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European beech leads to more bioactive humus forms but stronger mineral soil acidification as Norway spruce and Scots pine – Results of a repeated site assessment after 63 and 82 years of forest conversion in Central Germany / Florian Achilles in Forest ecology and management, vol 483 ([01/03/2021])
Titre : European beech leads to more bioactive humus forms but stronger mineral soil acidification as Norway spruce and Scots pine – Results of a repeated site assessment after 63 and 82 years of forest conversion in Central Germany Type de document : Article/Communication Auteurs : Florian Achilles, Auteur ; Alexander Tischer, Auteur ; Markus Bernhardt-Römermann, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : n° 118769 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne
[Termes IGN] analyse diachronique
[Termes IGN] biomasse forestière
[Termes IGN] composition d'un peuplement forestier
[Termes IGN] composition des sols
[Termes IGN] conversion forestière
[Termes IGN] Fagus (genre)
[Termes IGN] gestion forestière
[Termes IGN] Picea abies
[Termes IGN] Pinus sylvestris
[Termes IGN] sol acide
[Termes IGN] sol forestier
[Vedettes matières IGN] SylvicultureRésumé : (auteur) To reduce the effects of extended coniferous monoculture plantations on forest floor and topsoil processes, like amplified acidification or nutrient immobilization in organic layers, small interspersed groups of European beech were planted at the beginning of the 20th century amid large coniferous stands (CS) in Central Germany. Today, these so-called “Green Eyes” (GE) are 82-year old. In our study we focused on two different timelines to investigate the effects of forest conversion on vegetation composition, forest floor and mineral soil properties, encompassing a long-term (>80 year) comparison from tree planting in the 1930s to 2018 and a shorter timeframe nearly spanning 20 years (1999–2018). Since long-term forest conversion experiments (>60 years) across sites sharing a common forest land-use history are scarce, our study allows to contribute to a better evaluation of the long-term effects on changes in soil properties. We linked standard methods assessing soil pH, organic C and total N concentrations as well as stocks as indicators of soil quality changes in forest floor and mineral soil (down to 40 cm depth) to patterns in ground vegetation dynamics (most GE were characterized only by a few herbaceous species). Our results exhibited an effect of forest conversion on the activation in forest floor turnover resulting in increased turnover rates in the GE (GE contain only half of the forest floor OM of CS), hence forming more bioactive humus forms (mull, moder) and a noticeable higher forest floor pH (+0.6 units) compared to CS. The OC translocation from the forest floor into the topsoil is higher under GE (+0.7% OC content), probably building up a stable SOC pool hence contributing to C sequestration. The positive effects of European beech on forest floor quality are related to a stronger acidification of the subsoil during the past 20 years (-0.5 pH units). The base pump effect (uptake of Ca2+, Mg2+, K+ and assimilation into tree biomass in exchange release of H+) in GE led to more acidic conditions (- 0.2 pH units) in the deeper mineral soil compared to CS. This bio-acidification may serve as one reason for subsoil acidification, as observed in our study, pointing out that mineral soil acidification is still an important issue in central European forests. Future restoration of soil base cation pools will still depend on the rate of bio-acidification, on the amount of acidifying air pollutant (and base cation) depositions and on forest management practices (e.g. intensity of biomass removal, soil regeneration-oriented liming). Numéro de notice : A2021-229 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2020.118769 Date de publication en ligne : 18/11/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118769 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97216
in Forest ecology and management > vol 483 [01/03/2021] . - n° 118769[article]
Titre : Faut-il des relevés de flore exhaustifs pour caractériser et cartographier l'acidité et les propriétés nutritionnelles des sols ? Type de document : Article/Communication Auteurs : Paulina E. Pinto, Auteur ; Jean-Luc Dupouey, Auteur ; Jean-Claude Gégout, Auteur ; Jean-Christophe Hervé (1961-2017) Année de publication : 2019 Projets : ARBRE / AgroParisTech (2007 -) Article en page(s) : pp 71 - 84 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] caractérisation
[Termes IGN] carte pédologique
[Termes IGN] composition floristique
[Termes IGN] pédologie
[Termes IGN] placette d'échantillonnage
[Termes IGN] sol acide
[Termes IGN] teneur en azote
