Pub Date : 2019-01-02DOI: 10.1080/00167223.2019.1585893
G. Levin, S. Svenningsen
Human activities alter the land surface of the Earth (Haberl et al., 2007; Hurtt et al., 2006), and one key questionwithin geography is, therefore, the assessment of land use/land cover change (LULCC) and the analysis and understanding of the underlying drivers and effects of LULCC (Brandt, Primdahl, & Reenberg, 1999; Bürgi, Hersperger, & Schneeberger, 2004; Plieninger et al., 2016). The last decades have seen amassive andwidespread digitalization of spatial and non-spatial information, which can be linked (and hence geo-referred) to specific spatial units or entities (Fuchs, Verburg, Clevers, & Herold, 2015; Goldberg, Olivares, Li, & Klein, 2014). Digitalization came relatively early to the field of land change science, mainly due to the use of geographic information systems to handle spatial data in the form of maps and remotely sensed data (Haines-Young, Green, & Cousins, 1993). It can, therefore, be argued that a long digital tradition exists within land change science, which has been open to pursue the possibilities of new data sources and methods as these have emerged. Recent years have seen an unprecedented growth in the amount of digital data as well as rapid advances in new digital methods, tools and research infrastructures across academia (Kong, 2015). This includes easy access to spatially specific information from other domains and academic fields, such as register data from government agencies, data from aerial and terrestrial sensors, and a wide range of historical data repositories. Furthermore, as many data sets are available for whole regions, countries or even at global scale, analyses of land change with large geographical coverage and at the same time at high spatial resolutions are increasingly made possible. It can be argued that a new era of digital data has opened up for transdisciplinary interactions for land change research. Yet, increased access to digital data also entails challenges related to the validity of data and the need for new approaches to integrate multiple digital data sources. All five articles in this special issue concern the application of digital data in land change research. In the following sections, we present the articles and discuss them in the wider context of: (1) the sound understanding, interpretation and thus application of digital data and (2) the development ofmethodologies to integratemultiple digital data in a transdisciplinary manner.
{"title":"Digital transdisciplinarity in land change science – integrating multiple types of digital data","authors":"G. Levin, S. Svenningsen","doi":"10.1080/00167223.2019.1585893","DOIUrl":"https://doi.org/10.1080/00167223.2019.1585893","url":null,"abstract":"Human activities alter the land surface of the Earth (Haberl et al., 2007; Hurtt et al., 2006), and one key questionwithin geography is, therefore, the assessment of land use/land cover change (LULCC) and the analysis and understanding of the underlying drivers and effects of LULCC (Brandt, Primdahl, & Reenberg, 1999; Bürgi, Hersperger, & Schneeberger, 2004; Plieninger et al., 2016). The last decades have seen amassive andwidespread digitalization of spatial and non-spatial information, which can be linked (and hence geo-referred) to specific spatial units or entities (Fuchs, Verburg, Clevers, & Herold, 2015; Goldberg, Olivares, Li, & Klein, 2014). Digitalization came relatively early to the field of land change science, mainly due to the use of geographic information systems to handle spatial data in the form of maps and remotely sensed data (Haines-Young, Green, & Cousins, 1993). It can, therefore, be argued that a long digital tradition exists within land change science, which has been open to pursue the possibilities of new data sources and methods as these have emerged. Recent years have seen an unprecedented growth in the amount of digital data as well as rapid advances in new digital methods, tools and research infrastructures across academia (Kong, 2015). This includes easy access to spatially specific information from other domains and academic fields, such as register data from government agencies, data from aerial and terrestrial sensors, and a wide range of historical data repositories. Furthermore, as many data sets are available for whole regions, countries or even at global scale, analyses of land change with large geographical coverage and at the same time at high spatial resolutions are increasingly made possible. It can be argued that a new era of digital data has opened up for transdisciplinary interactions for land change research. Yet, increased access to digital data also entails challenges related to the validity of data and the need for new approaches to integrate multiple digital data sources. All five articles in this special issue concern the application of digital data in land change research. In the following sections, we present the articles and discuss them in the wider context of: (1) the sound understanding, interpretation and thus application of digital data and (2) the development ofmethodologies to integratemultiple digital data in a transdisciplinary manner.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78824504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-02DOI: 10.1080/00167223.2019.1581628
Éva Konkoly-Gyuró, P. Balázs, Ágnes Tirászi
ABSTRACT Landscape is a dynamic, multi-layered, spatial–temporal system. It mirrors the results of human–nature interactions, encompassing both material and perceived reality. Landscape assessment requires transdisciplinarity that we achieve by discussing and combining three approaches: landscape character assessment (LCA), historic land-cover (LC) change analysis and narratives of local residents on landscape perception. The Austro-Hungarian transboundary study area around Lake Fertő, a world heritage cultural landscape, was divided by a state border after First World War. It provides a good example for the divergent evolution of the same biophysical landscape due to the different political and socio-economic influences. Results of the study highlight methodological issues concerning the combination of quantitative and qualitative data and the inclusion of local knowledge in the LCA. The historical cartographic analysis presents the significant differences in LC transition processes in the Austrian and the Hungarian sides of the area, resulting in dissimilarities in landscape character. The study shows the differences in landscape conceptualization and the perceptions of landscape researchers and local residents. Mutual understanding helps communication to preserve the unique landscape qualities and avoid landscape degradation by enhancing environmental awareness and facilitating common landscape management strategies.
