scholarly journals Cartography of Landscape Dynamics in Central Spain

10.5772/47841 ◽  
2012 ◽  
Author(s):  
N. Lpez-Estbanez ◽  
F. Allende ◽  
P. Fernndez-Saudo ◽  
M.J. Roldn ◽  
P. De Las Heras
Keyword(s):  
Landscape Dynamics ◽  
Central Spain

scholarly journals Have Historical Land Use/Land Cover Changes Triggered a Fire Regime Shift in Central Spain?

Fire ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 44 ◽  
Author(s):  
Cristina Montiel-Molina ◽  
Lara Vilar ◽  
Catarina Romão Sequeira ◽  
Oskar Karlsson ◽  
Luis Galiana-Martín ◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Fire History ◽  
Fire Regime ◽  
Influencing Factor ◽  
Fire Behavior ◽  
Landscape Dynamics ◽  
Central Spain ◽  
Lulc Changes ◽  
Systemic Analysis

Fire is one of the main disturbance factors shaping the landscape, and landscape is a key driver of fire behavior. Considering the role played by land use and land cover (LULC) changes as the main driver of landscape dynamics, the aim of this study was to calculate and analyze (i) the real impact of fire on LULC changes and (ii) how these LULC changes were influencing the fire regime. We used methods of historical geography and socio-spatial systemic analysis for reconstructing and assessing the LULC change and fire history in six case studies in the Central Mountain System (Spain) from archival documentary sources and historical cartography. The main result is an accurate dataset of fire records from 1497 to 2013 and a set of LULC maps for three time points (1890s–1930s, 1956–1957, and the 2000s). We have shown the nonlinear evolution of the fire regime and the importance of the local scale when assessing the interaction of landscape dynamics and fire regime variation. Our findings suggest that LULC trends have been the main influencing factor of fire regime variation in Central Spain since the mid-19th century.

Landscape Change in the Steppe of Algeria South-West Using Remote Sensing

2018 ◽  
Vol 18 (1) ◽  
pp. 41-52
Author(s):  
Tayeb Sitayeb ◽  
Ishak Belabbes
Keyword(s):  
Remote Sensing ◽  
Social Systems ◽  
Bare Soil ◽  
Climatic Conditions ◽  
Landscape Dynamics ◽  
Landsat 8 ◽  
Natural Ecosystems ◽  
Stipa Tenacissima ◽  
Steppe Species ◽  
Sparse Vegetation

Abstract Landscape dynamics is the result of interactions between social systems and the environment, these systems evolving significantly over time. climatic conditions and biophysical phenomena are the main factors of landscape dynamics. Also, currently man is responsible for most changes affecting natural ecosystems. The objective of this work is to study the dynamics of a typical landscape of western Algeria in time and space, and to map the distribution of vegetation groups constitute the vegetation cover of this ecosystem. as well as using a method of monitoring the state of a fragile ecosystem by remote sensing to understand the processes of changes in this area. The steppe constitutes a large arid area, with little relief, covered with low and sparse vegetation. it lies between the annual isohyets of 100 to 400 mm, subjected to a very old human exploitation with an activity of extensive breeding of sheep, goats, and camels. Landsat satellite data were used to mapping vegetation groups in the Mecheria Steppe at a scale of 1: 300,000. Then, a comparison was made between the two maps obtained by a classification of Landsat-8 sensor Operational Land Imager (OLI) acquired on March 18, 2014, and Landsat-5 sensor Thematic Mapper (TM) acquired on April 25, 1987. The results obtained show the main changes affecting the natural distribution of steppe species, a strong change in land occupied by the Stipa tenacissima steppe with 65% of change, this steppe is replaced by Thymelaea microphylla, Salsola vermiculata, lygeum spartum and Peganum harmala steppe. an absence from the steppe Artemisia herba-alba that has also been replaced by the same previous steppes species. The groups with Quercus ilex and Juniperus phoenicea are characterized by a strong regression that was lost 60% of its global surface and transformed by steppe to stipa tenacissima and bare soil.

