The effects of thinning and soil disturbance on enzyme activities under pitch pine soil in New Jersey Pinelands

Geng, Yan; Dighton, John; Gray, Dennis M.

doi:10.1016/j.apsoil.2012.07.001

Cited by 59 publications

(39 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results are consistent with those from a study in a Mediterranean pine forest, which showed decreases in b-glucosidase, urease, phosphatase and dehydrogenase activities after 8 years of thinning (Wic Baena et al, 2013). Similar results were also observed in the New Jersey Pine Barrens, where the cellulase and phenol oxidase activities decreased significantly after 1 year of thinning (Geng et al, 2012). Variations in the activities of the enzymes that degrade major soil organic matter components have been linked to shifts in decomposition rates and soil carbon storage, and the observed differences may indicate a reduction in the decomposition rates of soil organic matter and carbon cycling between the organic matter pools in the thinned sites (Xu et al, 2015;Li et al, 2016).…”

Section: Soil Enzyme Activitiessupporting

confidence: 82%

“…However, long-term thinning practices have been reported to increase soil carbon by enhancing root system decomposition in thinned trees and understory growth after canopy removal (Selig et al, 2008). Despite an abundance of studies about the effects of thinning on the total SOC of the forest floor, few have examined how thinning influences labile carbon pools and carbon cycle-related enzymes in the mineral soil (Chiang et al, 2010;Geng et al, 2012;Chen et al, 2015), and the results are still controversial. For example, Bolat (2014) and found thinning increased labile organic carbon, but decreases have been reported in other studies (Schilling et al, 1999;Hassett and Zak, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…The soil b-glucosidase activity (NAG) was measured using a substrate of pNPG and expressed in mg p-nitrophenol (pNP) g À1 soil h À1 (Geng et al, 2012). The invertase and cellulase activities were determined using a substrate of carboxymethylcellulose and sucrose, and their activities were expressed in mg glucose g À1 soil (Schinner and Vonmersi, 1990;Deng and Tabatabai, 1994).…”

Section: Chemical and Biochemical Analysesmentioning

confidence: 99%

See 2 more Smart Citations

Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations

Chen

Wang

et al. 2016

Applied Soil Ecology

108

View full text Add to dashboard Cite

Section: Soil Enzyme Activitiessupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Chemical and Biochemical Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations

Chen

Wang

et al. 2016

Applied Soil Ecology

108

View full text Add to dashboard Cite

“…Studies also showed that forest thinning and soil disturbance can decrease protease and arylsulfatase activity but may not have affect glucosaminase, glucosidase and acid phosphatase activities. Cellulase, phenoloxidase, arylsulfatase and protease correlate after thinning with active C and peroxidase activity is negatively correlated to active C. Peroxidase, phenol oxidase, arysulfatase and protease activities correlate with soil microbial nitrogen (Geng et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park

Hanajík

Gáfriková

Zvarík

2017

Central European Forestry Journal

View full text Add to dashboard Cite

The aim of the study was to compare the effect of windthrow treatments established after the windstorm in 2004 on the activity of enzyme dehydrogenase (DHA) in forest topsoils. We also focused on the effect of the recent windthrow (May 2014) on the DHA in topsoil. Soil samples were collected in July 2014 from four sites in the Tatra National Park: EXT -tree trunks and wood debris extracted after the windstorm in 2004, NEX -area left for self-regeneration after the windstorm in 2004, REX -tree trunks and wood debris extracted after the windstorm (May 2014), REN -Norway spruce stand set as a control plot. We measured pH, dry weight %, soil organic matter (SOM), carbon content in microbial biomass (C bio ) and DHA. Dehydrogenase activity at studied plots was the lowest at the EXT plot and the highest values were measured at the REN plot. DHA at NEX was similar to REN suggesting comparable ecological conditions at these plots comparing to EXT. Carbon content in microbial biomass at plots reflected intensity of dehydrogenase activity in sequence EXT < REX < NEX < REN.

show abstract

“…Forest ecosystems experience natural disturbances such as fires and wind and interventions that are part of forest management (thinning, forest logging) (Geng et al 2012). Thinning changes the conditions of the forest microclimate (Ma et al 2010), which directly and indirectly affects the properties of the soil.…”

mentioning

confidence: 99%

Effect of thinning on the amount of mineral nitrogen

Holík¹,

Rosíková²,

Vranová³

2018

J. For. Sci.

View full text Add to dashboard Cite

Holík L., Rosíková J., Vranová V. (2018): Effect of thinning on the amount of mineral nitrogen. J. For. Sci., 64: 289-295.The soil nitrogen cycle and the dynamics of its transformation are closely related to the functioning of the forest ecosystem. This cycle, and the availability of nitrogen as a necessary nutrient in the soil, can be influenced by the process of thinning. The aim of this study is to describe the impact of silvicultural measures on the content of ammonium and nitrate nitrogen in forest soil. Attention is paid to the organic (spruce treatments) and organomineral horizon (beech treatments) in which the transformation of soil nitrogen is most pronounced. Spruce treatments at the Rájec-Němčice area and beech stands at the Březina area, both in the region of Drahanská vrchovina (Czech Republic), were selected for the experiments. Two variants of thinning thinning from below and thinning from above, were performed in the spruce treatments, and thinning from above was performed in the beech treatments. Control variants with no silvicultural measures were defined in both treatments. The amount of ammonium nitrogen in the spruce treatments with thinning from above was in most cases higher than in the other variants. On the contrary, in variant with thinning from below, the ammonium nitrogen content decreased. In terms of the nitrate nitrogen content, the values were generally higher for variants with silvicultural measures than for the control variants. In the beech treatments, the amount of ammonium nitrogen increased and, on the contrary, there was a small decrease in the amount of nitrate nitrogen due to the effect of thinning from above. The differences between thinning from above and the control variants in the beech treatments were less noticeable than in the spruce treatments. Overall, however, it can be said that the nitrogen content available to the vegetation increased. The results of the given experiment provide insight into the trends of nitrogen mineralization intensity in stands in which silvicultural measures are performed.

show abstract

The effects of thinning and soil disturbance on enzyme activities under pitch pine soil in New Jersey Pinelands

Cited by 59 publications

References 64 publications

Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations

Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations

Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park

Effect of thinning on the amount of mineral nitrogen

Contact Info

Product

Resources

About