Restoration and Canopy Type Influence Soil Microflora in a Ponderosa Pine Forest

Boyle, Sarah I.; Hart, Stephen C.; Kaye, Jason P.; Waldrop, Mark P.

doi:10.2136/sssaj2005.0029

Cited by 44 publications

(31 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As alterações nessas enzimas nas diferentes coberturas vegetais podem ser explicadas pelo fato de elas atuarem na degradação de carboidratos do solo; a β-glucosidase atua na hidrólise de maltose e celubiose e a β-galactosidase pela hidrólise de melibiose e lactose, os quais são importantes fontes de energia metabólica para microbiota do solo (Eivazi & Tabatabai, 1988;Boyle et al, 2005). A arilsulfatase, por estar presente em fungos na forma de ésteres sulfatos, também participa como componente da formação da biomassa microbiana do solo (Bandick & Dick, 1999).…”

Section: Resultsunclassified

Atributos físicos, químicos e biológicos de Latossolo Amarelo na conversão de floresta primária para seringais na Amazônia

Zaninetti

Moreira

Moraes

2016

Pesq. agropec. bras.

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi quantificar os efeitos da substituição da floresta primária por seringal (Hevea spp.), quanto aos atributos físicos, químicos e biológicos de um Latossolo Amarelo distrófico na Amazônia Central. Amostras de solo foram coletadas na profundidade de 0,0-0,1 m, em área de floresta primária e em seringais de 2,0 ha com idades de plantio de 6, 16, 18, 19, 20 e 45 anos. O reflorestamento das áreas por seringais não minimiza os efeitos negativos da retirada da floresta primária, com aumento do quociente metabólico e redução nos teores de carbono orgânico, carbono da biomassa microbiana (CBM), nitrogênio da biomassa microbiana (NBM), porosidade, enzimas (arilsulfatase, β-glucosidase e β-galactosidase) e substâncias húmicas (ácidos húmicos e fúlvicos e humina) do solo. O CBM e o NBM variaram de 291,97 a 615,27 µg g -1 e de 65,76 a 98,58 µg g, e mostram-se como os atributos mais sensíveis às alterações decorrentes da substituição da floresta primária por seringais.Termos para indexação: Hevea, carbono da biomassa microbiana, enzimas do solo, nitrogênio da biomassa microbiana, qualidade do solo, substâncias húmicas. Physical, chemical, and biological attributes of a Xanthic Oxisol after forest conversion to rubber tree plantation in the AmazonAbstract -The objective of this work was to quantify the effects of primary forest conversion into rubber tree plantation (Hevea spp.), concerning the physical, chemical, and microbiological attributes of a Xanthic Oxisol in the Central Amazon. Soil samples were collected at the 0.0-0.1 m depth in areas of the primary forest and of adjacent rubber tree plantations covering an area of 2.0 ha, with plant ages of 6, 16, 18, 19, 20, and 45 years. The reforestation with rubber tree plantation does not minimize the negative effects of the removal of the primary forest, with increased metabolic quotient and reduction of organic carbon, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), porosity, enzymes (arilsulfatase, β-glucosidase, and β-galactosidase), and humic substances (humic and fulvic acids, and humin) in the soil. MBC and MBN ranged from 291.97 to 615.27 µg g -1 and from 65.76 to 98.58 µg g -1 , respectively, and they are the most sensitive attributes to alterations resulting from the replacement of primary forest by rubber tree plantations.

show abstract

Section: Resultsunclassified

Atributos físicos, químicos e biológicos de Latossolo Amarelo na conversão de floresta primária para seringais na Amazônia

Zaninetti

Moreira

Moraes

2016

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Thinning only did not alter our microbial populations in either the forest floor or mineral soil, and there was no effect on microbial activities we measured. Boyle et al [74] also found little evidence of thinning impacts on microorganisms in mineral soil from the same study site used by Kaye and colleagues [21]. Microbial response to thinning in other forest types has been shown to be quite variable, from reduced microbial biomass without altering the population structure [44], to structural differences without altering microbial biomass [75][76][77], to altered biomass and structure [78].…”

