A hierarchical framework for concepts in physical geography

Gregory, K. J.; Lewin, John

doi:10.1177/0309133318794502

Cited by 13 publications

(14 citation statements)

References 73 publications

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“…Concepts utilized (Table ) have been essential when addressing the problems that require consideration when interpreting river channel changes (Schumm, ), but it is necessary to scrutinize the concepts that have been employed, to ensure that their meaning is consistent, and then reviewed as a basis for further research. The concepts noted (Table ) can be viewed hierarchically, in the way that was suggested for more general use by Gregory and Lewin (), to provide a view of concept structure (Table ). This distinguishes some that are intrinsic to the research, whereas others are extrinsic and may have been adapted from use in several sciences reflecting how multidisciplinary concepts have become more evident.…”

Section: Discussionmentioning

confidence: 99%

“…Research on channel adjustments initially had a tendency to focus on particular types of human impact, perhaps giving insufficient attention to the similarities and differences amongst these impacts and to the recognition of underlying concepts. Concepts defined as “abstract ideas, general notions or units of knowledge that are vital to the development of a reliable science” (Gregory & Lewin, ) are ubiquitous in scientific work (Bocking, ). Gregory and Lewin () have argued that more attention should be given to the way in which concepts are currently presented, together with some consideration of where concepts derive from, including their philosophical and scientific background.…”

Section: Introductionmentioning

confidence: 99%

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Human influence on the morphological adjustment of river channels: The evolution of pertinent concepts in river science

Gregory

2019

River Research & Apps

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Whereas 6 decades ago little attention was accorded to the influence of human activity on affecting river channel adjustment, great progress has been made subsequently, with many contributions published in River Research and Applications. Many concepts have been involved, and this paper considers how they have arisen and developed during a sequence of complementary research stages. The first stage during the 1970s and 1980s, including research by Geoff Petts, involved “recognition of change” and saw the emergence of two separate research strands focused on different timescales: over shorter timescales river channel adjustments affected by the impacts of dams and reservoirs, channelization, land use changes, and urban effects; over longer timescales investigations of river metamorphosis. The second “realization” stage involved significant advances in understanding by considering interaction between these two timescales, more detailed investigations of changing processes, a more holistic catchment‐based approach, and incorporation of ecological changes. These advances led into the third stage, “application” of results, stimulated by analysis of the effects of hard and soft engineering, development of international drivers such as the Water Framework Directive, and concern for what is “natural.” This paper evaluates this sequence of stages, the concepts that have emerged, the extent to which they are consistent and sustainable, and how they can provide the foundation for evaluation of channel adjustments. The effects of urbanization in Fountain Hills, Arizona, USA provide an illustration. Finally, the future requirement for adaptation of existing concepts and the possible development of new ones is briefly considered in the context of global environmental changes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Human influence on the morphological adjustment of river channels: The evolution of pertinent concepts in river science

Gregory

2019

River Research & Apps

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“…Following his (so‐called) retirement in 1998, Ken continued to conduct research on changing river channels with an increasing emphasis on management, restoration, and palaeohydrological themes. At the same time, he maintained his earlier interests in the development of physical geography as a discipline (e.g., Clark et al, 1988; Gregory, 1985, 2000; Gregory & Goudie, 2011) and worked with others to write and edit numerous influential books and papers on this topic (e.g., Gregory & Lewin, 2014, 2015, 2018, 2021). By the end of his life, Ken had published more than 40 books, monographs or special issues of journals, over 50 refereed book chapters, and over 120 papers in international, refereed journals.…”

Section: Research Contributions and Legacymentioning

confidence: 94%

Professor Kenneth John Gregory (1938–2020): The career, contributions and legacy of an eminent geographer and fluvial geomorphologist

Gurnell

Downs

Tooth

et al. 2022

Earth Surf Processes Landf

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This paper provides the editorial to accompany a Special Issue of Earth Surface Processes and Landforms produced to honour the memory of Professor Ken Gregory, a key figure in late 20th‐ and early 21st‐century geography and geomorphology. It provides an overview of Ken Gregory's career in research, teaching, and university administration, and elaborates on his key research contributions and legacy across geography and geomorphology. Ten interrelated research themes are identified where Ken made particular impacts: (1) river catchment processes and process–form relationships; (2) wood in rivers; (3) anthropogenic impacts on rivers and catchments; (4) approaches to river management that better respect natural processes; (5) public perceptions of rivers; (6) quantitative palaeohydrology; (7) chronology of river floods and deposits; (8) key physical geography/geomorphology concepts and their metrics; (9) the nature of the discipline of physical geography; and (10) concepts in physical geography teaching. These themes provide a framework to introduce the papers in this Special Issue. Through his publications, leadership style, personality, and positive influence on the many people with whom he interacted, Ken Gregory has left a legacy that will continue to inspire present and future generations of geographers and geomorphologists.

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“…In physical geography, events such as erosion (E), transport (T) and deposition (D) of material are hierarchal metaconcepts concerning processes at a superordinate level (Gregory & Lewin, 2018). These concepts are used for describing processes involved in the formation of many landforms, including glacial and glaciofluvial landforms.…”

Section: Processes Involved In Their Formationmentioning

confidence: 99%

Swedish 12–13-year-old students’ conceptions of the causes and processes forming eskers and erratics

Arrhenius

Lundholm

Bladh

2020

Journal of Geoscience Education

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This study investigates students' conceptions of the causes and processes that form eskers and erratics, types of glacial and glaciofluvial landforms which to date have been little researched in geoscience education. The data collected for the study included 134 responses to an assignment completed by 12-to 13-year-old students in the Swedish national geography test in 2013. The responses were sampled and analyzed using qualitative content analysis. The findings show that many of the students held alternative conceptions regarding the causes of these landforms, which included landslides, meteor impacts and human activity. Although some students were able to give a scientific explanation that considered the possible causes and relevant processes involved in the formation of erratics, many students did not give a full account of these processes. Furthermore, only a few students were able to describe the relevant processes involved in the formation of eskers and were more likely to discuss alternative or glacial processes rather than glaciofluvial processes. Given the lack of research on students' understanding of glacial processes and landforms in geoscience and geography education, this study contributes with new knowledge of students' conceptions of eskers and erratics and makes a theoretical contribution to research on students' alternative conceptions and understanding of sequential and emergent processes in geoscience. The findings provide specific insights for teachers and are useful in the design of classroom practices that can change alternative conceptions and strengthen scientific conceptions.

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A hierarchical framework for concepts in physical geography

Cited by 13 publications

References 73 publications

Human influence on the morphological adjustment of river channels: The evolution of pertinent concepts in river science

Human influence on the morphological adjustment of river channels: The evolution of pertinent concepts in river science

Professor Kenneth John Gregory (1938–2020): The career, contributions and legacy of an eminent geographer and fluvial geomorphologist

Swedish 12–13-year-old students’ conceptions of the causes and processes forming eskers and erratics

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