Changes In Solum Chemistry Following Clearcutting of Northern Hardwood Stands

Snyder, Kent E.; Harter, Robert D.

doi:10.2136/sssaj1985.03615995004900010045x

Cited by 24 publications

(16 citation statements)

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“…They examined stands representing a 25-yr chronosequence following cutting and found no changes in soil organic matter. Using data from SREF, NREF, and every 5 yr on CSH to represent a 70-yr chronosequence following clear-cutting, we found a similar response to the northern hardwood sites of Snyder and Harter (1984). Soil C concentrations initially increase but then decrease with time.…”

Section: Harvest Treatmentsmentioning

confidence: 60%

“…In northern hardwood stands ranging from 3 to 93 yr, Snyder and Harter (1984) found soil C increased from 3 to 10 yr following disturbance. In their systems, soil C then decreased between 10-, 30-, and 93-yr-old stands.…”

Section: Harvest Treatmentsmentioning

confidence: 91%

“…Powers (1989) suggested that forest productivity is directly related to soil organic matter content. Soil organic matter content can change due to normal site processes with time such as succession and biomass accumulation (Snyder and Harter, 1984). Changes can also occur through anthropogenic manipulations such as species conversion (Richter et al, 1994;Alban, 1982), or harvesting (MuellerHarvey et al, 1985;Mroz et al, 1985;Kraske and Fernandez, 1993).…”

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confidence: 99%

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Forest Management Effects on Surface Soil Carbon and Nitrogen

Knoepp

Swank

1997

Soil Science Soc of Amer J

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Changes in surface soil C and N can resuh from forest management practices and may provide an index of impacts on long-term site productivity. Soil C and N were measured over time for five watersheds in the southern Appalachians: two aggrading hardwood forests, one south-and one north-facing, undisturbed since the 1920s; a white pine (Pinus strobus L.) plantation planted in 1956; and two regenerating hardwood forests, a whole-tree harvest in 1980, and a commercial sawlog harvest in 1977. Soils on harvested watersheds were sampled before and for =15 yr after harvest. Surface soil C concentration on the undisturbed watersheds varied significantly among sample years. Concentrations fluctuated on the south-facing and decreased on the north-facing watershed. The pattern for total N was similar. Total N decreased significantly on the north-facing but was stable on the southfacing watershed. In the white pine plantation, C increased while N concentrations decreased during the 20-yr period. Soil C and N concentrations generally declined the first year following whole-tree harvest. Fourteen years after cutting, C remained stable, while N was greater compared with reference watershed soils. The commercial sawlog harvest resulted in large increases in surface soil C and N concentrations immediately after cutting. Carbon levels remained elevated 17 yr following cutting. Our data suggest that the forest management practices examined do not result in long-term decreases in soil C and N. However, the high interannual variation on all watersheds suggests that care must be taken in selecting control sites to determine long-term treatment impacts.

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Section: Harvest Treatmentsmentioning

confidence: 60%

Section: Harvest Treatmentsmentioning

confidence: 91%

mentioning

confidence: 99%

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Forest Management Effects on Surface Soil Carbon and Nitrogen

Knoepp

Swank

1997

Soil Science Soc of Amer J

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“…Results show that it tends to increase the rate of soil organic matter mineralisation [14] and often increases the nitrification rate [48] and, consequently, the leaching of nutrient cations out of the rooting zone [45]. Whole-tree harvesting tends to make soil reserves decrease more than stem-only harvesting, but it widely varies according to the situation.…”

Section: A Comparison Of the Present Study To Previously Published Rementioning

confidence: 99%

Effets de la coupe à blanc d’un peuplement de Douglas (Pseudotsuga menziesii (Mirb.) Franco) sur la fertilité chimique du sol