Section: Discussionmentioning

confidence: 96%

“…A meta-analysis by Johnson and Curtis [80] concluded that changes in total mineral soil C and N contents in coniferous stands following thinning were the result of harvest method and treatment of residues. Total C and N contents in the mineral soil have initially been unaffected following restoration treatments that included thinning and prescribed fire in other ponderosa pine stands in northern Arizona [6,79], but long-term increases in total soil N have also been reported [31,74]. The limited effects of the FFS thinning treatments are due in part to modest stand density reductions from a single application.…”

Section: Discussionmentioning

confidence: 99%

Short-Term Belowground Responses to Thinning and Burning Treatments in Southwestern Ponderosa Pine Forests of the USA

Overby

Hart

2016

Forests

View full text Add to dashboard Cite

Microbial-mediated decomposition and nutrient mineralization are major drivers of forest productivity. As landscape-scale fuel reduction treatments are being implemented throughout the fire-prone western United States of America, it is important to evaluate operationally how these wildfire mitigation treatments alter belowground processes. We quantified these important belowground components before and after management-applied fuel treatments of thinning alone, thinning combined with prescribed fire, and prescribed fire in ponderosa pine (Pinus ponderosa) stands at the Southwest Plateau, Fire and Fire Surrogate site, Arizona. Fuel treatments did not alter pH, total carbon and nitrogen (N) concentrations, or base cations of the forest floor (O horizon) or mineral soil (0-5 cm) during this 2-year study. In situ rates of net N mineralization and nitrification in the surface mineral soil (0-15 cm) increased 6 months after thinning with prescribed fire treatments; thinning only resulted in net N immobilization. The rates returned to pre-treatment levels after one year. Based on phospholipid fatty acid composition, microbial communities in treated areas were similar to untreated areas (control) in the surface organic horizon and mineral soil (0-5 cm) after treatments. Soil potential enzyme activities were not significantly altered by any of the three fuel treatments. Our results suggest that a variety of one-time alternative fuel treatments can reduce fire hazard without degrading soil fertility.

show abstract

“…The tree removal increases insolation to the ground and changes soil water regime by altering the rates of evaporation and transpiration, and eliminating interception of precipitation by the canopy. These relatively immediate changes in soil microclimate may directly alter the composition and the activity of the soil microflora (Boyle et al 2005). On the other hand, retaining of fallen trees and coarse woody debris on the plot also leads to changes in ecological conditions as the fallen trees shadows affect the water and temperature regimes, and there is a considerable amount of organic material lying on the ground and gradually decomposing.…”

Section: Soil and Water Res 3 2008 (Special Issue 1): S74-s80 Originmentioning

confidence: 99%

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Gömöryová¹,

Střelcová²,

Škvarenina³

et al. 2008

Soil & Water Res.

View full text Add to dashboard Cite

: In November 2004, forest stands in the Tatra National Park (TANAP) were affected by windthrow and in July 2005, the wildfire broke out on a part of the affected area. The objective of this study is to evaluate the impact of the windthrow and fire disturbances on soil microbial activity. Basal and potential soil respiration, N-mineralisation, catalase activity, soil microbial biomass, and cellulase activity were measured in soil samples taken from the A-horizon (depth of 0–10 cm) along 100 m transects established on 4 plots (reference site, burnt, non-extracted, and extracted sites) in October 2006. Some soil microbial characteristics exhibited a high spatial variability, especially microbial biomass and N-mineralisation. Significant differences in soil microbial characteristics (especially basal soil respiration and catalase activity) between plots were found. Generally, the highest microbial activity was revealed on the plot affected by fire. Soil microbial activity was similar on the extracted and non-extracted sites.

show abstract

Restoration and Canopy Type Influence Soil Microflora in a Ponderosa Pine Forest

Cited by 44 publications

References 61 publications

Atributos físicos, químicos e biológicos de Latossolo Amarelo na conversão de floresta primária para seringais na Amazônia

Atributos físicos, químicos e biológicos de Latossolo Amarelo na conversão de floresta primária para seringais na Amazônia

Short-Term Belowground Responses to Thinning and Burning Treatments in Southwestern Ponderosa Pine Forests of the USA

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Contact Info

Product

Resources

About