Results 131 to 140 of about 117,263 (306)

Effect of Different Irrigation Programs on Structural Characteristics, Productivity and Water Use Efficiency of Opuntia and Nopalea Forage Cactus Clones

Grasses
The objective of this study was to evaluate the structural characteristics, yield and water use efficiency of forage cactus under daytime and nighttime irrigation in a Brazilian semiarid region. The experiment followed a completely randomized design in a
Jandis Ferreira Nunes de Araujo, João Pedro Alves de Souza Santos, Luciana Sandra Bastos de Souza, Carlos André Alves de Souza, Cléber Pereira Alves, Alexandre Maniçoba da Rosa Ferraz Jardim, Danielle da Silva Eugênio, Leonardo Francelino de Souza, José Edson Florentino de Morais, Wilma Roberta dos Santos, Glayciane Costa Gois, Fleming Sena Campos, Marcos Vinícius da Silva, Abelardo Antônio de Assunção Montenegro, Thieres George Freire da Silva   +14 more
doaj   +1 more source

Gypsic soils in the Brazilian Semiarid

Revista Brasileira de Ciência do Solo
ABSTRACT Globally, soils with gypsic horizons cover approximately 1 million km², predominantly in arid climates. The formation of pedogenic gypsum in soils has been a topic of discussion in pedological studies for some time, with gypsification representing the process responsible for secondary gypsum accumulation.
Artur Henrique Nascimento da Silva, Marilya Gabryella Sousa, José Coelho de Araújo, Marcelo Metri Corrêa, Xose Lois Otero, Tiago Osório Ferreira, Maria Augusta Maciel Alves Correia, Valdomiro Severino de Souza   +7 more
openaire   +3 more sources

An Archaeometric Approach to Reveal Organic Compounds via GC‐MS Analyses of Two Discovered Incense Burners at Daba Al‐Bayah

Archaeometry, EarlyView.
ABSTRACT This study focuses on two terracotta incense burners discovered in the Daba Al‐Bayah necropolis in the Musandam Peninsula (Oman), associated with an Iron Age collective tomb (LCG‐2). Through gas chromatography–mass spectrometry (GC‐MS), the organic residues preserved within these artifacts were analyzed to investigate their use and ...
Francesco Genchi, Federica Spagnoli, Vittorio Vinciguerra, Stefania Garzoli   +3 more
wiley   +1 more source

Mapping Burned Area in the Caatinga Biome: Employing Deep Learning Techniques

Fire
The semi-arid Caatinga biome is particularly susceptible to fire dynamics. Periodic droughts amplify fire risks, while anthropogenic activities such as agriculture, pasture expansion, and land-clearing significantly contribute to the prevalence of fires.
Washington J. S. Franca Rocha, Rodrigo N. Vasconcelos, Soltan Galano Duverger, Diego P. Costa, Nerivaldo A. Santos, Rafael O. Franca Rocha, Mariana M. M. de Santana, Ane A. C. Alencar, Vera L. S. Arruda, Wallace Vieira da Silva, Jefferson Ferreira-Ferreira, Mariana Oliveira, Leonardo da Silva Barbosa, Carlos Leandro Cordeiro   +13 more
doaj   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

Archaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

HOW STRONG IS THE RELATIONSHIP BETWEEN RAINFALL VARIABILITY AND CAATINGA PRODUCTIVITY? A CASE STUDY UNDER A CHANGING CLIMATE

Anais da Academia Brasileira de Ciências
Despite the knowledge of the influence of rainfall on vegetation dynamics in semiarid tropical Brazil, few studies address and explore quantitatively the various aspects of this relationship.
CLEBER SALIMON, LIANA ANDERSON
doaj   +1 more source

Wildlife preservation in semiarid regions

La Terre et La Vie, Revue d'Histoire naturelle, 1958
Cahalane Victor Harrison. Wildlife preservation in semiarid regions . In: La Terre et La Vie, Revue d'Histoire naturelle, tome 12, n°4, 1958. pp. 383-389.
openaire   +3 more sources

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

Conservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás, Francisco Botello, Claudia E. Moreno, Griselda Escalona‐Segura, Víctor Sánchez‐Cordero   +4 more
wiley   +1 more source

Spatial and temporal variability of CO2 emisions in soils under conventional tillage and no-till farming [PDF]

, 2012
Agricultural soils can act as a carbon sink depending on the soil management practices employed. As a result of this functional duality, soil management systems are present in international documents relating to climate change mitigation.
Basch, G., Carbonell-Bojollo, R., González- Sánchez, E., Ordóñez- Fernández, R., Repullo Ruibérriz De Torres, M.A.   +4 more
core  

Plant clonal morphologies and spatial patterns as self-organized responses to resource-limited environments

, 2014
We propose here to interpret and model peculiar plant morphologies (cushions, tussocks) observed in the Andean altiplano as localized structures. Such structures resulting in a patchy, aperiodic aspect of the vegetation cover are hypothesized to self ...
Anthelme, F., Clerc, M., Couteron, P., Escaff, D., Fernandez-Oto, C., Tlidi, M.   +5 more
core   +2 more sources