{"title":"Transdisciplinary approach of transboundary landscape studies: a case study of an Austro-Hungarian transboundary landscape","authors":"Éva Konkoly-Gyuró, P. Balázs, Ágnes Tirászi","doi":"10.1080/00167223.2019.1581628","DOIUrl":"https://doi.org/10.1080/00167223.2019.1581628","url":null,"abstract":"ABSTRACT Landscape is a dynamic, multi-layered, spatial–temporal system. It mirrors the results of human–nature interactions, encompassing both material and perceived reality. Landscape assessment requires transdisciplinarity that we achieve by discussing and combining three approaches: landscape character assessment (LCA), historic land-cover (LC) change analysis and narratives of local residents on landscape perception. The Austro-Hungarian transboundary study area around Lake Fertő, a world heritage cultural landscape, was divided by a state border after First World War. It provides a good example for the divergent evolution of the same biophysical landscape due to the different political and socio-economic influences. Results of the study highlight methodological issues concerning the combination of quantitative and qualitative data and the inclusion of local knowledge in the LCA. The historical cartographic analysis presents the significant differences in LC transition processes in the Austrian and the Hungarian sides of the area, resulting in dissimilarities in landscape character. The study shows the differences in landscape conceptualization and the perceptions of landscape researchers and local residents. Mutual understanding helps communication to preserve the unique landscape qualities and avoid landscape degradation by enhancing environmental awareness and facilitating common landscape management strategies.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83855427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-02DOI: 10.1080/00167223.2019.1573409
Joan Jurado Rota, M. Y. Pérez Albert, D. Serrano Giné
ABSTRACT This paper analyses visitor monitoring and the public use of protected areas using volunteered geographic information (VGI) as a source of big data and, as the object of study, the Ebro Delta Natura 2000 site (west Mediterranean basin). Over 5,000 voluntarily recorded tracks spread over 10 years have been analysed, showing a predominance of cycling activities on trails of up to 50 km in length. Using cluster analysis and a hotspot approach, we found that the highest intensities of use are concentrated in less than 1% of the area studied, while a high dispersion of track start/finish points suggests low but scattered pressure all over the site. Spatial analysis reveals a number of spatial interactions, including the use of official trails, trespassing on reserves and potential nuisance to birdlife. This information is useful for site managers and helps them design sustainable practices. By applying the same analysis using VGI and data mining to other Natura 2000 sites, comparisons can be made and thus provide valuable assessment regarding visitor monitoring and public use patterns for the largest network of protected areas in the world.
