scholarly journals Natural revegetation and afforestation in abandoned cropland areas: Hydrological trends and changes in Mediterranean mountains

2021 ◽  
Author(s):  
M. Khorchani ◽  
E. Nadal‐Romero ◽  
T. Lasanta ◽  
C. Tague
Keyword(s):  
Mediterranean Mountains ◽  
Natural Revegetation ◽  
Abandoned Cropland

Cork oak (Quercus suber L.) forests of western Mediterranean mountains: a plant community comparison

2014 ◽  
Vol 40 (1) ◽  
pp. 35-48
Author(s):  
William D. Simonson ◽  
Harriet D. Allen
Keyword(s):  
Plant Community ◽  
Quercus Suber ◽  
Western Mediterranean ◽  
Cork Oak ◽  
Mediterranean Mountains

scholarly journals Early anthropogenic change in western Mediterranean mountains (Sierra Nevada, SE Spain)

Anthropocene ◽  
2021 ◽  
Vol 33 ◽  
pp. 100278
Author(s):  
Francisca Alba-Sánchez ◽  
Daniel Abel-Schaad ◽  
José Antonio López-Sáez ◽  
Silvia Sabariego-Ruiz ◽  
Sebastián Pérez-Díaz ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Western Mediterranean ◽  
Anthropogenic Change ◽  
Se Spain ◽  
Mediterranean Mountains

scholarly journals Hedgerows and Enclosures in Rural Areas: Traditional vs. Modern Land Use in Mediterranean Mountains

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Fernando Allende Álvarez ◽  
Gillian Gómez-Mediavilla ◽  
Nieves López-Estébanez ◽  
Pedro Molina Holgado ◽  
Judith Ares Barajas
Keyword(s):  
Land Use ◽  
Rural Areas ◽  
Land Use Changes ◽  
Economic Benefits ◽  
Main Role ◽  
Land Uses ◽  
Social Ecological ◽  
The Social ◽  
Mediterranean Mountains ◽  
Agroforestry Practices

The present paper highlights the importance of hedgerows and enclosures in the mountains of Central Spain. Now, these landscapes have suffered profound variations in terms of agroforestry practices, especially in the Mediterranean mountains where the characteristic multifunctional has largely been lost. The article analyzes land uses changes, dynamics, and their morphological features between the first half of the 20th Century (1956) and the second decade of the present time (2019). The paper was divided into three sections. First, the identification of land uses using orthophotograph and aerial photograph; after that the info was checked with fieldwork. Eleven categories were identified according to the dominant use and land use changes and size of land parcels were taken into consideration. Second, the configuration and the information collected through the type and intensity of change in land uses made it possible to recognise and quantify their distribution and trend between these two dates. Also, the kernel density algorithm available in the Arcgis 10.5 software was used to obtain density and changes in land parcels. Finally, an overview is given of the main role that this agroforestry plays due to the social, ecological, and economic benefits that they provide for allowing sustainable development.

scholarly journals Taxonomic and Functional Diversity of a Quercus pyrenaica Willd. Rhizospheric Microbiome in the Mediterranean Mountains

Forests ◽  
2017 ◽  
Vol 8 (10) ◽  
pp. 390 ◽  
Author(s):  
José Cobo-Díaz ◽  
Antonio Fernández-González ◽  
Pablo Villadas ◽  
Nicolás Toro ◽  
Susannah Tringe ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Quercus Pyrenaica ◽  
Mediterranean Mountains ◽  
The Mediterranean

Clearing shrubland and extensive livestock farming: Active prevention to control wildfires in the Mediterranean mountains

2018 ◽  
Vol 227 ◽  
pp. 256-266 ◽  
Author(s):  
T. Lasanta ◽  
M. Khorchani ◽  
F. Pérez-Cabello ◽  
P. Errea ◽  
R. Sáenz-Blanco ◽  
...  
Keyword(s):  
Livestock Farming ◽  
Mediterranean Mountains ◽  
The Mediterranean

Bioenergy potentials from recently abandoned cropland under the land-energy-water nexus

2021 ◽  
Author(s):  
Jan Sandstad Næss ◽  
Otavio Cavalett ◽  
Francesco Cherubini
Keyword(s):  
Nature Conservation ◽  
Water Use ◽  
Soil Characteristics ◽  
Agricultural Management ◽  
Site Specific ◽  
Bioenergy Production ◽  
Trade Offs ◽  
Irrigation Water Use ◽  
Land Availability ◽  
Abandoned Cropland

