scholarly journals Humic fractions as indicators of soil organic matter responses to clear-cutting in the mountain and lowland conditions of south-western Poland

2021 ◽  
Author(s):  
Elzbieta Jamroz ◽  
Maria Jerzykiewicz
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Negative Impact ◽  
Forest Harvesting ◽  
Temperate Climate ◽  
Mountain Forest ◽  
Semiquinone Radical ◽  
Mountain Regions ◽  
Clear Cutting ◽  
Humic Fractions

Clear-cutting means forest removing (stem only) and is the most common type of forest harvesting but undoubtedly has a negative impact on the C budget in soils. This work aimed to describe responses of soil organic matter in the forest soils to forest removing under temperate climate conditions of lowland and mountain regions in south-western Poland. Using advanced instrumental analysis, like EPR, 1H NMR and FT-IR spectroscopy it has been found that clear-cutting, alters C cycling and accelerates decomposition in the forest floor leading to loss of humic fractions in the investigated soils. In the mountain forests the more labile, low-molecular fulvic fraction decreased as the effect of harvesting practice. The transformation of organic matter after clear-cutting resulted in the loss of less humified organic matter containing humic substances of less polymerised molecules. Analysis of the semiquinone radical structures and concentrations showed a decrease in radical concentration observed for HA from mountain clear-cut areas compare to the undisturbed forest. Results presented in this paper have proved less aliphatic character of humic acid molecules from the lowlands, compared to the mountain forest as the effect of clear-cutting. Harvesting practices in mountain regions should be approached with particular care due to the risk of erosion of exposed surfaces and soils containing less humified and less stable organic matter than in the lowlands. Humic fractions of higher solubility, less stability and tendency to migrate through the soil profile may favour the leaching of nutrients and consequently cause the eutrophication of wate

scholarly journals Humic fractions as indicators of soil organic matter responses to clear-cutting in the mountain and lowland conditions of south-western Poland

2021 ◽  
Author(s):  
Elzbieta Jamroz ◽  
Maria Jerzykiewicz
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Negative Impact ◽  
Forest Harvesting ◽  
Temperate Climate ◽  
Mountain Forest ◽  
Semiquinone Radical ◽  
Mountain Regions ◽  
Clear Cutting ◽  
Humic Fractions

Clear-cutting means forest removing (stem only) and is the most common type of forest harvesting but undoubtedly has a negative impact on the C budget in soils. This work aimed to describe responses of soil organic matter in the forest soils to forest removing under temperate climate conditions of lowland and mountain regions in south-western Poland. Using advanced instrumental analysis, like EPR, 1H NMR and FT-IR spectroscopy it has been found that clear-cutting, alters C cycling and accelerates decomposition in the forest floor leading to loss of humic fractions in the investigated soils. In the mountain forests the more labile, low-molecular fulvic fraction decreased as the effect of harvesting practice. The transformation of organic matter after clear-cutting resulted in the loss of less humified organic matter containing humic substances of less polymerised molecules. Analysis of the semiquinone radical structures and concentrations showed a decrease in radical concentration observed for HA from mountain clear-cut areas compare to the undisturbed forest. Results presented in this paper have proved less aliphatic character of humic acid molecules from the lowlands, compared to the mountain forest as the effect of clear-cutting. Harvesting practices in mountain regions should be approached with particular care due to the risk of erosion of exposed surfaces and soils containing less humified and less stable organic matter than in the lowlands. Humic fractions of higher solubility, less stability and tendency to migrate through the soil profile may favour the leaching of nutrients and consequently cause the eutrophication of waters.

scholarly journals Impact of forest harvesting on water quality and fluorescence characteristics of dissolved organic matter in eastern Canadian Boreal Shield lakes in summer

2015 ◽  
Vol 12 (23) ◽  
pp. 6999-7011 ◽  
Author(s):  
P. Glaz ◽  
J.-P. Gagné ◽  
P. Archambault ◽  
P. Sirois ◽  
C. Nozais
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Forest Harvesting ◽  
Spectroscopic Techniques ◽  
Clear Cutting ◽  
Fluorescence Measurements ◽  
Fluorescence Characteristics ◽  
Boreal Shield ◽  
Shield Lakes

Abstract. Forestry activities in the Canadian Boreal region have increased in the last decades, raising concerns about their potential impact on aquatic ecosystems. Water quality and fluorescence characteristics of dissolved organic matter (DOM) were measured over a 3-year period in eight eastern Boreal Shield lakes: four lakes were studied before, 1 and 2 years after forest harvesting (perturbed lakes) and compared with four undisturbed reference lakes (unperturbed lakes) sampled at the same time. ANOVAs showed a significant increase in total phosphorus (TP) in perturbed lakes when the three sampling dates were considered and in DOC concentrations when considering 1 year before and 1 year after the perturbation only. At 1 year post-clear cutting DOC concentrations were about 15 % greater in the perturbed lakes at ~ 15 mgC L−1 compared to 12.5 mgC L−1 in the unperturbed lakes. In contrast, absorbance and fluorescence measurements showed that all metrics remained within narrow ranges compared to the range observed in natural waters, indicating that forest harvesting did not affect the nature of DOM characterized with spectroscopic techniques. These results confirm an impact of forestry activities 1 year after the perturbation. However, this effect seems to be mitigated 2 years after, indicating that the system shows high resilience and may be able to return to its original condition in terms of water quality parameters assessed in this study.

