Dr. Nathalie Soethe
Profil
Forschungsthemen1
Blattbehandlungsexperiment zur Wirksamkeit des Organismus Agrobasidium pullulans gegen Bakterienbrand bei Süßkirschen
Quelle ↗Förderer: Wirtschaftsunternehmen / gewerbliche Wirtschaft Zeitraum: 03/2022 - 07/2022 Projektleitung: Dr. Nathalie Soethe
Mögliche Industrie-Partner10
Stand: 26.4.2026, 19:48:44 (Top-K=20, Min-Cosine=0.4)
- 9 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Validating C. Elegans Healthspan Model for Better Understanding Factors Causing Health and Disease, to Develop Evidence Based Prevention, Diagnostic, Therapeutic and Other StrategiesP46.9%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 6 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 5 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 6 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 6 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 7 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 6 Treffer57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in EuropeP57.2%
- Climate-smart rewilding: ecological restoration for climate change mitigation, adaptation and biodiversity support in Europe
- 4 Treffer56.8%
- Gamification for Climate ActionP56.8%
- Gamification for Climate Action
- 11 Treffer56.7%
- Langfristige Entwicklung der Bodenfruchtbarkeit sandiger Standorte unter dem Einfluss von ackerbaulichen MaßnahmenP56.7%
- Langfristige Entwicklung der Bodenfruchtbarkeit sandiger Standorte unter dem Einfluss von ackerbaulichen Maßnahmen
Rothamsted Research
PT11 Treffer56.7%- Langfristige Entwicklung der Bodenfruchtbarkeit sandiger Standorte unter dem Einfluss von ackerbaulichen MaßnahmenP56.7%
- Langfristige Entwicklung der Bodenfruchtbarkeit sandiger Standorte unter dem Einfluss von ackerbaulichen Maßnahmen
Publikationen23
Top 25 nach Zitationen — Quelle: OpenAlex (BAAI/bge-m3 embedded für Matching).
Global Change Biology · 226 Zitationen · DOI
Carbon storage and sequestration in tropical mountain forests and their dependence on elevation and temperature are not well understood. In an altitudinal transect study in the South Ecuadorian Andes, we tested the hypotheses that (i) aboveground net primary production (ANPP) decreases continuously with elevation due to decreasing temperatures, whereas (ii) belowground productivity (BNPP) remains constant or even increases with elevation due to a shift from light to nutrient limitation of tree growth. In five tropical mountain forests between 1050 and 3060 m a.s.l., we investigated all major above- and belowground biomass and productivity components, and the stocks of soil organic carbon (SOC). Leaf biomass, stemwood mass and total aboveground biomass (AGB) decreased by 50% to 70%, ANPP by about 70% between 1050 and 3060 m, while stem wood production decreased 20-fold. Coarse and large root biomass increased slightly, fine root biomass fourfold, while fine root production (minirhizotron study) roughly doubled between 1050 and 3060 m. The total tree biomass (above- and belowground) decreased from about 320 to 175 Mg dry mass ha−1, total NPP from ca. 13.0 to 8.2 Mg ha−1 yr−1. The belowground/aboveground ratio of biomass and productivity increased with elevation indicating a shift from light to nutrient limitation of tree growth. We propose that, with increasing elevation, an increasing nitrogen limitation combined with decreasing temperatures causes a large reduction in stand leaf area resulting in a substantial reduction of canopy carbon gain toward the alpine tree line. We conclude that the marked decrease in tree height, AGB and ANPP with elevation in these mountain forests is caused by both a belowground shift of C allocation and a reduction in C source strength, while a temperature-induced reduction in C sink strength (lowered meristematic activity) seems to be of secondary importance.
