Assessment of automated evapotranspiration estimates obtained using the GP-SEBAL algorithm for dry forest vegetation (Caatinga) and agricultural areas in the Brazilian semiarid region

2021 ◽  
Vol 250 ◽  
pp. 106863
Author(s):  
Carlos Eduardo Santos de Lima ◽  
Valéria Sandra de Oliveira Costa ◽  
Josiclêda Domiciano Galvíncio ◽  
Richarde Marques da Silva ◽  
Celso Augusto Guimarães Santos
Keyword(s):  
Forest Vegetation ◽  
Dry Forest ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Agricultural Areas

scholarly journals Land use and fragmentation in a dry forest in the Brazilian semiarid

2020 ◽  
Vol 11 (1) ◽  
pp. 92-101
Author(s):  
Luís Pedro do Nascimento Souza ◽  
Debora Coelho Moura ◽  
Regiane Farias Batista ◽  
Cássio Ricardo Gonçalves da Costa ◽  
Ailson De Lima Marques
Keyword(s):  
Land Use ◽  
Dry Forest ◽  
Semiarid Region ◽  
Forest Fragments ◽  
Floristic Survey ◽  
Seasonally Dry ◽  
Survey Techniques ◽  
Regeneration Stage ◽  
Brazilian Semiarid ◽  
Main Medium

The municipality of Campina Grande is the main medium city in the Brazilian semiarid region. Its floristics are formed by the tropical forest (seasonally dry transition) and the Caatinga. In view of this reality, the present study sought to assess the dynamics of land use, map forest fragments from 2010 to 2018, and study floristics. Remote Sensing and floristic survey techniques were used. There was an increase of 21.6% in urban and agricultural space, a reduction in fragments of vegetation by 20.2% and an increase in the regeneration stage by 18.7%. These data show forest fragmentation and loss of biodiversity due to crop rotation mainly in winter. On the other hand, there is a succession of pioneer species in this regeneration of the Caatinga. This indicates a decrease in the richness of tree species and, consequently, loss of forest in the municipality during this period.

Nitrogen Stocks in Soil Classes Under Different Land Uses in the Brazilian Semiarid Region

2021 ◽  
Author(s):  
Uemeson José dos Santos ◽  
Everardo Valadares de Sá Barretto Sampaio ◽  
Eunice Maia de Andrade ◽  
Alexandre de Siqueira Pinto ◽  
Bruno de Oliveira Dias ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Land Uses ◽  
Brazilian Semiarid

Management of water supply systems from interbasin transfers: case study in the Brazilian semiarid region

2021 ◽  
pp. 1-12
Author(s):  
José Almir Cirilo ◽  
Alfredo Ribeiro Neto ◽  
Nyadja Menezes Rodrigues Ramos ◽  
Carla Fernanda Fortunato ◽  
Júlia Daniele Silva de Souza ◽  
...  
Keyword(s):  
Water Supply ◽  
Semiarid Region ◽  
Water Supply Systems ◽  
Brazilian Semiarid ◽  
Interbasin Transfers ◽  
Supply Systems

scholarly journals Spatial distribution and temporal variation of microcrustaceans assembly (Cladocera and Copepoda) in different compartments of a reservoir in the brazilian semiarid region

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Josiane Souza Santos ◽  
Nadson Ressyé Simões ◽  
Sérgio Luiz Sonoda
Keyword(s):  
Spatial Distribution ◽  
Spatial Variation ◽  
Temporal Variation ◽  
Aquatic Macrophytes ◽  
Temporal Dynamics ◽  
Lateral Compartment ◽  
Spatial And Temporal Variation ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Significant Spatial Variation

Abstract Aim: The objective of this study was to investigate the spatial and temporal variation of microcrustacean assemblages of a reservoir in the Brazilian semiarid region. Methods Physical and chemical water variables and samples of microcrustaceans were collected at eight sites of the reservoir between July 2013 and November 2014, in a total of seven campaigns. For this study, the reservoir was categorized in two compartments: lateral and central. Results Limnological variables showed significant temporal variation (PERMANOVA, Pseudo-F = 19.51, p = 0.001). Higher turbidity values and suspended solids were observed in the rainiest months, while during the dry months, we measured higher values of transparency, dissolved oxygen, and chlorophyll-a. It was not found significant spatial variation of limnological variables (PERMANOVA, Pseudo-F = 0.96; p = 0.394). During the study period, ten species were recorded: four Cladocera (Ceriodaphnia cornuta, Daphnia gessneri, Diaphanosoma birgei and Diaphanosoma spinulosum ) three Copepoda Calanoida (Argyrodiaptomus azevedoi, Notodiaptomus cearensis and Notodiaptomus iheringi) and three Copepoda Cyclopoida (Macrocyclops albidus, Thermocyclops minutus and Thermocyclops decipiens). The microcrustacean assemblages showed significant temporal variation (PERMANOVA, Pseudo-F = 4.34; p = 0.001) as well as significant spatial variation (PERMANOVA, Pseudo-F = 9.46; p = 0.001). The highest values of abundance and richness were observed in the lateral compartment, this result is mainly related to the presence of aquatic macrophytes in this region, because the analysis of partial RDA indicated that limnological variables explained only 11% of this variation (Pseudo-F = 2.08, p = 0.001). Conclusions The results suggest that the seasonality of the semiarid is an important factor in the temporal dynamics of the limnological variables, while the aquatic macrophytes play an important role in the spatial distribution of the microcrustacean assembly.

