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

Author(s):  
Angelo Marcon Pezda ◽  
Lucilene Inês Jacoboski ◽  
André Luís Luza ◽  
Sandra Maria Hartz


2013 ◽  
Vol 103 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Rafael A. Dias ◽  
Vinicius A. G. Bastazini ◽  
Maycon S. S. Gonçalves ◽  
Felipe C. Bonow ◽  
Sandra C. Müller

Afforestation of temperate grasslands with fast-growing trees for industrial pulpwood production is spreading in South America. Despite high afforestation rates resulting from governmental policies that stimulate pulpwood production in grasslands of southern Brazil and Uruguay, the impact of this activity on biodiversity remains to be properly assessed. We used an Impact-Reference study design to evaluate how grassland afforestation affects the composition of grassland bird assemblages. We sampled eucalyptus plantations and neighboring natural grasslands in southern Brazil from 2006-2009, and relied on nested sampling and analysis to separate the effects of afforestation from the natural variability of grasslands. We recorded a significant difference in composition between assemblages from grasslands and tree plantations. Species adapted to open, treeless areas tended to be negatively affected in relation to edge or forest birds in eucalyptus plantations. Afforestation is systematically replacing the bird assemblage of hilltop grasslands by a collection of common edge and forest species that occur in nearby riverine and hillside forests. Although most grassland birds negatively affected by tree plantations are common and widespread, observed and predicted afforestation rates in southeastern South America may result in regional population reductions in the near future.



2015 ◽  
Vol 39 (4) ◽  
pp. 1003-1014 ◽  
Author(s):  
Elcio Liborio Balota ◽  
Ines Fumiko Ubukata Yada ◽  
Higo Furlan Amaral ◽  
Andre Shigueyoshi Nakatani ◽  
Mariangela Hungria ◽  
...  

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.



Hydrobiologia ◽  
2017 ◽  
Vol 808 (1) ◽  
pp. 283-300 ◽  
Author(s):  
Marina Schmidt Dalzochio ◽  
Eduardo Périco ◽  
Samuel Renner ◽  
Göran Sahlén


2021 ◽  
pp. e00457
Author(s):  
Xaysatith Souliyavongsa ◽  
Alain Pierret ◽  
Vidhaya Trelo-ges ◽  
Supat Isarangkool Na Ayutthaya ◽  
Saysongkham Sayavong ◽  
...  


2002 ◽  
Vol 164 (1-3) ◽  
pp. 257-263 ◽  
Author(s):  
C.Ken Smith ◽  
Francisco de Assis Oliveira ◽  
Henry L Gholz ◽  
Anadilza Baima


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


2010 ◽  
Vol 260 (7) ◽  
pp. 1156-1163 ◽  
Author(s):  
Graziele Hernandes Volpato ◽  
Vitor Miranda Prado ◽  
Luiz dos Anjos


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