Journal of Tropical Ecology · 119 Zitationen · DOI
Abstract We measured macronutrient concentrations in soils and leaves of trees, shrubs and herbs at 1900, 2400 and 3000 m in an Ecuadorian tropical montane forest. Foliar N, P, S and K concentrations in trees were highest at 1900 m (21.7, 2.2, 1.9 and 10.0 mg g −1 ). At 2400 and 3000 m, foliar concentrations of N, P, S and K were similar to nutrient concentrations in tropical trees with apparent nutrient deficiency, as presented in literature. Unlike foliar nutrient concentrations, the amounts of plant-available nutrients in mineral soil were not affected by altitude or increased significantly with increasing altitude. High C:N ratios (25:1 at 2400 m and 34:1 at 3000 m) and C:P ratios (605:1 at 2400 m and 620:1 at 3000 m) in the soil organic layer suggested slow mineralization of plant litter and thus, a low availability of N and P at high altitudes. Foliar N:P ratios were significantly higher at 2400 m (11.3:1) than at 3000 m (8.3:1), indicating that at high altitudes, N supply was more critical than P supply. In conclusion, the access of plants to several nutrients, most likely N, P, S and K, decreased markedly with increasing altitude in this tropical montane forest.
Journal of Environmental Planning and Management · 109 Zitationen · DOI
The public justification for nature conservation currently rests on two pillars: hedonic (instrumental) values, and moral values. Yet, these representations appear to do little motivational work in practice; biodiversity continues to decline, and biodiversity policies face a wide implementation gap. In seven EU countries, we studied why people act for nature beyond professional obligations. We explore the motivations of 105 committed actors for nature in detail using life-history interviews, and trace these back to their childhood. Results show that the key concept for understanding committed action for nature is meaningfulness. People act for nature because nature is meaningful to them, connected to a life that makes sense and a difference in the world. These eudemonic values (expressing the meaningful life) constitute a crucial third pillar in the justification of nature conservation. Important policy implications are explored, e.g. with respect to public discourse and the encounter with nature in childhood.
Environmental Impact Assessment Review · 98 Zitationen · DOI
Ecological studies · 86 Zitationen · DOI
Plant and Soil · 84 Zitationen · DOI
Journal of Environmental Planning and Management · 69 Zitationen · DOI
Biodiversity loss is a widely debated world problem, with huge economic, social, and environmentally negative consequences. Despite the relevance of this issue, the psychological determinants of committed action towards nature and biodiversity have rarely been investigated. This study aims at identifying a comprehensive social-psychological profile of activists committed to biodiversity protection and at understanding what determinants best predict their activism. A questionnaire investigating relevant social-psychological constructs identified in the literature on environmental activism was administered to 183 outstanding leaders (vs. non-leaders) in biodiversity protection across seven EU countries. Leaders (vs. non-leaders) in biodiversity protection showed, among other constructs, higher scores on environmental values, attitudes, identity, perceived control, a feeling of union and spirituality with nature, and willingness to sacrifice for their cause. Results are discussed within the theoretical framework of a motivation model of committed action for nature and biodiversity protection. Applications of the results are also proposed.
Environment and Behavior · 65 Zitationen · DOI
Environmental activism, defined as a range of difficult pro-environmental behaviors, is analyzed within the conceptual framework of Significance Quest Theory (SQT). In Study 1, 40 interviews were carried out on two groups of people in the European Union: Committed Actors for Nature (CANs, n = 25) versus Committed Actors for Society (CASs, n = 15). Results demonstrated that Significance Quest (SQ) motivates each group to be strongly committed to their chosen action and the main difference between them being in their ideology (pro-social vs. pro-environmental). In Study 2 ( N = 131), the relationship between SQ and intention to enact difficult pro-environmental behaviors was assessed. Results suggested that the higher the SQ, the higher the tendency to enact difficult pro-environmental behaviors, but not average or easy ones. Moreover, the higher the pro-environmental ideology, the stronger the indirect effect of SQ on difficult behavior through willingness to sacrifice.
