Matches in SemOpenAlex for { <https://semopenalex.org/work/W3130549401> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W3130549401 abstract "<p>Water isotope tracing techniques in combination with laser-based isotopic analyses have advanced our understanding of plant water uptake patterns providing opportunities to carry out observational studies at high spatio-temporal resolution. Studying these highly dynamic processes at the interface between soils and trees can be challenging under natural field conditions, as available water resources are difficult to control. On the other hand, the results of small pot experiments in the greenhouse using tree seedlings are often difficult to transfer to mature trees. Here, we setup a controlled outdoor large pot experiment with three different, 4-6 meter high and 20 year old trees: <em>Pinus pinea, Alnus <span>spaethii</span> and Quercus suber.</em> We took advantage of stable water isotope techniques by tracing plant water uptake from the root zone through the xylem via isotopically labelled irrigation water. We combined ecohydrological observations of sapflow, photosynthesis, soil moisture and temperature and soil matrix potential with high resolution measurements of water stable isotopes in soils and trees to understand how soil water is used by different tree species. We monitored the isotopic composition of soil and xylem water in high temporal resolution with in-situ isotope probes installed at different depths in the soil and different heights in the tree stem. We further compared the water isotopic composition of our in-situ monitoring setup with destructive sampling methods for soil and plant water (vapour equilibration method and cryogenic extraction).</p><p>Our results from the continuous monitoring showed a distinct difference in the xylem sap isotopic signature between<em> Quercus</em> on the one hand and <em>Alnus</em> and <em>Pinus</em> on the other hand. This is likely due to different water use strategies of these tree species. The tree xylem isotopic signature of <em>Alnus</em> and <em>Pinus</em> responded to the isotopic label within one day and six days at 15 cm and 150 cm stem height, respectively. The peak isotopic signature in the tree xylem due to the label application was similar to the isotopic signature of the soil in 30 cm (for <em>Alnus</em>) and 15&#160;cm (for <em>Pinus</em>). <em>Quercus</em> showed a delayed and much slower increase in the xylem isotopic signature in response to the label and the highest values were significantly lower than the corresponding soil isotopic signatures. Our methodological comparison showed that the isotopic signature of the destructive samples (from both methods) had a larger spread and this spread tended to become larger with subsequent labeling. Destructive soil samples showed a wider isotopic variation than destructive xylem samples. The in-situ isotope measurements in comparison showed a relative constant small to medium spread for soil and xylem isotopic measurements. Our in-situ isotope probes therefore seem to be a potential alternative or supplement to destructive sampling offering much higher temporal resolution. The continuation of the labeling experiments in 2020 will allow us to further study tree-species specific water uptake strategies, which will become important under future climatic conditions in terms of development of adaptation strategies for sustainable forest management.</p>" @default.
- W3130549401 created "2021-03-01" @default.
- W3130549401 creator A5018483287 @default.
- W3130549401 creator A5034642883 @default.
- W3130549401 creator A5055461178 @default.
- W3130549401 creator A5067442586 @default.
- W3130549401 creator A5077838704 @default.
- W3130549401 creator A5084134522 @default.
- W3130549401 date "2020-03-23" @default.
- W3130549401 modified "2023-09-23" @default.
- W3130549401 title "Monitoring tree species-specific water uptake strategies via continuous in-situ stable water isotope measurements" @default.
- W3130549401 doi "https://doi.org/10.5194/egusphere-egu2020-16786" @default.
- W3130549401 hasPublicationYear "2020" @default.
- W3130549401 type Work @default.
- W3130549401 sameAs 3130549401 @default.
- W3130549401 citedByCount "1" @default.
- W3130549401 countsByYear W31305494012020 @default.
- W3130549401 crossrefType "posted-content" @default.
- W3130549401 hasAuthorship W3130549401A5018483287 @default.
- W3130549401 hasAuthorship W3130549401A5034642883 @default.
- W3130549401 hasAuthorship W3130549401A5055461178 @default.
- W3130549401 hasAuthorship W3130549401A5067442586 @default.
- W3130549401 hasAuthorship W3130549401A5077838704 @default.
- W3130549401 hasAuthorship W3130549401A5084134522 @default.
- W3130549401 hasConcept C107872376 @default.
- W3130549401 hasConcept C127313418 @default.
- W3130549401 hasConcept C157517311 @default.
- W3130549401 hasConcept C159390177 @default.
- W3130549401 hasConcept C159750122 @default.
- W3130549401 hasConcept C183688256 @default.
- W3130549401 hasConcept C185592680 @default.
- W3130549401 hasConcept C187320778 @default.
- W3130549401 hasConcept C24939127 @default.
- W3130549401 hasConcept C39432304 @default.
- W3130549401 hasConcept C49799701 @default.
- W3130549401 hasConcept C59822182 @default.
- W3130549401 hasConcept C6557445 @default.
- W3130549401 hasConcept C86803240 @default.
- W3130549401 hasConceptScore W3130549401C107872376 @default.
- W3130549401 hasConceptScore W3130549401C127313418 @default.
- W3130549401 hasConceptScore W3130549401C157517311 @default.
- W3130549401 hasConceptScore W3130549401C159390177 @default.
- W3130549401 hasConceptScore W3130549401C159750122 @default.
- W3130549401 hasConceptScore W3130549401C183688256 @default.
- W3130549401 hasConceptScore W3130549401C185592680 @default.
- W3130549401 hasConceptScore W3130549401C187320778 @default.
- W3130549401 hasConceptScore W3130549401C24939127 @default.
- W3130549401 hasConceptScore W3130549401C39432304 @default.
- W3130549401 hasConceptScore W3130549401C49799701 @default.
- W3130549401 hasConceptScore W3130549401C59822182 @default.
- W3130549401 hasConceptScore W3130549401C6557445 @default.
- W3130549401 hasConceptScore W3130549401C86803240 @default.
- W3130549401 hasLocation W31305494011 @default.
- W3130549401 hasOpenAccess W3130549401 @default.
- W3130549401 hasPrimaryLocation W31305494011 @default.
- W3130549401 hasRelatedWork W11955504 @default.
- W3130549401 hasRelatedWork W13081436 @default.
- W3130549401 hasRelatedWork W14460215 @default.
- W3130549401 hasRelatedWork W15472123 @default.
- W3130549401 hasRelatedWork W20379557 @default.
- W3130549401 hasRelatedWork W2150761 @default.
- W3130549401 hasRelatedWork W2366628 @default.
- W3130549401 hasRelatedWork W3748346 @default.
- W3130549401 hasRelatedWork W6705236 @default.
- W3130549401 hasRelatedWork W9762927 @default.
- W3130549401 isParatext "false" @default.
- W3130549401 isRetracted "false" @default.
- W3130549401 magId "3130549401" @default.
- W3130549401 workType "article" @default.