Effect of grassland harvesting frequency and N-fertilization on stocks and dynamics of soil organic matter in the temperate climate

2018 ◽  
Vol 64 (14) ◽  
pp. 1925-1931 ◽  
Author(s):  
Anja Nüsse ◽  
Deborah Linsler ◽  
Ralf Loges ◽  
Thorsten Reinsch ◽  
Friedhelm Taube ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
N Fertilization ◽  
Temperate Climate

Soil organic matter dynamics after afforestation of mountain grasslands in both a Mediterranean and a temperate climate

2016 ◽  
Vol 131 (3) ◽  
pp. 267-280 ◽  
Author(s):  
Carlos Ortiz ◽  
Eduardo Vázquez ◽  
Agustín Rubio ◽  
Marta Benito ◽  
Andreas Schindlbacher ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Temperate Climate ◽  
Soil Organic Matter Dynamics ◽  
Organic Matter Dynamics ◽  
Mountain Grasslands

A regional paleolimnological assessment of the impact of clear-cutting on lakes from the west coast of Vancouver Island, British Columbia

2001 ◽  
Vol 58 (3) ◽  
pp. 479-491 ◽  
Author(s):  
Kathleen Laird ◽  
Brian Cumming ◽  
Rick Nordin
Keyword(s):  
Organic Matter ◽  
Species Composition ◽  
West Coast ◽  
Forest Harvesting ◽  
Diatom Species ◽  
The West ◽  
Clear Cutting ◽  
Before And After ◽  
The Impact ◽  
Reference Lakes

The impact of forest harvesting on lakes within the temperate rainforest on the west coast of Vancouver Island was examined in a paleolimnological study of four lakes that had 35–92% of their watersheds progressively clear-cut over a period of 15–30 years (impact lakes) and four lakes that had experienced little or no known anthropogenic disturbance in their watersheds (reference lakes). Changes in diatom species composition and percent organic matter in the 210Pb-dated sediment cores were compared over the last 100 years in each of the impact lakes before and after the onset of forest harvesting, which began in 1950, and before and after 1950 in the four reference lakes. Only one impact lake showed significant changes in percent organic matter. Significant changes (p < 0.05) in species composition following forest harvesting were detected in all four impact lakes and in one of the four reference lakes. However, the changes in diatom species composition following clear-cutting in the impact lakes were small, with changes in the relative abundance of the most common species being maximally 20%, but more typically 3–10%.

A regional paleolimnological assessment of the impact of clear-cutting on lakes from the central interior of British Columbia

2001 ◽  
Vol 58 (3) ◽  
pp. 492-505 ◽  
Author(s):  
Kathleen Laird ◽  
Brian Cumming
Keyword(s):  
British Columbia ◽  
Organic Matter ◽  
Species Composition ◽  
Sediment Cores ◽  
Forest Harvesting ◽  
Diatom Species ◽  
Clear Cutting ◽  
Before And After ◽  
The Impact ◽  
Reference Lakes

The impact of forest harvesting on lakes within the central interior of British Columbia was examined in a paleolimnological study of six lakes that had 28–82% of their watersheds clear-cut (impact lakes) and four lakes that had experienced no logging in their watersheds (reference lakes). Changes in diatom species composition and percent organic matter in 210Pb-dated sediment cores were compared over the last 80 years in each of the impact lakes before and after the onset of forest harvesting and, in the reference lakes, before and after 1960 (the average onset of logging in five of the six impact lakes) and before and after 1975 (the onset of logging in one impact lake). Significant changes in species composition of diatoms following forest-harvesting activities were detected in four of the impact lakes and three of the reference lakes; however, the changes in diatom species composition were small, with changes in the relative abundance of the most common species being at most 11%. Significant increases in the percent organic matter after 1960 were found in one impact lake and three reference lakes; again these changes were small, with increases of 2–5%.

Analysis of Soil Nutrient Content Characteristic for Inductive Transformed Low-Quality Forest in Greater Higgnan Mountains

2011 ◽  
Vol 361-363 ◽  
pp. 1765-1771
Author(s):  
Hao Ji ◽  
Xi Bin Dong
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Matter Content ◽  
Soil Nutrient ◽  
Nutrient Content ◽  
Potassium Content ◽  
Korean Pine ◽  
Forest Gap ◽  
Clear Cutting ◽  
Soil Nutrient Content

In This paper, the miscellaneous tree low-quality forest and Oak low-quality forest in the Greater Hinggan Mountains region were transformed inductively by planting Siberian Korean pine, Mongolica, and Larch, respectively. With the method of using different bandwidth and gap area, the soil nutrient characteristics were changed. The results indicated that the pH of soil increased slightly by different ways of induced transformation, but the variance was not significant (P﹤0.05). After reforming the induced soil organic matter content was balanced, while the basic content of hydrolysable nitrogen increased, and the availiable phosphorus decreased. Soil rapidly-available potassium content in Oak coppice was reduced but raised in the region of secondary performed miscellaneous wood. The variation coefficient of Siberia Korean pine was the largest with different soil pH value of various bandwidth and soil nutrient content (except for availiable phosphorus). Content of soil organic matter and hydrolysis nitrogen, phosphorus and potassium content are significantly positive correlated. At the same time, clear-cutting bandwidth and soil organic matter and hydrolysis nitrogen content are significantly negative correlated. During the transformation of forest gap in the sunny and shady slope, smaller area of forest gap owed the larger soil nutrient content. Generally, soil nutrient content in sunny slope is higher than the shady one.

Sign in / Sign up

Export Citation Format

Share Document