{"title":"Visitor monitoring in protected areas: an approach to Natura 2000 sites using Volunteered Geographic Information (VGI)","authors":"Joan Jurado Rota, M. Y. Pérez Albert, D. Serrano Giné","doi":"10.1080/00167223.2019.1573409","DOIUrl":"https://doi.org/10.1080/00167223.2019.1573409","url":null,"abstract":"ABSTRACT This paper analyses visitor monitoring and the public use of protected areas using volunteered geographic information (VGI) as a source of big data and, as the object of study, the Ebro Delta Natura 2000 site (west Mediterranean basin). Over 5,000 voluntarily recorded tracks spread over 10 years have been analysed, showing a predominance of cycling activities on trails of up to 50 km in length. Using cluster analysis and a hotspot approach, we found that the highest intensities of use are concentrated in less than 1% of the area studied, while a high dispersion of track start/finish points suggests low but scattered pressure all over the site. Spatial analysis reveals a number of spatial interactions, including the use of official trails, trespassing on reserves and potential nuisance to birdlife. This information is useful for site managers and helps them design sustainable practices. By applying the same analysis using VGI and data mining to other Natura 2000 sites, comparisons can be made and thus provide valuable assessment regarding visitor monitoring and public use patterns for the largest network of protected areas in the world.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74363137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-02DOI: 10.1080/00167223.2019.1573408
C. Prinds, R. J. Petersen, M. Greve, B. V. Iversen
ABSTRACT Artificial drainage of agricultural fields represents a major flow path way of both water and nutrients which may contribute to eutrophication issues in the recipient waters. Several studies have shown that riparian lowlands (alluvial plains, wetlands, meadows), if present, may act as buffer zones with high nutrient retention capacities. To assess the fate of water and nutrient flow in riparian lowlands in tile drained catchments, it is essential to know the locations of tile drainage outlets as sources of nutrient input. Using a thermal infrared (TIR) remote-sensing survey, we identified potential tile drainage outlets in a riparian lowland. We also applied a normalized differentiated vegetation index (NDVI) approach to illustrate how tile drainage outlets can be identified with free broadband RGB-NIR data. The positions of identified outlets were validated in the field by visual observation. Our study finds that TIR remote sensing is a strong tool when assessing the sources of water input. NDVI is also applicable, however the background values are very variable making the outlets difficult to locate. The results can be applied in studies of water movement and solute transport via tile drainage as well as model studies where knowledge of input areas through tile drainage is of great importance.
{"title":"Locating tile drainage outlets and surface flow in riparian lowlands using thermal infrared and RGB-NIR remote sensing","authors":"C. Prinds, R. J. Petersen, M. Greve, B. V. Iversen","doi":"10.1080/00167223.2019.1573408","DOIUrl":"https://doi.org/10.1080/00167223.2019.1573408","url":null,"abstract":"ABSTRACT Artificial drainage of agricultural fields represents a major flow path way of both water and nutrients which may contribute to eutrophication issues in the recipient waters. Several studies have shown that riparian lowlands (alluvial plains, wetlands, meadows), if present, may act as buffer zones with high nutrient retention capacities. To assess the fate of water and nutrient flow in riparian lowlands in tile drained catchments, it is essential to know the locations of tile drainage outlets as sources of nutrient input. Using a thermal infrared (TIR) remote-sensing survey, we identified potential tile drainage outlets in a riparian lowland. We also applied a normalized differentiated vegetation index (NDVI) approach to illustrate how tile drainage outlets can be identified with free broadband RGB-NIR data. The positions of identified outlets were validated in the field by visual observation. Our study finds that TIR remote sensing is a strong tool when assessing the sources of water input. NDVI is also applicable, however the background values are very variable making the outlets difficult to locate. The results can be applied in studies of water movement and solute transport via tile drainage as well as model studies where knowledge of input areas through tile drainage is of great importance.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77098317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-02DOI: 10.1080/00167223.2019.1573352
Pernille Cuisy Svensson, M. Pasgaard
ABSTRACT Net negative emissions are essential for realizing the two-degree maximum warming target agreed by the world leaders in Paris 2015 for mitigating predicted climate change impacts, which are often framed as threats to human security, globally and locally. Geoengineering offers an immediate response to climate change which might instantly offset these “dangerous” impacts by deliberately altering the climate system to cool the planet. This arguably places geoengineering experts at the centre of future climate change and security policies. Based on empirical data from interviews with renowned geoengineering scientists, this article explores how these geoengineering specialists label and delimit their work when seeking to claim scientific expertise and autonomy from security politics, while arguing for the relevance of their research on climate change. The study shows an ambiguity between how the geoengineering specialists see the scientific potential of their research, and their unease towards the security applications of this very research. A clear distinction between “geoengineering” and “geopolitics” is drawn and upheld using different rhetorical styles, but dissolves when personal strategies and security politics emerge. On this background, the article discusses the imaginary boundary between (security) politics and (geoengineering) expertise, and suggests more transparent and reflexive science in society.
