An increase in the upper tree-limit of silver fir (Abies alba Mill.) in the Alps since the mid-20th century: A land-use change phenomenon

2010 ◽  
Vol 259 (8) ◽  
pp. 1406-1415 ◽  
Author(s):  
Sandrine Chauchard ◽  
Fabien Beilhe ◽  
Nicole Denis ◽  
Christopher Carcaillet
2014 ◽  
Vol 9 (5) ◽  
pp. 495-518
Author(s):  
Krzysztof Świerkosz ◽  
Kamila Reczyńska ◽  
Karel Boublík

AbstractUsing vegetation databases from Poland, the Czech Republic, Austria, Slovakia and our own material collected during a field work, we have analysed the variability of species composition of Abies alba-dominated communities in Central Europe. Analysis was performed using a modified TWINSPAN algorithm in the JUICE software. Ecological analysis was performed on the basis of mean Ellenberg indicator values with a MoPeT_v1.0.r script prepared in R software. In general, the findings indicated that there are at least 8 types of Central European silver fir-dominated forests with different patterns in species composition and habitat conditions. These are the oligotrophic subcontinental silver fir forests of the Polish highlands, oligotrophic (sub)montane silver fir forest, hygrophilous silver fir forests, oligo-mesotrophic (sub)montane silver fir forests, mesotrophic (sub)montane silver fir forests, submontane and montane calcicolous silver fir forests of the Alps and the Carpathians, eutrophic silver fir-beech forests and silver fir ravine forests. The main conclusion is that the diversity of species composition of Abies alba-dominated forests in Central Europe is lower than described in current regional synthesis, which was confirmed by ecological analyses.


Author(s):  
Ulrike Tappeiner ◽  
Erich Tasser

The Alps are the highest and largest mountain range in Europe. They extend from the Ligurian Sea to the Pannonian Basin in an arc 744 miles (1,200 km) long and between 93 and 155 miles (150–250 km) wide. The settlement history of this large European landscape is closely linked to the settlement of Europe as a whole, whereby the inner Alpine region was not permanently settled until around 4500 bce because of topographical and climatic disadvantages. Dense forest cover initially made it difficult to use large grazing areas, but transhumance gradually developed in the Alpine region when the animals spent their summers high up in the mountains and their winters in the valleys. At about the same time, the Alpine self-sufficiency economy of arable farming and livestock breeding was added, which made permanent settlement possible. However, the most intensive settlement and land reclamation advance took place in the Middle Ages. In the 19th century, industrialization reached the Alpine region a little delayed, and globalization in the middle of the 20th century. This also led to a fundamental change in society. The previous agricultural society was replaced by the service society of the 20th century. Developments since the late 1950s have taken place against the background of developments in the European Union (EU) as a whole, above all the Common Agricultural Policy and the European Spatial Development Perspective (ESDP), but these developments were and still are influenced by additional agreements specific to the Alps, such as the Alpine Convention, the Alpine Protection Commission (CIPRA), and the Alpine Working Community (Arge Alp). All these factors mean that historical and current development of land use in the Alpine region has been and is always linked to developments in Europe. Many studies on land use in the Alpine region should therefore be seen in this context. Moreover, past land use often has long-lasting legacy effects on ecosystems and their development. Therefore, in this article we deal not only with historical land use but also with current and future developments and their impacts on ecosystem functions and services.


Plant Ecology ◽  
2016 ◽  
Vol 217 (8) ◽  
pp. 993-1002 ◽  
Author(s):  
Madan Krishna Suwal ◽  
Krishna Babu Shrestha ◽  
Laba Guragain ◽  
Rabin Shakya ◽  
Kalpana Shrestha ◽  
...  

2013 ◽  
Vol 11 (4) ◽  
pp. 415-433 ◽  

Saltscapes are landscapes with a long lasting salt-making activity, thus embedded with a blend of salt-related characteristics that marked them physically, ecologically, economically, and culturally. This study, based on a broad survey, focuses on the changing atlas of saltmaking business and the consequent land use change in Greece within the 20th century. Like in many Mediterranean countries, salt-making has been an important activity in Greece, not only because salt catered for local and national needs (food condiment and preservative; basic resource in husbandry and industry), but also because it offered significant revenues to the Greek State. Taxed salt has been produced in 28 semi- or entirely-mechanized State saltworks. The remaining less productive salinas operated in clandestine and were numerous: 48 in lagoons and 307 on rocks. Both salina types produced either self-formed salt or were man-managed (primitive, artisanal). This very dense network of salt-making sites, all located along the coastline, was in operation mostly until WW II, thereafter many sites were gradually abandoned. Today only eight saltworks are active in Greece (dormancy 71.4%) and, despite their increased potential, the overall saltscape loss in the country is significant. Salinas operating in lagoons suffered a spectacular change (93.4%) compared to those on rocks (43.0%). We discuss the reasons of abandonment, especially the role of “globalization” in heritage loss (ecological, cultural). We compare salinas on islands and the mainland as to typology and values and we propose ways of recuperating these threatened resources by using them as alternative poles for local development mainly through tourism.


2005 ◽  
Vol 35 (1) ◽  
pp. 21-36 ◽  
Author(s):  
R Motta ◽  
J L Edouard

Size, age, and spatial structures were studied in a mixed, multilayered forest located in the Upper Susa Valley in Piedmont, Italy, using complete stem mapping, dendrochronology, and spatial analysis on a 1-ha permanent plot. All trees with a diameter >4 cm at 50 cm height (991) and stumps (322) were mapped, measured, and cored. The 639 cross-dated samples were used to reconstruct the disturbance history, and dendroecological results were then compared with information on forest and land use from documentary archives. The stand has undergone substantial shifts in forest structure and species composition over the last 200 years, from an open structure with larch (Larix decidua Mill.), Swiss mountain pine (Pinus uncinata L.), Norway spruce (Picea abies (L.) Karst.), and scattered regeneration to a dense multilayered structure with silver fir (Abies alba Mill.) and Norway spruce with dense regeneration. Shifts in dominance and structure were found to be consistent with land-use changes rather than with disturbance history. These results confirm the importance of multiple sources of independent data to characterize the disturbances that have affected the origin and development of stands heavily impacted by humans. Knowledge of stand history and understanding of potential ecological transformations are essential for the correct application of close-to-nature silvicultural practices.


2010 ◽  
Vol 30 (13) ◽  
pp. 2055-2065 ◽  
Author(s):  
Bart J. Strengers ◽  
Christoph Müller ◽  
Michiel Schaeffer ◽  
Reindert J. Haarsma ◽  
Camiel Severijns ◽  
...  

Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.


Author(s):  
H. Lilienthal ◽  
A. Brauer ◽  
K. Betteridge ◽  
E. Schnug

Conversion of native vegetation into farmed grassland in the Lake Taupo catchment commenced in the late 1950s. The lake's iconic value is being threatened by the slow decline in lake water quality that has become apparent since the 1970s. Keywords: satellite remote sensing, nitrate leaching, land use change, livestock farming, land management


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