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"Mountain mapping Social aspects."
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Mapping mountains
Mountains appear in the oldest known maps yet their representation has proven a notoriously difficult challenge for map makers. In this essay, Ernesto Capello surveys the broad history of relief representation in cartography with an emphasis on the allegorical, commercial and political uses of mapping mountains. After an initial overview and critique of the traditional historiography and development of techniques of relief representation, the essay features four clusters of mountain mapping emphases. These include visions of mountains as paradise, the mountain as site of colonial and postcolonial encounter, the development of elevation profiles and panoramas, and mountains as mass-marketed touristed itineraries.
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Accelerated increase in plant species richness on mountain summits is linked to warming
Globally accelerating trends in societal development and human environmental impacts since the mid-twentieth century
1
–
7
are known as the Great Acceleration and have been discussed as a key indicator of the onset of the Anthropocene epoch
6
. While reports on ecological responses (for example, changes in species range or local extinctions) to the Great Acceleration are multiplying
8
,
9
, it is unknown whether such biotic responses are undergoing a similar acceleration over time. This knowledge gap stems from the limited availability of time series data on biodiversity changes across large temporal and geographical extents. Here we use a dataset of repeated plant surveys from 302 mountain summits across Europe, spanning 145 years of observation, to assess the temporal trajectory of mountain biodiversity changes as a globally coherent imprint of the Anthropocene. We find a continent-wide acceleration in the rate of increase in plant species richness, with five times as much species enrichment between 2007 and 2016 as fifty years ago, between 1957 and 1966. This acceleration is strikingly synchronized with accelerated global warming and is not linked to alternative global change drivers. The accelerating increases in species richness on mountain summits across this broad spatial extent demonstrate that acceleration in climate-induced biotic change is occurring even in remote places on Earth, with potentially far-ranging consequences not only for biodiversity, but also for ecosystem functioning and services.
Analysis of changes in plant species richness on mountain summits over the past 145 years suggests that increased climatic warming has led to an acceleration in species richness increase.
Journal Article
High aboveground carbon stock of African tropical montane forests
Tropical forests store 40–50 per cent of terrestrial vegetation carbon1. However, spatial variations in aboveground live tree biomass carbon (AGC) stocks remain poorly understood, in particular in tropical montane forests2. Owing to climatic and soil changes with increasing elevation3, AGC stocks are lower in tropical montane forests compared with lowland forests2. Here we assemble and analyse a dataset of structurally intact old-growth forests (AfriMont) spanning 44 montane sites in 12 African countries. We find that montane sites in the AfriMont plot network have a mean AGC stock of 149.4 megagrams of carbon per hectare (95% confidence interval 137.1–164.2), which is comparable to lowland forests in the African Tropical Rainforest Observation Network4 and about 70 per cent and 32 per cent higher than averages from plot networks in montane2,5,6 and lowland7 forests in the Neotropics, respectively. Notably, our results are two-thirds higher than the Intergovernmental Panel on Climate Change default values for these forests in Africa8. We find that the low stem density and high abundance of large trees of African lowland forests4 is mirrored in the montane forests sampled. This carbon store is endangered: we estimate that 0.8 million hectares of old-growth African montane forest have been lost since 2000. We provide country-specific montane forest AGC stock estimates modelled from our plot network to help to guide forest conservation and reforestation interventions. Our findings highlight the need for conserving these biodiverse9,10 and carbon-rich ecosystems.
Journal Article
Mountain Ecosystem Services: Who Cares?