{"title":"How geoengineering scientists perceive their role in climate security politics – from concern and unease to strategic positioning","authors":"Pernille Cuisy Svensson, M. Pasgaard","doi":"10.1080/00167223.2019.1573352","DOIUrl":"https://doi.org/10.1080/00167223.2019.1573352","url":null,"abstract":"ABSTRACT Net negative emissions are essential for realizing the two-degree maximum warming target agreed by the world leaders in Paris 2015 for mitigating predicted climate change impacts, which are often framed as threats to human security, globally and locally. Geoengineering offers an immediate response to climate change which might instantly offset these “dangerous” impacts by deliberately altering the climate system to cool the planet. This arguably places geoengineering experts at the centre of future climate change and security policies. Based on empirical data from interviews with renowned geoengineering scientists, this article explores how these geoengineering specialists label and delimit their work when seeking to claim scientific expertise and autonomy from security politics, while arguing for the relevance of their research on climate change. The study shows an ambiguity between how the geoengineering specialists see the scientific potential of their research, and their unease towards the security applications of this very research. A clear distinction between “geoengineering” and “geopolitics” is drawn and upheld using different rhetorical styles, but dissolves when personal strategies and security politics emerge. On this background, the article discusses the imaginary boundary between (security) politics and (geoengineering) expertise, and suggests more transparent and reflexive science in society.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2019-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75304348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-13DOI: 10.1080/00167223.2018.1556105
Hanne Van den Berghe, W. Gheyle, N. Note, B. Stichelbaut, M. Van Meirvenne, J. Bourgeois, V. Van Eetvelde
ABSTRACT The surface scars of the First World War (WWI; 1914–1918) are rapidly disappearing due to modern and fast changing landscapes. Therefore, there is a need to monitor landscape relicts that mark our past. This study examines depressions caused by shelling. These shell holes are still present today and are one of the last remains of the military impact during the 4 years long stalemate on the Western Front. Shell hole landscapes are until now overlooked in landscape research and little attention is given to the causes behind the absence or presence of these shell holes in the present-day micro-topography. This paper aims to identify these causes by using digital interdisciplinary techniques on a landscape scale: Light detection and ranging (LiDAR) giving insights into the presence of the shell holes today, landscape maps indicating the evolution of land use/land cover in the past century and a shell hole density map representing the situation of 1918. Results revealed that the WWI shell hole landscape is still abundantly present today, and where it has disappeared, a direct link was found to land use/land cover transformations and the intensity level of cultivated fields from past to present. To work towards a sustainable management of WWI heritage, these findings are indispensable.
{"title":"Revealing the preservation of First World War shell hole landscapes based on a landscape change study and LiDAR","authors":"Hanne Van den Berghe, W. Gheyle, N. Note, B. Stichelbaut, M. Van Meirvenne, J. Bourgeois, V. Van Eetvelde","doi":"10.1080/00167223.2018.1556105","DOIUrl":"https://doi.org/10.1080/00167223.2018.1556105","url":null,"abstract":"ABSTRACT The surface scars of the First World War (WWI; 1914–1918) are rapidly disappearing due to modern and fast changing landscapes. Therefore, there is a need to monitor landscape relicts that mark our past. This study examines depressions caused by shelling. These shell holes are still present today and are one of the last remains of the military impact during the 4 years long stalemate on the Western Front. Shell hole landscapes are until now overlooked in landscape research and little attention is given to the causes behind the absence or presence of these shell holes in the present-day micro-topography. This paper aims to identify these causes by using digital interdisciplinary techniques on a landscape scale: Light detection and ranging (LiDAR) giving insights into the presence of the shell holes today, landscape maps indicating the evolution of land use/land cover in the past century and a shell hole density map representing the situation of 1918. Results revealed that the WWI shell hole landscape is still abundantly present today, and where it has disappeared, a direct link was found to land use/land cover transformations and the intensity level of cultivated fields from past to present. To work towards a sustainable management of WWI heritage, these findings are indispensable.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2018-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86687955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-25DOI: 10.1080/00167223.2018.1537797
Eva Kerselaers, G. Levin
ABSTRACT Worldwide, loss of farmland due to transition to other land uses is recognized as a major challenge. Data from the Land Parcel Identification System (LPIS) are potentially useful to assess agricultural land use dynamics as they contain detailed information on agricultural land use. In this paper, we therefore analyse data from two individual studies, one from Flanders and one from Denmark, to explore whether LPIS data are applicable to assess farmland loss. Our results show that in both Flanders and Denmark, around 4.5% of the total registered farmland area in LPIS was lost in a 5-year period (2008–2013 for Flanders and 2011–2016 for Denmark). Complementary land use data and aerial photo interpretation reveal that the majority of lost registered farmland still was in agricultural use after 5 years. Hence, the confirmed loss was only around 0.5% for Flanders and Denmark. We conclude that both Flemish and Danish LPIS data only with some difficulty are able to quantify loss of farmland and therefore question if LPIS data alone are suitable to assess change in farmland area. The major part of farmland leaving the register is most likely related to a general change in agricultural structure.
