دورية أكاديمية
More extreme and frequent drought periods reduced crop production and altered stable isotope ratios of C and N in plants
| العنوان: | More extreme and frequent drought periods reduced crop production and altered stable isotope ratios of C and N in plants |
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| المؤلفون: | Watzinger Andrea, Prommer Judith, Spiridon Andreea, Kisielinska Weronika, Hood-Nowotny Rebecca, Formayer Herbert, Wawra Anna, Hösch Johannes, Miloczki Julia |
| المصدر: | Die Bodenkultur, Vol 74, Iss 1, Pp 35-48 (2023) |
| بيانات النشر: | Sciendo, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Environmental sciences |
| مصطلحات موضوعية: | plant production, drought, 13c and 15n isotopes, agroecosystem, pannonian region, pflanzenwachstum, trockenheit, 13c und 15n isotope, agrarökosystem, pannonische region, Environmental sciences, GE1-350 |
| الوصف: | Climate change scenarios predict more frequent and intense drought periods for 2071–2100 in the most important and intensively used agricultural region of Austria, the Marchfeld. Current and predicted lower precipitation scenarios were simulated at a lysimeter station for 9 years. Plant biomass, nitrogen (N) and carbon (C) content, and δ13C and δ15N values of plant compartments were monitored in years 7–9. Aboveground biomass of cereals and grain yield decreased under the predicted scenario, while the quality of grain (% N) was unaffected. Weed and catch crops grown in winter were not affected or were even positively affected, possibly due to the accumulation of nutrients in the soil following the lower plant uptake in summer. Accordingly, low plant δ15N values were mainly attributed to the presence of higher proportion of mineral fertilizer in the predicted precipitation scenario. As expected, water stress significantly increased δ13C values in plants grown over summer, while this was not seen for plants growing over winter. Fertile agricultural soil might ameliorate but cannot outbalance the negative impact of more frequent and intense drought periods. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | German English |
| تدمد: | 2719-5430 |
| العلاقة: | https://doaj.org/toc/2719-5430Test |
| DOI: | 10.2478/boku-2023-0004 |
| الوصول الحر: | https://doaj.org/article/71922756948c4117aa870755447c53f2Test |
| رقم الانضمام: | edsdoj.71922756948c4117aa870755447c53f2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 27195430 |
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| DOI: | 10.2478/boku-2023-0004 |