Environmental Science & Policy · 63 Zitationen · DOI
Plant and Soil · 55 Zitationen · DOI
Ecological studies · 45 Zitationen · DOI
Environmental Conservation · 44 Zitationen · DOI
SUMMARY Despite ongoing efforts to motivate politicians and publics in Europe regarding nature conservation, biodiversity continues to decline. Monetary valuation of ecosystem services appears to be insufficient to motivate people, suggesting that non-monetary values have a crucial role to play. There is insufficient information about the motivations of actors who have been instrumental in successful conservation projects. We investigated the motivations underlying these biodiversity actors using the ranking of cards and compared the results with the rankings of motivations of a second group of actors with more socially related interests. For both groups of actors, their action relating to biodiversity was supported in general by two groups of motivations related to living a meaningful life and moral values. The non-biodiversity actors also noted that their action relating to biodiversity rested more on beauty, place attachment and intrinsic values in comparison with their main non-biodiversity interests. Our results have implications for environmental policy and biodiversity conservation in that the current tendency of focusing on the economic valuation of biodiversity fails to address the motivations of successful actors, thereby failing to motivate nature conservation on an individual level.
44 Zitationen
Abstract This study presents an integrated approach for the recovery of P from the wastewater path. Since natural P sources are limited, recycling processes are making an increasingly important contribution to meeting the nutritional requirements of plant production. The groundwork for developing a new fertilizer from upgraded sewage sludge includes an evaluation of nutrients and heavy metal contents. Struvite (NH 4 MgPO 4 • 6 H 2 O) derived from sewage sludge had a total P content of 6.1% with 3.5% being water-soluble. Plant availability was tested in pot experiments with wheat and maize. P uptake rates were 66.7% and 85.9%, respectively. In terms of heavy metal contents, struvite showed contaminant levels at least three times below the limiting values of the German Sewage Sludge Ordinance. Stricter rules of the German Federal Soil Protection Act are also fulfilled if the loading of heavy metals is considered during periodical fertilization. This implies that P recovery as struvite may be one way of declaring a new type of fertilizer.
Journal of Tropical Ecology · 39 Zitationen · DOI
Carbon and nutrient stocks in below-ground biomass have rarely been investigated in tropical montane forests. In the present study, the amounts of carbon, nitrogen, phosphorus, sulphur, potassium, calcium and magnesium in root biomass were determined by soil coring and nutrient analysis in forests at three altitudes (1900, 2400 and 3000 m) in the Ecuadorian Andes. Root biomass increased markedly from 2.8 kg m −2 at 1900 m and 4.0 kg m −2 at 2400 to 6.8 kg m −2 at 3000 m. The contribution of coarse roots (> 2 mm in diameter) to total root biomass increased from about 70% at 1900 m to about 80% at higher altitudes. In fine roots (≤ 2 mm in diameter), concentrations of nutrients except calcium markedly decreased with altitude. Therefore, the nutrient stocks in fine roots were similar at 1900 m and 3000 m for nitrogen and sulphur, and were even lower at higher altitudes for phosphorus, potassium and magnesium. In coarse roots of Graffenrieda emarginata concentrations of nutrients were substantially lower than in fine roots, and were little affected by altitude. The data suggest that the importance of coarse roots for long-term carbon and nutrient accumulation in total plant biomass increases with increasing altitude.
Ecological studies · 30 Zitationen · DOI
Plant Ecology & Diversity · 28 Zitationen · DOI
Background: Data on below-ground production of tropical montane forests along elevation gradients are scarce. Aims: To determine fine, coarse and large root biomass and productivity along a 2000 m elevation transect. Methods: In five south Ecuadorian mountain forests along a transect from 1000 to 3000 m above sea level, fine (< 2 mm diameter), coarse (2–50 mm) and large root biomass (> 50 mm) were analysed by soil coring and excavation of soil pits. Fine root production was estimated synchronously by three different approaches (sequential soil coring, the ingrowth core method, and the mini-rhizotron technique). Coarse and large root production was estimated by recording diameter increment using dendrometer tapes. Results: Fine root biomass increased four-fold between 1000 and 3000 m; coarse and large root biomass doubled. The three approaches for estimating fine root production yielded highly divergent results, with the mini-rhizotron approach giving the most reliable data, and indicating a significant increase in fine root production with elevation. Conclusions: Our results indicate a marked carbon allocation shift from above- to below-ground towards higher elevations, which is probably a consequence of increasing nutrient limitation of tree growth with increasing elevation.