{"title":"Applying LPIS data to assess loss of agricultural land – experiences from Flanders and Denmark","authors":"Eva Kerselaers, G. Levin","doi":"10.1080/00167223.2018.1537797","DOIUrl":"https://doi.org/10.1080/00167223.2018.1537797","url":null,"abstract":"ABSTRACT Worldwide, loss of farmland due to transition to other land uses is recognized as a major challenge. Data from the Land Parcel Identification System (LPIS) are potentially useful to assess agricultural land use dynamics as they contain detailed information on agricultural land use. In this paper, we therefore analyse data from two individual studies, one from Flanders and one from Denmark, to explore whether LPIS data are applicable to assess farmland loss. Our results show that in both Flanders and Denmark, around 4.5% of the total registered farmland area in LPIS was lost in a 5-year period (2008–2013 for Flanders and 2011–2016 for Denmark). Complementary land use data and aerial photo interpretation reveal that the majority of lost registered farmland still was in agricultural use after 5 years. Hence, the confirmed loss was only around 0.5% for Flanders and Denmark. We conclude that both Flemish and Danish LPIS data only with some difficulty are able to quantify loss of farmland and therefore question if LPIS data alone are suitable to assess change in farmland area. The major part of farmland leaving the register is most likely related to a general change in agricultural structure.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2018-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74414531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-15DOI: 10.1080/00167223.2018.1528555
Christian Fertner, Andreas Aagaard Christensen, P. S. Andersen, A. S. Olafsson, Søren Præstholm, O. H. Caspersen, Julien Grunfelder
ABSTRACT Profound digitalization of public administration is gaining momentum and spatial planning is no exception. To increase the transparency of planning and its usefulness for public and private actors, planning authorities have integrated production and online distribution of digital plan data within existing planning practices and workflows. Many European countries have established public spatial planning databases. Denmark is one of the forerunners in that digitalization. Since 2006, all legal plans are registered in an open geodatabase including over 34,000 currently effective local development plans. Despite the obvious potential of such data to inform about planning practice and associated outcomes, research using these new data is rare, mainly focusing on technical or judicial aspects. Questions related to planning practice, efficiency, evaluation and design have hardly been looked into. In this paper, we provide a short overview of digital plan data in the Danish database as well as similar data in Nordic countries. We then discuss research perspectives regarding plan evaluation and planning practice and we argue that digital plans represent a new transdisciplinary type of intentionally explicit data source for analysis of land change processes.
{"title":"Emerging digital plan data – new research perspectives on planning practice and evaluation","authors":"Christian Fertner, Andreas Aagaard Christensen, P. S. Andersen, A. S. Olafsson, Søren Præstholm, O. H. Caspersen, Julien Grunfelder","doi":"10.1080/00167223.2018.1528555","DOIUrl":"https://doi.org/10.1080/00167223.2018.1528555","url":null,"abstract":"ABSTRACT Profound digitalization of public administration is gaining momentum and spatial planning is no exception. To increase the transparency of planning and its usefulness for public and private actors, planning authorities have integrated production and online distribution of digital plan data within existing planning practices and workflows. Many European countries have established public spatial planning databases. Denmark is one of the forerunners in that digitalization. Since 2006, all legal plans are registered in an open geodatabase including over 34,000 currently effective local development plans. Despite the obvious potential of such data to inform about planning practice and associated outcomes, research using these new data is rare, mainly focusing on technical or judicial aspects. Questions related to planning practice, efficiency, evaluation and design have hardly been looked into. In this paper, we provide a short overview of digital plan data in the Danish database as well as similar data in Nordic countries. We then discuss research perspectives regarding plan evaluation and planning practice and we argue that digital plans represent a new transdisciplinary type of intentionally explicit data source for analysis of land change processes.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2018-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77142116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-12DOI: 10.1080/00167223.2018.1525303
S. Svenningsen, M. L. Perner
ABSTRACT Urbanization has long been recognized as a major driver for landscape change in the vicinity of major cities and urban systems. Studies of the historical process of urbanization often rely on spatial data or statistics and rarely include detailed historical socio-economic data. This research note aims to emphasize the potential of using digitized cultural heritage data in landscape research. The focus is on how a digital transdisciplinary approach, combining an array of large historical data sets, can provide insights into the link between socio-economic factors and landscape changes at the property level. Using the case of a single farm on the outskirts of Copenhagen, we demonstrate how linked historical data can help reconstruct the urbanization process on a local scale and trace the driving forces of landscape change. The results also suggest that there is enormous potential for landscape research to utilize such historical data.
