scholarly journals Effects of Quercus rubra L. on soil properties and humus forms in 50-year-old and 80-year-old forest stands of Lombardy plain

2020 ◽  
Vol 77 (1) ◽  
Author(s):  
Chiara Ferré ◽  
Roberto Comolli
Keyword(s):  
Soil Properties ◽  
Quercus Rubra ◽  
Forest Stands ◽  
Humus Forms

Effects of conversion from vineyard to tree plantation on humus forms, soil organic carbon stock and other soil properties

2020 ◽  
Author(s):  
Chiara Ferré ◽  
Gianni Facciotto ◽  
Sara Bergante ◽  
Roberto Comolli
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Properties ◽  
Soil Texture ◽  
C:N Ratio ◽  
Tree Plantation ◽  
Humus Forms ◽  
Organic Horizons ◽  
Soc Stock ◽  
The Impact

<p>We explored the effects of conversion from vineyard to tree plantation on humus forms, soil organic carbon (SOC) stocks and other soil properties by sampling paired plots in a hilly area of Monferrato (Piedmont, Italy).</p><p>The study area is located at Rosignano Monferrato (AL) and includes a vineyard (VY) and a nearby 30-years-old tree plantation (TP) for wood production that replaced an existing vineyard, where eight poplar clones were consociated with other timber species (wild cherry, European ash, manna ash, deodar cedar). The area under study covers 3 ha and extends along a slighty-wavy slope with an average gradient of 15%; according to the WRB classification, soils are Calcaric Cambisols (Loamic).</p><p>The impact of land use change on soil properties was evaluated considering the spatial variability of soil characteristics, testing for autocorrelation among the model residuals. Soil sampling was performed from 3 layers (0-10 cm, 10-40 cm and 40-70 cm) at 61 and 69 points in the VY and the TP respectively, to characterize soil pH in water, organic carbon content and SOC stock, C:N ratio, soil texture and total carbonates. The common pedological origin of soils within the study area was verified and confirmed by comparability of soil texture and carbonates content of the deeper layer.</p><p>At TP the humus forms were described and classified; the organic horizons were sampled and analyzed for OC content determination.</p><p>Statistical analyses showed significant (p-value < 0.05) differences for all the investigated layers between the considered land uses with regard to pH, SOC stock and C:N ratio.</p><p>Our study provided evidence that: (1) the conversion from vineyard to tree plantation resulted in the appearance of organic horizons: the main humus forms in TP were Mull and Amphi; (2) 30 years of tree plantation strongly modified SOC stock, resulting in an increase of 26% in the first 70 cm, which became 42% if the organic layers were included; (2) soil acidification (pH difference of 0.4) and change in SOC type (C:N increase of 1) were also observed in TP compared to VY; and (3) the spatial distribution of soil properties in the VY were affected by erosive and depositional dynamics unlike the TP where vegetation counterbalance erosion.</p>

scholarly journals Soil microbiological properties and enzymatic activities of long-term post-fire recovery in dry and semiarid Aleppo pine (<i>Pinus halepensis</i> M.) forest stands

Solid Earth ◽  
2015 ◽  
Vol 6 (1) ◽  
pp. 243-252 ◽  
Author(s):  
J. Hedo ◽  
M. E. Lucas-Borja ◽  
C. Wic ◽  
M. Andrés-Abellán ◽  
J. de Las Heras
Keyword(s):  
Soil Properties ◽  
Enzyme Activities ◽  
Pinus Halepensis ◽  
Microbial Biomass Carbon ◽  
Aleppo Pine ◽  
Forest Stands ◽  
Fire Event ◽  
Total N ◽  
Soil Microbial ◽  
Silvicultural Treatments

Abstract. Wildfires affecting forest ecosystems and post-fire silvicultural treatments may cause considerable changes in soil properties. The capacity of different microbial groups to recolonise soil after disturbances is crucial for proper soil functioning. The aim of this work was to investigate some microbial soil properties and enzyme activities in semiarid and dry Aleppo pine (Pinus halepensis M.) forest stands. Different plots affected by a wildfire event 17 years ago without or with post-fire silvicultural treatments 5 years after the fire event were selected. A mature Aleppo pine stand, unaffected by wildfire and not thinned was used as a control. Physicochemical soil properties (soil texture, pH, carbonates, organic matter, electrical conductivity, total N and P), soil enzymes (urease, phosphatase, β-glucosidase and dehydrogenase activities), soil respiration and soil microbial biomass carbon were analysed in the selected forests areas and plots. The main finding was that long time after this fire event produces no differences in the microbiological soil properties and enzyme activities of soil after comparing burned and thinned, burned and not thinned, and mature plots. Moreover, significant site variation was generally seen in soil enzyme activities and microbiological parameters. We conclude that total vegetation recovery normalises post-fire soil microbial parameters, and that wildfire and post-fire silvicultural treatments are not significant factors affecting soil properties after 17 years.