Ecological Modelling · 23 Zitationen · DOI
Structure and function of root systems at different altitudes of a south Ecuadorian montane forest
2007edoc Publication server (Humboldt University of Berlin) · 6 Zitationen · DOI
Es wurden Wurzelsysteme auf 1900, 2400 und 3000 m eines südecuadorianischen Bergregenwaldes untersucht. Ziel war es, ein besseres Verständnis über den Einfluss der Höhenstufe auf die Wurzelfunktionen Nährstoffaneignung und Verankerung sowie Speicherung von C und Nährstoffen in der Wurzelbiomasse zu erlangen. Auf 2400 und 3000 m nahmen die Wurzellängendichten (WLD) mit zunehmender Bodentiefe schneller ab als auf 1900 m. Die vertikale Verteilung der N-Aufnahme war ähnlich der Verteilung der WLD. Das Nährstoffaneignungsvermögen war also in größerer Meereshöhe deutlich mehr auf die organische Auflage konzentriert war als auf 1900 m. Nährstoffkonzentrationen in Blättern zeigten, dass auf 1900 m das Pflanzenwachstum nicht durch Nährstoffmangel limitiert war, während auf 2400 und 3000 m v. a. N, aber auch P, S und K das Pflanzenwachstum limitierten. Die schlechte Nährstoffversorgung der Pflanzen in großer Meereshöhe war vermutlich auf langsame Mineralisation organisch gebundener Nährstoffe und auf ein geringes Nährstoffaneignungsvermögen aus tieferen Bodenschichten zurückzuführen. Die Wurzelbiomasse war auf 3000 m höher als in niedrigerer Meereshöhe. Die Bedeutung des Wurzelsystems für die C-Speicherung stieg also mit zunehmender Höhenstufe. Auch Vorräte an N, S, K, Ca und Mg in den Wurzeln waren auf 3000 m am höchsten. Die Grobwurzelsysteme der Bäume wiesen auf allen Höhenstufen Verankerungs-fördernde Merkmale auf. Bäume auf 3000 m bildeten flachgründigere Wurzelteller als auf 1900 m. Wurzeleigenschaften, die die horizontale Ausdehnung des Wurzeltellers fördern, waren auf 3000 m häufiger oder ausgeprägter als auf 1900 m. Es wird gefolgert, dass eine gehemmte Tiefendurchwurzelung des Bodens in größerer Meereshöhe sowohl das Nährstoffaneignungsvermögen als auch auf die Verankerung der Bäume verringerte. Die hohe Biomasseallokation in die Wurzeln in größerer Meereshöhe weist darauf hin, dass Umweltbedingungen hier besondere Anforderungen an die Wurzelfunktionen stellen.