Mountain regions provide diverse goods and services to human society. At the same time, mountain ecosystems are sensitive to rapid global development. Over the past 2 decades the number of papers mentioning “ecosystem services” (ESS) has risen exponentially. While the concept holds great potential to improve the societal relevance of conservation efforts, it is at risk of dying of misuse and reduction to a buzzword. The definitions of the term often compete and the utility of the concept is under debate. The present article reviews the literature on mountain ESS to investigate whether the term was understood correctly by the community, and addresses the question whether ESS is a suitable concept to protect mountain regions. We link land use and other physical properties of terrestrial ecosystems with their capacity to provide ESS with a view to mapping the global supply of ESS and we contrast it with population density data as a proxy for the demand for ESS. The spatially explicit assessment shows that we can distinguish between mountain areas where demand and supply are well balanced from mountain areas where demand and supply are unbalanced. For these different types of mountain regions we suggest different approaches to package the concept of ESS into spatial decision-making.
Journal Article
Understanding the Spatial Distribution of Ecotourism in Indonesia and Its Relevance to the Protected Landscape
Ecotourism, a dynamic force in global tourism, holds promise for conserving the environment while ensuring benefits for local economies. In this study, we developed an ecotourism distribution map of Indonesia. We utilized location-based social networks (LSBNs) data derived from Google Maps API to map 172 ecotourism sites in Indonesia. Furthermore, we investigated the distribution patterns of ecotourism within Indonesia’s protected landscapes and ecoregions. The factors that influenced ecotourism distribution in the region were analyzed using the MaxEnt model (because of its application for presence-only data). The key findings revealed that ecotourism sites are predominantly distributed across national parks and protected forest areas, and generally consist of mountainous and hilly terrain according to the ecoregion types. The MaxEnt model results indicated that population density was the most influential factor in ecotourism distribution. The significance of our study lies in its methodologies and results, which offered novel approaches to nationwide mapping and addressed the lack of an ecotourism site map of Indonesia. Notably, the proposed model can be customized for other regions with limited ecotourism data; thus, our study can serve as a foundation for future interdisciplinary studies on ecotourism, sustainability, and landscape planning.
Journal Article
User-Relevant Land Cover Products for Informed Decision-Making in the Complex Terrain of the Peruvian Andes
Land cover in mountainous regions is shaped by a complex web of stressors arising from natural and anthropogenic processes. The co-design process implemented with regional stakeholders in this study highlighted persistent data gaps and the need for locally relevant (thematic, spatial, and temporal) data products, which global alternatives still fail to deliver. This study describes the development of a land cover database designed for the Junín National Reserve (JNR) in Peru as a precursor of a broader effort designed to serve Andean wetland ecosystems. The products were created using Random Forest models leveraging Sentinel-1 and Sentinel-2 data and trained using a large database of in situ data enhanced by the use of high-resolution commercial imagery (Planet). The land cover basemap includes eight classes (two of vegetation) with an overall accuracy of 0.9 and Cohen’s Kappa of 0.93. A second product further subdivided vegetation into locally meaningful vegetation classes, for a total of four types (overall accuracy of 0.85). Finally, a surface water product (snapshot and frequency) delivered a representation of the highly variable water extent around Lake Junín. It was the result of a model incorporating 150 Sentinel-1 images from 2016 to 2021 (an overall accuracy of 0.91). The products were successfully employed in identifying 133 ecosystem services provided by the different land cover classes existing in the JNR. The study highlights the value of participatory monitoring and open-data sharing for enhanced stewardship of social-ecological systems.
Journal Article
Mapping Food Systems: A Participatory Research Tool Tested in Kenya and Bolivia
Food system research requires an understanding of system actors and activities. To this end, we codesigned and conducted a food system mapping process in 2 regions, one in Kenya and the other in Bolivia, that stretches from mountains to lowlands and involves sites of interconnected food system strategies related to these habitats. We adapted an existing method of mapping local food webs to an approach that subdivides food systems into 4 subsystems: operational, political, information and services, and natural resources. Through the mapping process, a group of local and external researchers and practitioners identified the most important food value chains in the study areas. They also identified the value chains' reach, as well as related actors; flows of knowledge, information, and finance; and the natural resources the food systems depend on. A power/interest matrix complemented the mapping results with information about different actors' roles in the food systems; this can help to identify the best target groups and entry points for efforts to improve the sustainability of food systems in the diverse habitats forming part of these food systems. Mapping and a brief analysis of actors and interests are first steps toward assessing the sustainability of a food system. The participatory nature of our approach enhanced coordination between projects of research and practice and helped to increase the relevance and applicability of the mapping results and related activities.