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Les caractéristiques nutritionnelles des sols peuvent être évaluées par des approches de bioindication souvent basées sur des inventaires floristiques complets des espèces présentes dans une placette. La durée de ces inventaires floristiques a limité l’utilisation, au-delà des catalogues de station, de la bioindication dans la gestion des forêts et d'autres milieux naturels. Dans le cadre de l’estimation et de la cartographie des propriétés des sols, nous avons cherché à déterminer s’il était possible de réduire le temps d’acquisition des données flore sur le terrain en vue d’estimer l’acidité, la disponibilité en éléments minéraux et en azote du sol par bioindication. Un dispositif de 470 relevés chronométrés, répartis à échelle nationale et dans trois forêts du nord-est de la France, a permis de mettre en évidence que 80 % de la précision maximale de prédiction est obtenue après 4-5 minutes d’inventaire floristique (6-12 espèces inventoriées) pour les trois variables étudiées. Numéro de notice : A2019-637 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : FORET Nature : Article nature-HAL : ArtSansCL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95560
in Rendez-vous techniques > n° 61-62 (hiver - printemps 2019) . - pp 71 - 84[article]Exemplaires(1)
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Faut-il des relevés de flore exhaustifs ... - pdf éditeurAdobe Acrobat PDF
Titre : Optimizing the bioindication of forest soil acidity, nitrogen and mineral nutrition using plant species Type de document : Article/Communication Auteurs : Paulina E. Pinto, Auteur ; Jean-Luc Dupouey, Auteur ; Jean-Christophe Hervé (1961-2017) Année de publication : 2016 Projets : ARBRE / AgroParisTech (2007 -) Article en page(s) : pp 359 - 367 Note générale : bibliographie
This study was supported by the French National Institute for Agricultural Research (Forest Grassland and Freshwater Ecology Department, EFPA) through the ONF-INRA Interface Grant, “Station, distribution, croissance et choix des essences dans un contexte environnemental changeant”, and by the French National Research Agency (ANR) through the Laboratory of Excellence ARBRE (ANR-12-LABXARBRE-01)Langues : Anglais (eng) Descripteur : [Termes IGN] base de données forestières
[Termes IGN] fertilité
[Termes IGN] humidité du sol
[Termes IGN] indicateur biologique
[Termes IGN] inventaire de la végétation
[Termes IGN] placette d'échantillonnage
[Termes IGN] qualité du sol
[Termes IGN] sol acide
[Termes IGN] teneur en azote
[Vedettes matières IGN] Inventaire forestierRésumé : (auteur) Soil moisture and nutritional characteristics are frequently assessed using plant species and community bioindication, e.g., the Ellenberg system of species indicator values. This method, based on complete inventories of plant species present in plots, is time-consuming, which could prevent its general use for forest or other natural land management. Our aim was to determine the impact of a reduction in the time spent to carry out a floristic inventory on the quality of soil characteristic assessment using plant bioindication. We compared the measurements of soil pH-H2O (pH), organic carbon to total nitrogen ratio (C:N) and base saturation (BS) in the 0–5 cm soil layer of 470 plots with the same variables estimated from floristic inventories of increasing duration, using plant indicator values (IV) from the EcoPlant database. The performance of predictions was evaluated by the square of the linear correlation coefficient between measured and predicted values (R2) and the root mean square error (RMSE) of predictions.
The number rather than the percentage of total plot species used for the estimations was determinant for the prediction of soil pH quality. Performance of bioindication of pH, BS and C:N reached the maximum R2 using the first 20–25 species recorded per plot, corresponding to a 14-min-long floristic inventory in comparison to a mean of 28 min spent to carry out a complete floristic inventory. A precision of prediction of 80% of the maximal precision was obtained after 4–5 min (6–12 inventoried species) for the three studied variables. These results are independent of the nutritional capability of the soils and were similar at the national and local scales. In order to estimate soil nutritional resources by plant bioindication, it is feasible to significantly reduce the time spent on floristic inventories and, thus, their cost. This is especially useful when the goal is to map the soil quality for decision-making in forest management.Numéro de notice : A2016--084 Affiliation des auteurs : LIF+Ext (2012-2019) Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.ecolind.2016.05.047 Date de publication en ligne : 25/07/2016 En ligne : http://doi.org/10.1016/j.ecolind.2016.05.047 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84562
in Ecological indicators > vol 71 (December 2016) . - pp 359 - 367[article]
Titre : Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe Type de document : Article/Communication Auteurs : Ulrike Talkne, Auteur ; Karl Josef Meiwes, Auteur ; Nenad Potočić, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 919 - 928 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] azote
[Termes IGN] croissance des arbres
[Termes IGN] défoliation
[Termes IGN] Fagus (genre)
[Termes IGN] nutriment végétal
[Termes IGN] phosphore
[Termes IGN] phytobiologie
[Termes IGN] placette d'échantillonnage
[Termes IGN] sol acide
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Key message : Foliar phosphorus concentrations have decreased in Europe during the last 20 years. High atmospheric nitrogen deposition and climate change might be responsible for this trend. Continued decrease in foliar P concentrations might lead to reduced growth and vitality of beech forests in Europe.
