Assessment of fire selectivity in relation to land cover and topography: a comparison between Southern European countries

2014 ◽  
Vol 23 (5) ◽  
pp. 620 ◽  
Author(s):  
Sandra Oliveira ◽  
Francisco Moreira ◽  
Roberto Boca ◽  
Jesús San-Miguel-Ayanz ◽  
José M. C. Pereira
Keyword(s):  
Land Cover ◽  
Management Strategies ◽  
Mediterranean Area ◽  
Southern Europe ◽  
Selection Ratio ◽  
The Balkans ◽  
Potential Association ◽  
Fire Selectivity ◽  
And Cluster Analysis ◽  
Broad Scale

Land cover distribution is one of the factors that influence fire behaviour and its consequences in the landscape. The relation between land cover type and fire was investigated at a broad scale, in order to analyse land cover differences in fire proneness. The selection ratio for nine different land cover categories was calculated for the fire perimeters mapped in Southern Europe between 2000 and 2008. The results obtained were then compared per country and region. The fire proneness of topographic classes and its potential association with land cover types were also assessed. At a broad scale, shrublands and grasslands were the most preferred by fire, whereas artificial surfaces and agricultural areas were less fire prone. Forests showed intermediate values of selection ratio. Principal components and cluster analysis identified three regions with significant differences among them: the Mediterranean area, the Balkans and Turkey–Cyprus. Slopes >25% and with a north aspect were also less susceptible to burning. The identification of common land cover and topographic characteristics allows for the application of common management strategies in Southern Europe, coupled with particular measures adjusted to the conditions that are country- and region-specific.

scholarly journals The Influence of Climate and Land-Cover Scenarios on Dam Management Strategies in a High Water Pressure Catchment in Northeast Spain

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1668 ◽  
Author(s):  
J. Zabalza-Martínez ◽  
S. Vicente-Serrano ◽  
J. López-Moreno ◽  
G. Borràs Calvo ◽  
R. Savé ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Land Cover ◽  
Water Pressure ◽  
Management Strategies ◽  
High Water ◽  
Climate Change Scenarios ◽  
Dam Management ◽  
Dam Inflow ◽  
Similar Decrease

This paper evaluates the response of streamflow in a Mediterranean medium-scaled basin under land-use and climate change scenarios and its plausible implication on the management of Boadella–Darnius reservoir (NE Spain). Land cover and climate change scenarios supposed over the next several decades were used to simulate reservoir inflow using the Regional Hydro-Ecologic Simulation System (RHESsys) and to analyze the future impacts on water management (2021–2050). Results reveal a clear decrease in dam inflow (−34%) since the dam was operational from 1971 to 2013. The simulations obtained with RHESsys show a similar decrease (−31%) from 2021 to 2050. Considering the ecological minimum flow outlined by water authorities and the projected decrease in reservoir’s inflows, different water management strategies are needed to mitigate the effects of the expected climate change.

scholarly journals Land and Forest Management by Land Use/ Land Cover Analysis and Change Detection Using Remote Sensing and GIS

2016 ◽  
Vol 9 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Forest Management ◽  
Land Cover ◽  
Spatial Data ◽  
Management Strategies ◽  
Geographical Information ◽  
Spatial Data Analysis ◽  
Study Region ◽  
Rugged Terrain

Abstract Remote sensing and Geographical Information System (GIS) are the most effective tools in spatial data analysis. Natural resources like land, forest and water, these techniques have proved a valuable source of information generation as well as in the management and planning purposes. This study aims to suggest possible land and forest management strategies in Chakia tahsil based on land use and land cover analysis and the changing pattern observed during the last ten years. The population of Chakia tahsil is mainly rural in nature. The study has revealed that the northern part of the region, which offers for the settlement and all the agricultural practices constitutes nearly 23.48% and is a dead level plain, whereas the southern part, which constitute nearly 76.6% of the region is characterized by plateau and is covered with forest. The southern plateau rises abruptly from the northern alluvial plain with a number of escarpments. The contour line of 100 m mainly demarcates the boundary between plateau and plain. The plateau zone is deeply dissected and highly rugged terrain. The resultant topography comprises of a number of mesas and isolated hillocks showing elevation differences from 150 m to 385 m above mean sea level. Being rugged terrain in the southern part, nowadays human encroachment are taking place for more land for the cultivation. The changes were well observed in the land use and land cover in the study region. A large part of fallow land and open forest were converted into cultivated land.

Changes in Land Use Influenced by Anthropogenic Activity

2020 ◽  
Author(s):  
Lang Wang ◽  
Zong-Liang Yang
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Management ◽  
Land Surface ◽  
Anthropogenic Activities ◽  
Urban Expansion ◽  
Management Strategies ◽  
Terrestrial Ecosystems ◽  
Anthropogenic Activity ◽  
Management Actions

The terms “land cover” and “land use” are often used interchangeably, although they have different meanings. Land cover is the biophysical material at the surface of the Earth, whereas land use refers to how people use the land surface. Land use concerns the resources of the land, their products, and benefits, in addition to land management actions and activities. The history of changes in land use has passed through several major stages driven by developments in science and technology and demands for food, fiber, energy, and shelter. Modern changes in land use have been increasingly affected by anthropogenic activities at a scale and magnitude that have not been seen. These changes in land use are largely driven by population growth, urban expansion, increasing demands for energy and food, changes in diets and lifestyles, and changing socioeconomic conditions. About 70% of the Earth’s ice-free land surface has been altered by changes in land use, and these changes have had environmental impacts worldwide, ranging from effects on the composition of the Earth’s atmosphere and climate to the extensive modification of terrestrial ecosystems, habitats, and biodiversity. A number of different methods have been developed give a thorough understanding of these changes in land use and the multiple effects and feedbacks involved. Earth system observations and models are examples of two crucial technologies, although there are considerable uncertainties in both techniques. Cross-disciplinary collaborations are highly desirable in future studies of land use and management. The goals of mitigating climate change and maintaining sustainability should always be considered before implementing any new land management strategies.