Influence of soil properties on millipede (Diplopoda) communities in forest stands of various tree species

2021 ◽  
Vol 113 ◽  
pp. 103793
Author(s):  
Slavomír Stašiov ◽  
Vladimír Vician ◽  
Tibor Benčať ◽  
Vladimír Pätoprstý ◽  
Ivan Lukáčik ◽  
...  
Keyword(s):  
Soil Properties ◽  
Tree Species ◽  
Forest Stands

scholarly journals Comparison of macrofungi communities anti examination of macrofungi-plant interactions in forest stands in North Hungary

2005 ◽  
Vol 11 (2) ◽  
Author(s):  
L. Benedek ◽  
F. Pál-Fám ◽  
J. Nagy
Keyword(s):  
Soil Properties ◽  
Great Influence ◽  
Fungal Communities ◽  
Plant Interactions ◽  
Forest Types ◽  
Forest Stands ◽  
Plant Associations ◽  
Forestry Management ◽  
Layer Composition

Parallel phyto- and mycocoenological investigations have been made since 2001 in all characteristic forest types in Borzsony Mts., North Hungary. The main aim of this work was the examination of similarities between plant and fungal communities, as well as the plant—fungi connections within certain habitats. Among the total 381 macrofungi species documented, 330 occurred in the investigated 7 forest stands. Wood-inhabiting fungal communities of coniferous stands can be separated unambiguously from those of deciduous stands. Communities of deciduous stands can be divided into two subgroups: those fructifying in wet and in semidry stands. The main factors which influence the composition of wood inhabiting fungal communities seem to be, in decreasing order: (1) crown layer composition; and (2) soil properties (probably only humidity). Wood-inhabiting fungal communities do not show any relation with the underwood layer of particular plant associations. Amongst soil inhabiting fungal communities, three groups can be separated: (1) those of coniferous stands and alderwood; (2) those of the two climax stands; and (3) those of the two edaphic deciduous stands. Classification of these communities is similar to classification of plants of underwood layers. Probably both are dependent upon soil properties (humidity and pH) of particular habitats, but the range of mycorrhizal partners is also decisive for macrofungi communities. All investigated stands are under forestry management, with low quantity of dead and infected wood, so forestry management type may have a great influence in composition of both wood and soil saprotrophic fungal communities.

Organic Matter Added to Bareroot Nursery Beds Influences Soil Properties and Morphology of Fraxinus pennsylvanica and Quercus rubra Seedlings

New Forests ◽  
2006 ◽  
Vol 31 (2) ◽  
pp. 293-303 ◽  
Author(s):  
Anthony S. Davis ◽  
Douglass F. Jacobs ◽  
Kevyn E. Wightman ◽  
Zonda K. D. Birge
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Quercus Rubra ◽  
Fraxinus Pennsylvanica

scholarly journals Acidification of forest soils in the Hrubý Jeseník region

2011 ◽  
Vol 6 (No. 2) ◽  
pp. 83-90 ◽  
Author(s):  
D. Reininger ◽  
P. Fiala ◽  
T. Samek
Keyword(s):  
Air Pollution ◽  
Czech Republic ◽  
Soil Properties ◽  
Forest Soils ◽  
Forest Stands ◽  
Soil Horizons ◽  
The Czech Republic ◽  
Ph Values ◽  
Forest Region ◽  
Mg Content

The Hrub&yacute; Jesen&iacute;k Natural Forest Region (NFR) is a border mountain territory which belongs to the areas most heavily impacted by air pollution in the Czech Republic. This paper compares results for soil properties investigated in non-limed forest stands during the years 1994 to 2007. Differences between the 2007 and 2000/01 surveys concerning Al, Ca and Mg content and pH in particular soil horizons are depicted using kriged maps. This means of interpreting laboratory analysis results allowed us to highlight the most endangered NFR areas from an acidification standpoint. Evaluation of results for Al, Ca and Mg content, their available forms and pH values in the Hrub&yacute; Jesen&iacute;k NFR in the 1994&ndash;2007 period revealed the presence of an ongoing acidification process. The southern (Praděd region) and northwestern areas (Kr&aacute;lick&yacute; Sněžn&iacute;k region) may be singled out as the most depleted.

Nonsymbiotic nitrogen fixation in the topsoil of some forest stands in central Sweden

1985 ◽  
Vol 15 (4) ◽  
pp. 715-722 ◽  
Author(s):  
Hans-Örjan Nohrstedt
Keyword(s):  
Soil Properties ◽  
Soil Acidity ◽  
Conversion Factor ◽  
Nitrogenase Activity ◽  
Growing Season ◽  
Parent Material ◽  
Dinitrogen Fixation ◽  
Strong Positive Correlation ◽  
Forest Stands ◽  
Site Productivity

Studies on nonsymbiotic dinitrogen fixation (C2H2) in soil were conducted in 20 different forest stands in central Sweden. The stands were between 40 and 120 years old and included both coniferous and deciduous types. The relationships between nitrogenase activity and site productivity, stand composition, and soil properties were examined. Based on three samplings during the growing season, a considerable difference in activity was found to occur between the stands. The highest yearly mean activity for a stand was 200 times the lowest value. The activity was positively and significantly correlated to site productivity. The effect of stand composition on the activity in the forest floor was studied on five sites. The activity was similar under spruce (Piceaabies (L.) Karst.) and pine (Pinussylvestris L.), higher under spruce than beech (Fagussylvatica L.), and much higher under birch (Betulapendula Roth) than spruce when compared two by two on identical parent material. The activity under birch was mainly concentrated in the birch leaf litter. Evaluating the influence of soil properties by regression analysis revealed a strong positive correlation between activity and pH. The soil acidity alone explained 85% of the variation in yearly mean activity among the 15 coniferous stands. The conversion factor between C2H2 reduction and 15N2 fixation was determined for five soils and ranged from 1.6 to 5.6. The N2 fixation down to a depth of 6 cm during the growing season was estimated to 0.4–1.4 kg ha−1 in these soils.

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