<p>Bioenergy plays a key role in scenarios limiting global warming below 2°C in 2100 relative to pre-industrial times. Land availability for bioenergy production is constrained due to competition with agriculture, nature conservation and other land uses. Utilizing recently abandoned cropland to produce bioenergy is a promising option for gradual bioenergy deployment with lower risks of potential trade-offs on food security and the environment. Up until now, the global extent of abandoned cropland has been unclear. Furthermore, there is a need to better map bioenergy potentials, taking into account site-specific conditions such as local climate, soil characteristics, agricultural management and water use.</p><p>Our study spatially quantify global bioenergy potentials from recently abandoned cropland under the land-energy-water nexus. We integrate a recently developed high-resolution satellite-derived land cover product (European Space Agency Climate Change Initiative Land Cover) with an agro-ecological crop yield model (Global Agro-Ecological Zones 3.0). Abandoned cropland is mapped as pixels transitioning from cropland to non-urban classes. We further identify candidate areas for nature conservation and areas with increased pressure on water resources. Based on climatic conditions, soil characteristics and agricultural management levels, we spatially model bioenergy yields and irrigation water use on abandoned cropland for three perennial grasses. We compute and analyze bioenergy potentials for 296 different variants of management factors and land and water use constraints. By assessing key energy, water and land indicators, we identify optimal bioenergy production strategies and site-specific trade-offs.</p><p>We found 83 million hectares of abandoned cropland between 1992 and 2015, equivalent of 5% of today’s cropland area. Bioenergy potentials range between 6-39 exajoules per year (EJ yr<sup>-1</sup>) (11-68% of today’s bioenergy demand), depending on agricultural management, land availability and irrigation water use. We further show and extensively discuss site-specific trade-offs between increased bioenergy production, land-use and water-use. Our high-end estimate (39 EJ yr<sup>-1</sup>) relies on complete irrigation and land availability. When acknowledging site-specific trade-offs on water resources and nature conservation, a potential of 20 EJ yr<sup>-1</sup> is achievable without production in biodiversity hotspots or irrigation in water scarce areas. This is equal to 8-23% of median projected bioenergy demand in 2050 for 1.5°C scenarios across different Shared Socio-economic Pathways. The associated land and water requirements are equal to 3% of current global cropland extent and 8% of today’s global agricultural water use, respectively.</p>

NATURAL REVEGETATION OF ACID COAL SPOILS IN SOUTHEAST IOWA

1979 ◽  
pp. 568-575 ◽  
Author(s):  
David C. Glenn-Lewin
Keyword(s):  
Natural Revegetation

scholarly journals Effects of two typical revegetation methods on soil moisture in the semi-arid Loess Plateau, China

2019 ◽  
Vol 50 (5) ◽  
pp. 1453-1462
Author(s):  
Qian Zhao ◽  
Lei Yang ◽  
Xin Wang ◽  
Runcheng Bi ◽  
Qindi Zhang
Keyword(s):  
Soil Moisture ◽  
Loess Plateau ◽  
Temporal Variations ◽  
Chinese Loess Plateau ◽  
Deep Soil ◽  
Chinese Loess ◽  
Soil Desiccation ◽  
Native Grasslands ◽  
First Choice ◽  
Natural Revegetation

Abstract Understanding the effects of vegetation on soil moisture is vital to the ecosystem restoration in water-restricted areas. For this study, the effects of introduced revegetation and natural revegetation on soil water (0–1.8 m) were investigated in the Chinese Loess Plateau, which was based on an in situ vegetation removal experiment and two years of soil moisture monitoring. The results indicated that under introduced revegetation, pasture grassland had lower soil moisture but higher temporal variations over the growing season. Compared with abandoned farmlands and native grasslands under natural revegetation, pasture grasslands revealed greater negative effects on deep soil moisture (1–1.8 m), which was difficult to recover following soil desiccation. In contrast, for abandoned farmlands and native grasslands, the surface soil moisture (0–0.4 m) was mainly impacted, which was easily replenished through rainfall events. These outcomes implied that natural revegetation, rather than introduced revegetation, should be the first choice in water-limited regions toward the rehabilitation of degraded ecosystems.

The effects of recreation disturbance on subalpine seed banks in the Rocky Mountains of Montana

2000 ◽  
Vol 78 (5) ◽  
pp. 577-582 ◽  
Author(s):  
Catherine Zabinski ◽  
Todd Wojtowicz ◽  
David Cole
Keyword(s):  
Organic Matter ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Seedling Emergence ◽  
Seed Density ◽  
Soil Cores ◽  
Bare Ground ◽  
Recreation Impacts ◽  
Natural Revegetation ◽  
Site Types

We investigated the soil seed bank in a subalpine ecosystem with patchy disturbance from camping. Soil cores were collected from three site types, heavily impacted, lightly impacted, and undisturbed, that differed in area of bare ground and depth of surface organic matter. We hypothesized that the density and composition of the seed bank would vary with depth of surface organic matter and distance from established vegetation. Seedling emergence was determined in the greenhouse. Seed density was significantly lower on disturbed sites, averaging 441 seeds/m2 on heavily impacted sites, 1495 seeds/m2 on lightly impacted sites, and 4188 seeds/m2 on undisturbed sites. Seed density declined exponentially with distance from established vegetation and increased with depth of surface organic matter. The number of species present did not vary across site types, but 10 species that occurred on lightly impacted and undisturbed sites were not present on heavily impacted sites. We concluded that disturbance that causes removal of surface organic matter can affect natural revegetation by lowering the density of propagules and affecting the species represented in the seed bank.Key words: seed bank, subalpine, patchy disturbance, recreation impacts.

scholarly journals Patterns of Natural Revegetation in Arid Southeastern Utah

1978 ◽  
Vol 31 (6) ◽  
pp. 407 ◽  
Author(s):  
Richard A. Jaynes ◽  
K. T. Harper
Keyword(s):  
Natural Revegetation
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