scholarly journals Key scale insects (Hemiptera: Coccoidea) of high economic importance in a Mediterranean area: host plants, bio-ecological characteristics, natural enemies and pest management strategies – a review

2017 ◽  
Vol 53 (No. 1) ◽  
pp. 1-14 ◽  
Author(s):  
Mansour Ramzi ◽  
Grissa-Lebdi Kaouthar ◽  
Suma Pompeo ◽  
Mazzeo Gaetana ◽  
Russo Agatino
Keyword(s):  
Pest Management ◽  
Host Plants ◽  
Management Strategies ◽  
Mediterranean Area ◽  
Economic Importance ◽  
Scale Insects ◽  
Economic Losses ◽  
Planococcus Citri ◽  
Present Contribution ◽  
Saissetia Oleae

Key scale insects that have long been considered as having high economic importance in Tunisia and for which several research studies and pest management programs have been undertaken include the mealybug species Planococcus ficus (Signoret) and Planococcus citri Risso, the soft scale Saissetia oleae (Olivier) and the armoured scale Parlatoria ziziphi (Lucas). The host plants, bio-ecological aspects, auxiliary fauna of each of the aforementioned species as well as the related economic losses and pest management strategies adopted are explored and discussed. Among these species, P. ficus is considered herein as the most economically important in Tunisia. Still, the present contribution constitutes the first review article on key scale insects infesting plants in the South Mediterranean Maghreb area.

Socioeconomic evaluation of broad-scale land management strategies

2001 ◽  
Vol 153 (1-3) ◽  
pp. 147-160 ◽  
Author(s):  
Lisa K Crone ◽  
Richard W Haynes
Keyword(s):  
Land Management ◽  
Management Strategies ◽  
Broad Scale

Denuclearization on NATO's Southern Front: Allied Reactions to Soviet Proposals, 1957–1963

2012 ◽  
Vol 14 (4) ◽  
pp. 197-215 ◽  
Author(s):  
Lykourgos Kourkouvelas
Keyword(s):  
Soviet Union ◽  
Western Europe ◽  
Active Role ◽  
The United States ◽  
Cuban Missile Crisis ◽  
Southern Europe ◽  
East European ◽  
The Balkans ◽  
The Soviet Union ◽  
Nuclear Missiles

In the late 1950s and early 1960s, the Soviet Union and its East European allies sought to prevent the installation of U.S. nuclear missiles in Western Europe by embarking on a diplomatic “peace offensive” that included proposals for the creation of denuclearized zones in various geographical areas of Europe. This article considers how the NATO countries responded to these proposals. In the end, the Western allies rejected proposals for the denuclearization of the Balkans and other areas in Europe, but discussions within NATO's councils often proved complicated, especially regarding southern Europe. In the case of the 1957 Stoica proposal for the denuclearization of the Balkans, the leading NATO countries stepped back and let Turkey and Greece reject the proposal, but by 1963, in the aftermath of the Cuban missile crisis, the United States and other key allied countries as well as the NATO bureaucracy assumed a more active role in evaluating and ultimately rejecting the notion of denuclearization in the Mediterranean.

scholarly journals Tephrostratigraphy and tephrochronology of lakes Ohrid and Prespa, Balkans

2010 ◽  
Vol 7 (3) ◽  
pp. 3931-3967 ◽  
Author(s):  
R. Sulpizio ◽  
G. Zanchetta ◽  
M. D'Orazio ◽  
H. Vogel ◽  
B. Wagner
Keyword(s):  
Southern Italy ◽  
Mediterranean Area ◽  
Mount Etna ◽  
Middle Pleistocene ◽  
Tephra Layer ◽  
Lake Ohrid ◽  
Central Mediterranean ◽  
The Balkans ◽  
Tephra Layers ◽  
First Time

Abstract. Four cores from Balkans lakes Ohrid and Prespa were studied for recognition of tephra layers and cryptotephras, and the results presented along with the review of data from other two already published cores from Lake Ohrid. The six cores provide a previously unrealised tephrostratigraphic framework of the two lakes, and supply the first detailed tephrochronologic profile (composite) for the Balkans, which spans from the end of the Middle Pleistocene to the end of the Ancient Age (AD 472). A total of 12 tephra layers and cryptotephras were recognised in the cores. One is of Middle Pleistocene age (131 ky) and correlated to the marine tephra layer P-11 from Pantelleria Island. Eight volcanic layers are Upper Pleistocene in age, and encompass the period between ca. 107 ky and ca. 31 ky. This interval contains some of the main regional volcanic markers of the Central Mediterranean area, including X-6, X-5, Y-5 and Y-3 tephra layers. The other layers of this interval have been related to the marine tephra layers C20, Y-6 and C10, while one was for the first time recognised in distal areas and correlated to the Taurano eruption of probable Vesuvian origin. Three cryptotephras were of Holocene age. Two of which have been correlated to Mercato and AD 472 eruptions of Somma-Vesuvius, while the third has been correlated to the FL eruption from Mount Etna. These recognitions provide a link of the Ohrid and Prespa lacustrine successions to other archives of the Central Mediterranean area, like South Adriatic, Ionian, and South Tyrrhenian Seas, lakes of Southern Italy (Lago Grande di Monticchio, Pantano di San Gregorio Magno and Lago di Pergusa) and Balkans (Lake Shkodra).

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