{"title":"The potential of a digital, transdisciplinary approach to landscape change and urbanization around Copenhagen in the 20th century","authors":"S. Svenningsen, M. L. Perner","doi":"10.1080/00167223.2018.1525303","DOIUrl":"https://doi.org/10.1080/00167223.2018.1525303","url":null,"abstract":"ABSTRACT Urbanization has long been recognized as a major driver for landscape change in the vicinity of major cities and urban systems. Studies of the historical process of urbanization often rely on spatial data or statistics and rarely include detailed historical socio-economic data. This research note aims to emphasize the potential of using digitized cultural heritage data in landscape research. The focus is on how a digital transdisciplinary approach, combining an array of large historical data sets, can provide insights into the link between socio-economic factors and landscape changes at the property level. Using the case of a single farm on the outskirts of Copenhagen, we demonstrate how linked historical data can help reconstruct the urbanization process on a local scale and trace the driving forces of landscape change. The results also suggest that there is enormous potential for landscape research to utilize such historical data.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2018-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83029188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-03DOI: 10.1080/00167223.2018.1495090
K. Sharma, A. Saikia
ABSTRACT Forest canopy density (FCD) is a major factor in the evaluation of forest status and is an important indicator of possible management interventions. The study uses the FCD model with Landsat TM and Landsat 8 OLI images to assess canopy density in India’s Manipur valley and surrounding hills. Normalized difference built-up index (NDBI) was used to extract built-up areas and population density was retrieved from LandScan data, while elevation and slope were obtained from ASTER DEMs (30 m). Four types of canopy density were delineated with crown cover above 71%, 41–70%, 11–40%, below 10% and areas with no canopy cover, that is 0%. A sharp decline in forest area occurred during 1989–2016 at a rate of loss of 2.9 % year-1 with an average rate of deforestation of 3051 ha year-1. Dense forests exhibited remarkable degradation, especially towards the central valley. The variation in the topographical (elevation and slope) gradient resulted in significant differences in the canopy density over the study area barring some hill slopes. Population pressure and various developmental activities in recent decades led to forest degradation in this fragile yet rich Eastern Himalaya biodiversity hotspot.
{"title":"How green was my valley: forest canopy density in relation to topography and anthropogenic effects in Manipur valley, India","authors":"K. Sharma, A. Saikia","doi":"10.1080/00167223.2018.1495090","DOIUrl":"https://doi.org/10.1080/00167223.2018.1495090","url":null,"abstract":"ABSTRACT Forest canopy density (FCD) is a major factor in the evaluation of forest status and is an important indicator of possible management interventions. The study uses the FCD model with Landsat TM and Landsat 8 OLI images to assess canopy density in India’s Manipur valley and surrounding hills. Normalized difference built-up index (NDBI) was used to extract built-up areas and population density was retrieved from LandScan data, while elevation and slope were obtained from ASTER DEMs (30 m). Four types of canopy density were delineated with crown cover above 71%, 41–70%, 11–40%, below 10% and areas with no canopy cover, that is 0%. A sharp decline in forest area occurred during 1989–2016 at a rate of loss of 2.9 % year-1 with an average rate of deforestation of 3051 ha year-1. Dense forests exhibited remarkable degradation, especially towards the central valley. The variation in the topographical (elevation and slope) gradient resulted in significant differences in the canopy density over the study area barring some hill slopes. Population pressure and various developmental activities in recent decades led to forest degradation in this fragile yet rich Eastern Himalaya biodiversity hotspot.","PeriodicalId":45790,"journal":{"name":"Geografisk Tidsskrift-Danish Journal of Geography","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2018-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73890778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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