In: Journal of Hydrology and Hydromechanics, vol. 68, no. 4
Roberto Corona - Nicola Montaldo
Detaily:
Rok, strany: 2020, 338 - 350
Jazyk: eng
Kľúčové slová:
Evapotranspiration; Rock moisture; Water uptake; Sap flow; Energy balance.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
Mediterranean ecosystems are typically heterogeneous and savanna-like, with trees and grass competing for
water use. By measuring sap flow, we estimated high transpiration of wild olive, a common Mediterranean tree, in
Sardinia despite dry conditions. This estimate agrees with independent estimates of tree transpiration based on energy
balance, highlighting the wild olive’s strong tolerance of dry conditions. The wild olive can develop an adaptation
strategy to tolerate dry conditions. In this Sardinian case study, the wild olive grew in shallow soil, and the tree roots
expanded into the underlying fractured basalt. The trees survived in dry periods using water infiltrated during wet
seasons into fractured rocks and held in soil pockets. We estimated a high upward vertical flux through the bottom soil
layer from the underlying substrate, which reached 97% evapotranspiration in August 2011. The water taken up by tree
roots from bedrock hollows is usually neglected in ecohydrological modeling.
Ako citovať:
ISO 690:
Corona, R., Montaldo, N. 2020. On the transpiration of wild olives under water-limited conditions in
a heterogeneous ecosystem with shallow soil over fractured rock. In Journal of Hydrology and Hydromechanics, vol. 68, no.4, pp. 338-350. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0022
APA:
Corona, R., Montaldo, N. (2020). On the transpiration of wild olives under water-limited conditions in
a heterogeneous ecosystem with shallow soil over fractured rock. Journal of Hydrology and Hydromechanics, 68(4), 338-350. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0022
O vydaní:
Vydavateľ: VEDA, Publishing House of the Slovak Academy of Sciences, Bratislava, Slovakia
Publikované: 15. 12. 2020