Scientia Horticulturae · 3 Zitationen · DOI
• Mg 2+ facilitates translocation of amino acids and sugars from leaf to fruit. • Mg 2+ foliar application reduced leaf amino acid concentration and aphid pressure, promoting plant health. • Mg 2+ foliar application increased number of fruits, demonstrating improved agricultural efficiency. • This study presents an innovative, insecticide-free approach to sweet pepper production, contributing to sustainable agriculture. • The method aligns with cleaner production principles, reducing pesticide use and supporting environmental sustainability. Fruits of sweet pepper ( Capsicum annuum L.) are among the most consumed fresh fruits, however, their production can be affected by aphids, which feed on the amino acids in the leaves. Mg 2+ in leaves plays a crucial role in the reallocation of amino acids from source organs (leaves) to sink organs (fruits). We hypothesize that foliar application of Mg 2+ can reduce free amino acid concentration in leaves by promoting their transfer to sink fruits, thereby compromising aphid colonization by reducing their nutritional basis. To test this, a two-factorial experiment was conducted with sweet pepper subjected to aphid infestation with and without leaf MgSO 4 application. The concentration of amino acids, sugars, organic acids and mineral nutrients was analysed in the leaves, leaf phloem sap and fruits. Mg 2+ application decreased the concentrations of amino acids and sugars that are key for aphid nutrition in both the leaf and phloem sap and increased the size and number fruits, indicating an increased sink strength in response to Mg 2+ . This response was accompanied by a reduced number of aphids on the entire plant. In results, the sugar and amino acid concentration in the phloem got less attractive for the aphids. We conclude that Mg 2+ worsens the nutritional situation for aphids by facilitating the reallocation of metabolites to form fruits.
Journal of Plant Nutrition and Soil Science · DOI
Abstract Background The plant pathogen Pseudomonas syringae ( Ps ) causes diseases in a broad range of hosts including important cash crops from several climate zones. In particular for woody crops, effective and environmentally friendly disease control strategies are not available. Although there is increasing evidence of a link between plant nutritional status and disease susceptibility, optimization of plant nutrition is often neglected in efforts to control Ps diseases. This review brings current knowledge on this topic together with the aim of facilitating the development of treatment recommendations in specific contexts. Literature review The article consists of three parts. First, we compiled data on the impact of mineral nutrients on Ps disease severity in woody and herbaceous species. Next, we discuss how nutrients may be related to plant defense and/or Ps virulence. Last, we consider these findings in the context of woody hosts and give suggestions for future research. Conclusions We encourage a research focus on typical nutrient imbalances (deficiencies and surpluses) in specific orchard regions; testing the role of foliar fertilizers in spring (the period of highest infection risk); analyses of the interaction between nutrient supply and the microbiome in the phyllosphere; investigating the interaction between nutrient supply and other control measures, and the impact of nutrient supply on Ps diseases in the presence of other stress factors.
edoc Publication server (Humboldt University of Berlin) · DOI
Fruits of sweet pepper (Capsicum annuum L.) are among the most consumed fresh fruits, however, their production can be affected by aphids, which feed on the amino acids in the leaves. Mg2+ in leaves plays a crucial role in the reallocation of amino acids from source organs (leaves) to sink organs (fruits). We hypothesize that foliar application of Mg2+ can reduce free amino acid concentration in leaves by promoting their transfer to sink fruits, thereby compromising aphid colonization by reducing their nutritional basis. To test this, a two-factorial experiment was conducted with sweet pepper subjected to aphid infestation with and without leaf MgSO4 application. The concentration of amino acids, sugars, organic acids and mineral nutrients was analysed in the leaves, leaf phloem sap and fruits. Mg2+application decreased the concentrations of amino acids and sugars that are key for aphid nutrition in both the leaf and phloem sap and increased the size and number fruits, indicating an increased sink strength in response to Mg2+. This response was accompanied by a reduced number of aphids on the entire plant. In results, the sugar and amino acid concentration in the phloem got less attractive for the aphids. We conclude that Mg2+ worsens the nutritional situation for aphids by facilitating the reallocation of metabolites to form fruits.
PsycTESTS Dataset · DOI
Agritrop (Cirad)
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Stammdaten
Identität, Organisation und Kontakt aus HU-FIS.
- Name
- Dr. Nathalie Soethe
- Titel
- Dr.
- Fakultät
- Lebenswissenschaftliche Fakultät
- Institut
- Albrecht Daniel Thaer-Institut für Agrar- und Gartenbauwissenschaften
- Arbeitsgruppe
- Urbane Ökophysiologie der Pflanzen
- Telefon
- +49 30 2093-46472
- HU-FIS-Profil
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- Zuletzt gescrapt
- 26.4.2026, 01:12:34