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Eduard Schratz 《Planta》1928,6(2):192-215
Ohne ZusammenfassungMit 22 Textabbildungen. 相似文献
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v. Berg Kuckuck Stubbe K. L. Noack v. Witsch v. Berg Lang Hackbarth Schaper Ufer Propach Schratz R. Schick Fuchs Hassebrauk Hans Freytag Zimmermann Beckmann Zimmermann Schmidt W. v. Wettstein Kuckuck 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1937,9(9):239-248
Ohne Zusammenfassung 相似文献
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Eduard Schratz 《Planta》1932,16(1):17-69
Ohne ZusammenfassungMit Unterstützung der Deutschen Notgemeinschaft. Mit 20 Textabbildungen. 相似文献
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Jannes Muenchow Petra Dieker Thea Böttcher Jonas Brock Gregor Didenko Tobias Fremout Desiree Jakubka Anke Jentsch Daniel Nüst Michael Richter Eric Frank Rodríguez Rodolfo Arismendiz Rodríguez Rütger Rollenbeck Pablo Salazar Zarsosa Patrick Schratz Alexander Brenning 《Ecography》2020,43(12):1878-1890
The tropical dry forests of NW Peru are heavily shaped by the El Niño Southern Oscillation (ENSO), where especially El Niño brings rain to arid to semi-arid areas. However, the resulting effects on biodiversity patterns remain largely unknown as well as the effect of environmental variables on the floristic composition under varying rainfall patterns. Therefore, we studied the spatio-temporal effects of different ENSO episodes on floristic biodiversity along a climatic gradient ranging from the coastal desert to the Andean foothills. We sampled 50 vegetation plots in four years representing different ENSO episodes. To highlight the spatio-temporal changes in floristic composition and beta diversity across ENSO episodes, we predicted ordination scores with a Generalized Additive Model. We applied variation partitioning to test if topographic or edaphic variables gained in importance during more humid ENSO episodes. Additionally, we executed an irrigation–fertilization experiment to quantify the beneficial effects of the water–nutrient interaction under different simulated ENSO rainfall scenarios. Plant species richness increased under humid conditions during the humid La Niña (2012) and the moderate El Niño (2016), and slightly decreased under the very humid conditions during the coastal El Niño (2017). The spatial prediction revealed that specific vegetation formations became more pronounced with increasing water input, but that a large water surplus led to the disruption of the strict order along the climatic gradient. Edaphic and topographic variables gained in importance with increased water availability (2012 and 2016), however, this effect was not further amplified under very wet conditions (2017). The experiment showed that plant cover under Super Niño conditions was three times higher when fertilized. Overall, our spatial predictions concede detailed insights into spatio-temporal ecosystem dynamics in response to varying rainfall caused by different ENSO episodes while the results of the experiment can support farmers regarding a sustainable agrarian management. 相似文献
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Krumbholz v. Berg Stubbe Barthelmehs J. Schwemmle Hackbarth Autoreferat Hassebrauk Hassebrauk v. Rathlef Ufer Schratz F. Schwanitz Ludwigs Hackbarth Scherz Schmidt Hülsbruch R. Schick 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1936,8(10):271-280
Ohne Zusammenfassung 相似文献
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Eduard Schratz 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1931,3(2):45-57
Ohne Zusammenfassung 相似文献
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