatial data layer. The approach gives one possible solution to problems related to the different sources of information and the discrepancies between ecosystem types in the national mapping of ecosystems in Bulgaria. It is based on the use of a uniform spatial framework that outlines the ecosystem types and sets the initial database for further mapping. This ensures a topologically correct spatial dataset for the ecosystems and a background for further updates for each ecosystem at the different levels of MAES typology. The most appropriate spatial basis for the territory of Bulgaria is the database for the physical blocks of the Ministry of Interior. Its application to the studied river basin gives encouraging results and can be used as an example for similar areas. Further development of the approach will ensure the mapping of the forest ecosystems at level 3 of the MAES BG typology and more precise delineation of the grassland, heathland, freshwater, and sparsely vegetated ecosystems.

Mapping and assessment of lake ecosystem services in Lithuania

Lakes provide essential Ecosystem Services (ES) that support human well-being. However, due to anthropogenic environmental degradation, lake ecosystem conditions and related ES supply are affected. To assess these impacts and ES supply alterations, mapping and assessing lake ES is key. Spatiotemporal lake ES studies are lacking, especially at the national scale. In this study, we mapped and assessed lake ES nationally in Lithuania. In total, 1032 lakes were considered. The supply of five ES were studied in 1990, 2000, 2006, 2012, and 2018: 1) fibres and other materials for construction (fibres ES); 2) water for non-drinking purposes (water ES); 3) the maintenance of nursery populations (nursery ES); 4) the maintenance of freshwater chemical conditions (nutrient regulation ES), and 5) direct and indirect cultural outputs (recreation ES). For fibres ES, an increase over time was observed, following an increase in reed areas around the lakes. The results showed that significant differences among periods were identified in all ES except for water ES supply. Generally, the supply of fibres, nutrient, nursery and recreation ES increased between 1990 and 2018. Spatially, the north-eastern, central and easternmost parts of Lithuania showed a high supply of multiple ES (e.g., fibres ES, nutrient ES), while the western parts of the country were seen as essential for nursery ES supply. Except for water ES supply, all ES showed a clustered pattern. The hot–cold spots identified followed the areas of high and low ES supply. Bundle analysis identified three clusters. Recreation ES supply was not associated with fibres, nursery, nutrient, and water ES supply. Fibres, nursery, and nutrient ES supply were not related to water ES supply. The results obtained in this work are critical for better management and help to identify lakes that supply high and low ES.