Contribution to the biology and larval morphology of Nebula ibericata (Staudinger, 1871) in Madrid (central Spain) (Lepidoptera: Geometridae: Larentiinae)

2018 ◽  
Vol 69 (2) ◽  
pp. 107-114
Author(s):  
Gareth Edward King ◽  
José Luis Viejo Montesinos
Keyword(s):  
Larval Morphology ◽  
Central Spain

Data are provided on the biology, phenology, oviposition and morphology (first to final instars) as well as the chaetotaxy L2, L5 of the larentine moth Nebula ibericata (Staudinger, 1871) in Madrid, central Spain.

Protocol for Landsat-Based Monitoring of Landscape Dynamics at North Coast and Cascades Network Parks

10.3133/tm2g1 ◽  
2007 ◽  
Author(s):  
Robert E. Kennedy ◽  
Warren B. Cohen ◽  
Alan A. Kirschbaum ◽  
Erik Haunreiter
Keyword(s):  
Landscape Dynamics ◽  
North Coast

Distribution area of Juniperus oxycedrus L. in Central Spain (Madrid)

2013 ◽  
Vol 39 (1) ◽  
pp. 181-190
Author(s):  
Fernando Allende Álvarez ◽  
Paloma de Las Heras Puñal ◽  
Paloma Fernández-Sañudo ◽  
Nieves López Estébanez ◽  
María José Roldán Martín
Keyword(s):  
Distribution Area ◽  
Central Spain ◽  
Juniperus Oxycedrus

Evidence of Protolith Contamination in the Generation of an Anatectic Complex: Pena Negra, Central Spain

2007 ◽  
Vol 2 (1) ◽  
pp. 6-16
Author(s):  
Dolores Pereira ◽  
Maria Dolores Rodriguez Alonso ◽  
Karmah Salman
Keyword(s):  
Central Spain

scholarly journals Photoprotective Strategies in Mediterranean High-Mountain Grasslands

Diversity ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 137
Author(s):  
Rosina Magaña Ugarte ◽  
María Pilar Gómez-Serranillos ◽  
Adrián Escudero ◽  
Rosario G. Gavilán
Keyword(s):  
Seasonal Changes ◽  
Detrimental Effect ◽  
Ultraviolet B ◽  
High Mountain ◽  
Central Spain ◽  
Adverse Conditions ◽  
Optimal Functioning ◽  
Mountain Grasslands ◽  
Lutein Content ◽  
Mountain Plants

Albeit the remarkably high Ultraviolet B loads, high temperatures, and drought stress substantiate the need for efficient photoprotective strategies in Mediterranean high-mountain plants, these remain understudied. Considering the sensitivity of photosystems to extreme conditions, we evaluated an environmental gradient’s weight on the photoprotection of five high-mountain specialists from Central Spain. Diurnal and seasonal variations in chlorophyll, chlorophyll fluorescence, carotenoids, and xanthophylls in consecutive and climatically contrasting years were taken to evaluate the effect of the impending climate coarsening at the photosystem level. Our results revealed significant differences among species in the xanthophyll cycle functioning, acting either as a continuous photoprotective strategy enhancing photochemistry-steadiness; or prompted only to counteract the cumulative effects of atypically adverse conditions. The lutein cycle’s involvement is inferred from the high lutein content found in all species and elevations, acting as a sustained photoprotective strategy. These findings added to high de-epoxidation state (DEPS) and minor seasonal changes in the chlorophyll a/b ratio, infer the xanthophyll and Lutein cycles are crucial for upkeeping the photosystems’ optimal functioning in these plants heightening their photoprotective capacity during periods of more unfavorable conditions. Nevertheless, an atypically dry growing season’s detrimental effect infers the feasible surpassing of stress-thresholds and the precariousness of the communities’ functional diversity under climate change.

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