et al. 2008

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-• Stand harvesting and regeneration were usually considered to be a critical phase for the sustainability of forest soils. The present study concerned the effects on soil chemical fertility of the clear-cutting of a highly productive Douglas-fir stand aged 67 years that was clear-cut with no disturbance.• Results showed that soil changes were rapid in the three-year period following the cutting. The forest floor mass considerably decreased and the mineral soil showed a limited but real acidification. Soil losses represented 4% of the available nutrients over a depth of 60 cm for N, 22% for K, 25% for Ca and 32% for Mg. Only P increased by 11%. Due to the spatial variability of forest soils, and despite regular re-sampling, confidence intervals were large and difficult to reduce.• The reversibility of the effects of the clear-cutting and its consequences on soil functions depend on the element: it should not be a problem for C, N and K, which would recover when the biological cycle is re-established once again in the young stand. Phosphorus is not at issue since it changes form in the soil. The depletion of Ca, and to a lesser extent of Mg, is of some concern as a result of limited soil reserves, the limited flux of cations from the mineral changes in the soil, the relatively large part of Ca and Mg in the forest floor, and the negative input-output budgets for those elements.• The duration of the impact of the clear-cutting on soil requires medium-term observations because it cannot be deduced from the current knowledge of this ecosystem.clear-cutting / Douglas-fir / soil fertility / acidification Résumé -Effets de la coupe à blanc d'un peuplement de Douglas (Pseudotsuga menziesii (Mirb.) Franco) sur la fertilité chimique du sol.• La récolte des peuplements est une phase critique pour la durabilité des sols forestiers. Cette étude concerne les effets de la coupe à blanc d'un peuplement de Douglas de 67 ans, réalisée sans perturbation, sur la fertilité organo-minérale du sol.• Les résultats montrent que l'évolution du sol est rapide dans la période de trois ans après la coupe. La couche organique décroît fortement et le sol minéral se désature et s'acidifie. Les pertes représentent 4 % des éléments disponibles du sol sur 60 cm pour N, 22 % pour K, 25 % pour Ca et 32 % pour Mg. Seul P augmente de 11 %. Cependant, la variabilité spatiale des sols forestiers et la technique de l'observatoire, par échantillonnages successifs, conduisent à des intervalles de confiance larges autour de ces valeurs, intervalles qui s'avèrent difficile à réduire.• La réversibilité des modifications du sol dépend des éléments : elle ne devrait pas poser de problème pour C, N et K. P n'est pas en cause puisqu'il change de forme dans le sol mais aucune perte n'est notée. Les pertes de Ca voire de Mg sont les plus préoccupantes en raison des faibles réserves du sol, du flux limité de cations issu de l'altération des minéraux du sol, de la part relativement élevée des ces éléments dans les couches organiques, et de leur bilan entrée...

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“…The biggest changes in the soil of a regular stand are linked with its regeneration (Snyder, Harter 1985;Fisher, Binkley 2000). Leaf litter decomposition is the basic chain in the cycling of matter and energy in a forest (Berg 2000;Couteaux et al 1995).…”

Section: Discussionmentioning

confidence: 99%

Different technologies of floodplain forest regeneration from the aspect of soil changes

Pernar¹,

Klimo²,

Matić³

et al. 2009

J. For. Sci.

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ABSTRACT:Like in other types of forests the greatest changes in the soil of floodplain forest stands occur during their regeneration. These changes are manifested as changes in the content and dynamics of organic matter in the soil. Research was conducted in oak and ash floodplain forests in the eastern part of Croatia and in southern Moravia in the Czech Republic. The results showed that the type and extent of these changes depended, in addition to environmental factors, also on the technology of forest regeneration. The natural regeneration of oak in floodplain forests of Spačva (eastern Croatia) protects soil from dramatic changes in soil by successive regeneration felling and that it retains the plant cover permanently. The weight of organic matter on the soil surface is increased after regeneration till the period when the effect of thinning becomes evident (about 70 years). In the surface mineral layer of soil the pH value increases after shelterwood felling. Stand regeneration with clear-cutting results in a rapid change in the conditions of surface humus accumulation and decomposition. The process of organic residue accumulation is interrupted in the clearings. In the preparation of soil/site by ploughing, the concentrations of nitrogen and carbon slightly decrease. The management impact depends on the method of site preparation for the establishment of a new stand. The selection of a method of the floodplain forest regeneration (particularly of oak) is markedly dependent on actual ecological conditions and on ecological and historical experience of the given region. Matić (1996, 2003a,b), Oršanić and Drvodelić (2007) consider natural regeneration of oak to be a method which preserves the uninterrupted development of forest sites and biocoenoses being realized during 3 stages (preparatory felling, seed felling and final felling). In addition to this, Houšková et al. (2007) drew a conclusion: "Natural regeneration of pedunculate oak cannot be fully relied on in the Czech Republic due to the long-term absence of rich mast years and it is, therefore, necessary to continue the planning of artificial regeneration. "Farm forestry (alternate forest and farm crops) as one of the methods of clear-felling regeneration shows potential negative impacts on the soil environment (Libus et al. 2007), particularly decreasing porosity and water retention capacity at a depth of 25 to 35 cm. Soil/site preparation by ploughing shows also negative impacts due to decreased accumulation of carbon.From the aspect of the ecosystem approach in the floodplain forest management, attention is also paid (in addition to maintaining the high production level of the ecosystem tree layer) to other components, such as preserving and increasing biodiversity at the level of communities and species, nature and water resources protection and the function of forests in the landscape and socioeconomic consequences.Problems of these functions were also dealt with by the last ministerial conference held in Warsaw at the beginning of 2007. Resoluti...

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Changes In Solum Chemistry Following Clearcutting of Northern Hardwood Stands

Cited by 24 publications

References 0 publications

Forest Management Effects on Surface Soil Carbon and Nitrogen

Forest Management Effects on Surface Soil Carbon and Nitrogen

Effets de la coupe à blanc d’un peuplement de Douglas (Pseudotsuga menziesii (Mirb.) Franco) sur la fertilité chimique du sol

Different technologies of floodplain forest regeneration from the aspect of soil changes

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