Context : Increased forest soil acidification, atmospheric nitrogen deposition, and climate change have been shown to affect phosphorus nutrition of forest trees. Low foliar phosphorus levels and high nitrogen/phosphorus ratios have been observed in different European countries and have been related to reduced growth in forests.
Aims : We test the hypothesis that phosphorus concentrations of European beech (F. sylvatica L.) foliage are decreasing at the European scale.
Methods : Foliar phosphorus concentrations in beech were monitored on the basis of the “International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests.” Here, data from 12 European countries, comprising 79 plots and a 20-year sampling period (1991–2010), were evaluated.
Results : Foliar phosphorus concentrations ranged from 0.81 to 1.66 mg g−1 dw (plot median of the 20-year sampling period). On 22 % of the plots, phosphorus concentrations were in the deficiency range of beech (Mellert and Göttlein 2012). On 62 % of the plots, the nitrogen/phosphorus ratio was above 18.9, which is considered to be disharmonious for beech. In addition, foliar phosphorus concentrations were significantly decreasing by, on average, 13 % from 1.31 to 1.14 mg g−1 in Europe (p Conclusion : Our results show that phosphorus nutrition of beech is impaired in Europe. Possible drivers of this development might be high atmospheric nitrogen deposition and climate change. Continued decrease in foliar phosphorus concentrations, eventually attaining phosphorus deficiency levels, might lead to reduced growth and vitality of beech forests in Europe.Numéro de notice : A2015-719 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-015-0459-8 Date de publication en ligne : 01/10/2015 En ligne : https://doi.org/10.1007/s13595-015-0459-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78368
in Annals of Forest Science > vol 72 n° 7 (October 2015) . - pp 919 - 928[article]
Titre : Use of high-resolution satellite imagery for investigating acid mine drainage from artisanal coal mining in North-Eastern India Type de document : Article/Communication Auteurs : B. Blahwar, Auteur ; S. Srivastav, Auteur ; J. Smeth, Auteur Année de publication : 2012 Article en page(s) : pp 231 - 247 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] fer
[Termes IGN] image à très haute résolution
[Termes IGN] image Cartosat-1
[Termes IGN] image IRS-LISS
[Termes IGN] image IRS-P6
[Termes IGN] image panchromatique
[Termes IGN] image Quickbird
[Termes IGN] Inde
[Termes IGN] mine de charbon
[Termes IGN] pollution des eaux
[Termes IGN] ruissellement
[Termes IGN] sol acideRésumé : (Auteur) Acid mine drainage (AMD) is one of the major environmental problems in coalmining districts. The present study explores the potential of high-resolution satellite (HRS) imagery, combined with field-based geochemical sampling, for investigating the AMD-related issues arising from artisanal coal mining activity in a part of North-Eastern India. The HRS imagery available from Indian remote sensing satellites (CARTOSAT-1 and RESOURCESAT-1) and QuickBird are used for this purpose. The study demonstrates that (1) the artisanal ‘rat-hole' type coal mines prevalent in the study area can be mapped to a fair extent through merged CARTOSAT-1 PAN and RESOURCESAT-1 LISS-IV imagery; (2) coal mining-induced enhanced dissolution of pyrites appears to be the main mechanism for the occurrence of AMD exacerbating the problem of acid rock drainage (ARD); and (3) HRS imagery can be used to detect iron precipitates on streambeds indicating the presence of AMD. Numéro de notice : A2012-248 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2011.628761 Date de publication en ligne : 05/12/2011 En ligne : https://doi.org/10.1080/10106049.2011.628761 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31694
in Geocarto international > vol 27 n° 3 (June 2012) . - pp 231 - 247[article]Exemplaires(1)
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