Drainage network extraction of Brazilian semiarid region with potential flood indication areas

2014 ◽  
Author(s):  
Sergio Rosim ◽  
João Ricardo de Freitas Oliveira ◽  
Jussara de Oliveira Ortiz ◽  
Miguel Zanic Cuellar ◽  
Alexandre Copertino Jardim
Keyword(s):  
Semiarid Region ◽  
Drainage Network ◽  
Brazilian Semiarid

A New Species of Cordia sect. Gerascanthus (Cordiaceae) from a Brazilian Semiarid Region

2021 ◽  
Vol 26 (2) ◽  
Author(s):  
Luan Pedro-Silva ◽  
Thaynara Sousa Silva ◽  
José Iranildo Miranda De Melo
Keyword(s):  
New Species ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
A New Species

Aspectos epidemiológicos e clínicos da febre chikungunya em um município do semiárido brasileiro / Epidemiological and clinical aspects of chikungunya fever in a municipality in the Brazilian semiarid region

2021 ◽  
Vol 7 (7) ◽  
pp. 69081-69099
Author(s):  
Tatiane Aparecida Queiroz ◽  
Francisca Patrícia Barreto De Carvalho ◽  
Alfredo Marcelo Grigio ◽  
Weslley Misael Bezerra Damasio ◽  
Lara Candice Costa de Morais Leonez ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Clinical Aspects ◽  
Chikungunya Fever ◽  
Brazilian Semiarid

Subterranean “oasis” in the Brazilian semiarid region: neglected sources of biodiversity

2021 ◽  
Author(s):  
Diego de M. Bento ◽  
Marconi Souza-Silva ◽  
Alexandre Vasconcellos ◽  
Bruno C. Bellini ◽  
Xavier Prous ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Brazilian Semiarid

scholarly journals THERMOREGULATORY RESPONSES OF GOATS REARED IN THE BRAZILIAN SEMIARID REGION

2019 ◽  
pp. 62-68
Author(s):  
Laylson da Silva Borges ◽  
Geandro Carvalho Castro ◽  
João Lopes Anastácio Filho ◽  
Isak Samir de Sousa Lima ◽  
Flávio Carvalho de Aquino ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Thermoregulatory Responses ◽  
Brazilian Semiarid

scholarly journals Ethnopedological Studies to Characterize Neosols at the Brazilian Semiarid Region

2019 ◽  
Vol 11 (4) ◽  
pp. 536
Author(s):  
Jucirema Ferreira da Silva ◽  
Jeane Cruz Portela ◽  
Nildo da Silva Dias ◽  
Cezar Augusto Medeiros Rebouças ◽  
Francisco Ernesto Sobrinho ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Agricultural Soils ◽  
Close Relation ◽  
Soil Types ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Soil Landscape ◽  
Chemical Attributes ◽  
Pasture Area ◽  
Physical And Chemical

The ethnopedological approach to soil characterization presents great challenges, since the understanding of the systems occurs through the knowledge acquired by the man in his coexistence with agroecosystems. The aim of the present research was to characterize the agricultural soils through morphological, physical and chemical analysis, using ethnopedological studies in the ‘Santa Agostinha’ Settlement Project, Caraúbas-RN, Brazil. Five areas were defined for study in the soil/landscape relation: i) area with cashew cultivation; ii) area of pasture; iii) area of crops in consortium; iv) agroforestry; and v) preserved forest, used as the reference. Participatory workshops, exchanges and classifications (from the locals and formal) were carried out with the analysis of the morphological, physical and chemical attributes of the studied soils in the layers of 0.00-0.10, 0.10-0.20 and 0.20-0.30 m. The results of the ethicist classification, based on the attributes evaluation were: Quartzarenic latosol NEOSOL (cashew area); Regolitic euthrofic NEOSOL (pasture area); Ortic quartzarenic fragiudult NEOSOL (intercropping area); typical quartzarenic ortic NEOSOL (agroforestry area and typical hydromorphic quartzarenic NEOSOL that presented a close relation with the emicist classification (from the local people). The observation of the different soil types in the landscape, due to the stratification of the environments, allowed the growers to identify characteristics associated with soil potentials and restrictions and, consequently, the correct management to be adopted. The experiences of local growers in the participatory workshops provided an exchange of popular and scientific knowledge, as well as new perspectives of coexistence with the semiarid.

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