31,456 research outputs found

    Evelyn Jansen

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    Evelyn Jansen (1961) is als beeldend kunstenaar geïnspireerd door de filosofie van Martin Heidegge

    Evelyn Jansen

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    Evelyn Jansen (1961) is als beeldend kunstenaar geïnspireerd door de filosofie van Martin Heidegge

    Johann Georg Hamann, Hauptschriften erklärt, t. V (Mysterienschriften) par Evert Jansen Schoohoven et Martin Seils. Gütersloh, éd. G. Mohn, 1962

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    Stabenbordt Pierre. Johann Georg Hamann, Hauptschriften erklärt, t. V (Mysterienschriften) par Evert Jansen Schoohoven et Martin Seils. Gütersloh, éd. G. Mohn, 1962. In: Revue d'histoire et de philosophie religieuses, 43e année n°3,1963. p. 285

    Johann Georg Hamann, Hauptschriften erklärt, t. V (Mysterienschriften) par Evert Jansen Schoohoven et Martin Seils. Gütersloh, éd. G. Mohn, 1962

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    Stabenbordt Pierre. Johann Georg Hamann, Hauptschriften erklärt, t. V (Mysterienschriften) par Evert Jansen Schoohoven et Martin Seils. Gütersloh, éd. G. Mohn, 1962. In: Revue d'histoire et de philosophie religieuses, 43e année n°3,1963. p. 285

    Grandeur et décadence d'un lignage provençal (Xe-XIVe siècles) : Aurell (Martin), Une famille de la noblesse provençale au Moyen Âge : les Porcelet, Avignon, Aubanel, 1986

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    Jansen Philippe. Grandeur et décadence d'un lignage provençal (Xe-XIVe siècles) : Aurell (Martin), Une famille de la noblesse provençale au Moyen Âge : les Porcelet, Avignon, Aubanel, 1986. In: Annales du Midi : revue archéologique, historique et philologique de la France méridionale, Tome 100, N°181, 1988. Les années d'apprentissage de Jaufre Rudel. pp. 87-89

    FIGURE 8 in Description of a new species of Xenopholis (Serpentes: Colubridae) from the Cerrado of Bolivia, with comments on Xenopholis scalaris in Bolivia

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    FIGURE 8. Juvenile of Xenopholis scalaris (SMF 88380), Arútam, Ecuador. Photo: G. Köhler.Published as part of Jansen, Martin, Álvarez, Lucindo Gonzales & Köhler, Gunther, 2009, Description of a new species of Xenopholis (Serpentes: Colubridae) from the Cerrado of Bolivia, with comments on Xenopholis scalaris in Bolivia, pp. 31-45 in Zootaxa 2222 on page 39, DOI: 10.5281/zenodo.19010

    FIGURE 2 in Description of a new species of Xenopholis (Serpentes: Colubridae) from the Cerrado of Bolivia, with comments on Xenopholis scalaris in Bolivia

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    FIGURE 2. Holotype of Xenopholis werdingorum (MNKR 4700). Photo: A. Schulze.Published as part of Jansen, Martin, Álvarez, Lucindo Gonzales & Köhler, Gunther, 2009, Description of a new species of Xenopholis (Serpentes: Colubridae) from the Cerrado of Bolivia, with comments on Xenopholis scalaris in Bolivia, pp. 31-45 in Zootaxa 2222 on page 34, DOI: 10.5281/zenodo.19010

    Spatial distribution of tree and grassland fine roots in an alley cropping system

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    Alley cropping systems are known as more sustainable land use alternatives compared to monoculture cropland. In addition to the improvement of above-ground structures and creation of biotopes relevant to nature conservation, the improvement of resource development through various root systems plays a major role. We studied the interaction of the root systems in an alley cropping system combining permanent grassland and willows and at a reference grassland site. The system was established 12 years prior to our study on a site with a shallow groundwater table at 130 cm depth. We measured carbon stocks in the topsoil and determined the share of root-bound carbon relative to the total carbon pool and extracted soil cores up to a depth of 150 cm along a distance gradient to the trees and at a reference grassland site with no tree influence. The maximal rooting depth of the grassland roots increased with increasing distance to the tree lines and total root biomass was higher than under the grassland reference up to a distance of 2.5 m from the tree line. Tree roots extended up to a distance of 5.5 m from the trees and we could distinguish zones of tree root dominance very close to the trees, zones of grassland root dominance at distances ≥ 8.5 m and an interaction zone in between those two extremes. We conclude that alley cropping increases belowground biomass as compared to grassland and has therefore a higher potential to store carbon in the subsoil.Open-Access-Publikationsfonds 202
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