Journal Article
Accessibility of Primary Schools in Rural Areas and the Impact of Topography: A Case Study in Nanjiang County, China
In recent years, many developing countries have consolidated rural primary schools, closed small community schools, and enlarged centralized schools, which can reduce the accessibility of education to many communities. Meanwhile, expanding road networks may enable people in far-flung communities to access schools more easily. To evaluate the impacts of both trends on spatial justice in access to education, it is important to examine spatial patterns of primary school accessibility and their predictors. How do the topographic features of villages and surrounding landscapes correlate with primary school accessibility in rural upland areas? Using a digital map route planning application, this study evaluates the primary school accessibility of each village in Nanjiang County, a mountainous county in southwest China. By evaluating relationships between primary school accessibility and village characteristics, this study provides evidence corroborating frequent claims that rural remote mountainous areas have poor primary school accessibility. Additionally, by analyzing the effects of elevation and ruggedness of villages and of the zone between villages and schools as well as the mechanisms driving these effects, we find that, contrary to expectations, with increasing village elevation, a village’s primary school accessibility first decreases and then increases. The ruggedness of the terrain upon which a village is built has no significant effect. The ruggedness of the zone between a village and its nearest school exerts significant effects. These findings demonstrate that the two policies have created a pattern of spatial injustice that disadvantages peripheral villages, illustrating the need to attend to topography in efforts to provide equitable school access in rural mountainous areas.
Journal Article
Resilience of Terraced Landscapes to Human and Natural Impacts: A GIS-Based Reconstruction of Land Use Evolution in a Mediterranean Mountain Valley
Terraced historical landscapes have multiple functions in mountain land, limiting erosion, enabling agricultural production and constituting cultural heritage. Currently, they are largely abandoned in Mediterranean regions and facing the ongoing impacts of climate change. Our aim is to reconstruct the evolution of land use on the terraces in order to test the hypothesis of the resilience of these landscapes and their age in recent history (17th–21st century). To achieve this, we used various current and archive spatial datasets and GIS knowledge to detect and map terraces and the changes in land use. We tested this hypothesis in a territory impacted by a recent extreme event, facing the challenge of its reconstruction. Our main outcome showed that the optimal use of the terraces corresponded to the demographic optimum of the mid-19th century, and they were gradually abandoned after the Second World War, with significant differences between Mediterranean and mountain lands. Despite this evolution, the terraces persisted and withstood an extreme event, validating our resilience hypothesis and opening avenues for the revitalization of this territory based on this heritage. These findings are drawing perspectives for the future of terraced landscapes in Mediterranean mountains in the context of climate change.
Journal Article
A Nationally Coherent Characterization and Quantification of Mountain Systems in Canada
Much of Canada is covered by vast and diverse mountains, yet numerous fundamental aspects of Canadian mountain systems have yet to be systematically characterized and quantified in a nationally coherent manner. In response, we delineated mountain areas in Canada according to the Kapos et al definition of mountain areas (K1) and then developed a classification scheme that subdivides K1 into 10 major mountain regions within Canada. Using these boundaries, we conducted numerous geospatial analyses using ArcGIS Pro to advance understanding of the biogeography, people, and economic activities associated with mountains in Canada. By providing consistent and comparable information about mountain systems in the country, our results reveal the national and international importance of Canadian mountain systems across a range of environmental and social metrics. They also provide a foundation for the advancement of research, policy, and work on social issues related to mountains in Canada, all of which have been constrained to date by a lack of nationally coherent analytical frameworks and statistics. We conclude by acknowledging the provisional and culturally situated nature of our work and reflect on the need for more inclusive approaches to designing and interpreting analyses aimed at advancing understanding of mountain systems.
Journal Article