scholarly journals Impacts of forest conversion and agriculture practices on water pathways in Southern Brazil

2018 ◽  
Vol 32 (15) ◽  
pp. 2304-2317 ◽  
Author(s):  
Jérémy Robinet ◽  
Jean P. G. Minella ◽  
Cláudia A. P. de Barros ◽  
Alexandre Schlesner ◽  
Andreas Lücke ◽  
...  
Keyword(s):  
Forest Conversion ◽  
Southern Brazil

Changes in Macrofungal Communities Following Forest Conversion into Tree Plantations in Southern Brazil

Biotropica ◽  
2015 ◽  
Vol 47 (5) ◽  
pp. 616-625 ◽  
Author(s):  
Claudia P. Paz ◽  
Mônica Gallon ◽  
Jair Putzke ◽  
Gislene Ganade
Keyword(s):  
Tree Plantations ◽  
Forest Conversion ◽  
Southern Brazil

scholarly journals SOIL QUALITY IN RELATION TO FOREST CONVERSION TO PERENNIAL OR ANNUAL CROPPING IN SOUTHERN BRAZIL

2015 ◽  
Vol 39 (4) ◽  
pp. 1003-1014 ◽  
Author(s):  
Elcio Liborio Balota ◽  
Ines Fumiko Ubukata Yada ◽  
Higo Furlan Amaral ◽  
Andre Shigueyoshi Nakatani ◽  
Mariangela Hungria ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Microbial Activity ◽  
Soil Quality ◽  
Conventional Tillage ◽  
Soil Disturbance ◽  
Forest Conversion ◽  
No Tillage ◽  
Southern Brazil ◽  
Soil Microbial ◽  
C And N

Many forested areas have been converted to intensive agricultural use to satisfy food, fiber, and forage production for a growing world population. There is great interest in evaluating forest conversion to cultivated land because this conversion adversely affects several soil properties. We examined soil microbial, physical, and chemical properties in an Oxisol (Latossolo Vermelho distrófico) of southern Brazil 24 years after forest conversion to a perennial crop with coffee or annual grain crops (maize and soybeans) in conventional tillage or no-tillage. One goal was to determine which soil quality parameters seemed most sensitive to change. A second goal was to test the hypothesis that no-tillage optimized preservation of soil quality indicators in annual cropping systems on converted land. Land use significantly affected microbial biomass and its activity, C and N mineralization, and aggregate stability by depth. Cultivated sites had lower microbial biomass and mineralizable C and N than a forest used as control. The forest and no-tillage sites had higher microbial biomass and mineralizable C and N than the conventional tillage site, and the metabolic quotient was 65 and 43 % lower, respectively. Multivariate analysis of soil microbial properties showed a clear separation among treatments, displaying a gradient from conventional tillage to forest. Although the soil at the coffee site was less disturbed and had a high organic C content, the microbial activity was low, probably due to greater soil acidity and Al toxicity. Under annual cropping, microbial activity in no-tillage was double that of the conventional tillage management. The greater microbial activity in forest and no-tillage sites may be attributed, at least partially, to lower soil disturbance. Reducing soil disturbance is important for soil C sequestration and microbial activity, although control of soil pH and Al toxicity are also essential to maintain the soil microbial activity high.

Validation of a screening instrument for postpartum depression in Southern Brazil

2009 ◽  
pp. 1-11
Author(s):  
Carlos Zubaran ◽  
Katia Foresti ◽  
Marina Verdi Schumacher ◽  
Aline Luz Amoretti ◽  
Lucia Cristina Muller ◽  
...  
Keyword(s):  
Postpartum Depression ◽  
Screening Instrument ◽  
Southern Brazil

LATE QUATERNARY GEOLOGICAL HISTORY OF RIO GRANGE DO SUL COASTAL PLAIN, SOUTHERN BRAZIL

2000 ◽  
Vol 30 (3) ◽  
pp. 474-476 ◽  
Author(s):  
LUIZ JOSÉ TOMAZELLI ◽  
SÉRGIO REBELLO DILLENBURG ◽  
JORGE ALBERTO VILLWOCK
Keyword(s):  
Coastal Plain ◽  
Late Quaternary ◽  
Geological History ◽  
Southern Brazil ◽  
History Of

Cyclone Bomb hits Southern Brazil in 2020

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Ricardo Gobato ◽  
Alireza Heidari
Keyword(s):  
High Pressure ◽  
Atmospheric Pressure ◽  
High Speed ◽  
Satellite Images ◽  
The State ◽  
Southern Brazil ◽  
Santa Catarina ◽  
High Area ◽  
South Of Brazil ◽  
Rapid Drop

An “explosive extratropical cyclone” is an atmospheric phenomenon that occurs when there is a very rapid drop in central atmospheric pressure. This phenomenon, with its characteristic of rapidly lowering the pressure in its interior, generates very intense winds and for this reason it is called explosive cyclone, bomb cyclone. With gusts recorded of 116 km/h, atmospheric phenomenon – “cyclone bomb” (CB) hit southern Brazil on June 30, the beginning of winter 2020, causing destruction in its influence over. One of the cities most affected was Chapecó, west of the state of Santa Catarina. The satellite images show that the CB generated a low pressure (976 mbar) inside it, generating two atmospheric currents that moved at high speed. In a northwest-southeast direction, Bolivia and Paraguay, crossing the states of Parana and Santa Catarina, and this draft that hit the south of Brazil, which caused the destruction of the affected states.  Another moving to Argentina, southwest-northeast direction, due to high area of high pressure (1022 mbar). Both enhanced the phenomenon.

COVID-19 Seroprevalence in Military Police Forces, Southern Brazil

2020 ◽  
Author(s):  
Alessandro C. Pasqualotto ◽  
Paula de Castro Pereira ◽  
Daiane F. Dalla Lana ◽  
Alexandre V. Schwarzbold ◽  
Marco Ribeiro ◽  
...  
Keyword(s):  
Southern Brazil ◽  
Military Police ◽  
Police Forces

Risk factors for low birth weight in a rural community in southern Brazil

1996 ◽  
Vol 72 (6) ◽  
pp. 369-373 ◽  
Author(s):  
Ricardo Halpern ◽  
Earl S. Schaefer ◽  
Airton S. Pereira ◽  
Ernesto M. Arnt ◽  
Jandira Pureza Valente Bezerra ◽  
...  
Keyword(s):  
Risk Factors ◽  
Birth Weight ◽  
Low Birth Weight ◽  
Rural Community ◽  
Southern Brazil
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