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Groundwater and light conditions as factors in the survival of pedunculate oak (Quercus robur L.) seedlings
Čater, Matjaž (Avtor), Batič, Franc (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1007/s10342-006-0134-6 Novo okno

Izvleček
A noticeable decline and physiological weakening of pedunculate oak (Quercus robur L.) has been recorded in the past decade in lowland parts of Slovenia. The triggers were dry climate, unfavourable precipitation patterns and human influence that brought about changes in watercourses and water tables. Regeneration and future management of this tree species is therefore questionable. To define a critical groundwater table which would permit successful regeneration, planted and naturally grown seedlings were compared in two forests differing in the degree of decline and physiological weakness of adult pedunculate oak trees. Comparison of stomatal conductance and pre-dawn water potential (PWP) showed differences of seedlings between and within forest complexes. Stomatal conductance dropped below 100 mmol m−2 s−1 at PWP values below −1.0 MPa, while closure of stomata was caused by a PWP between −1.6 and −1.9 MPa. Increased water stress equalized photosynthetic yield in both natural and planted oaks below −1.4 MPa.

Jezik:Angleški jezik
Ključne besede:dob, suša, fotosinteza, podtalnica, pedunculate oak, drought, photosynthesis, groundwater table
Vrsta gradiva:Znanstveno delo (r2)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Leto izida:2006
Št. strani:str. 419-426
Številčenje:Vol. 125, no. 4
UDK:630*111=20
ISSN pri članku:1612-4669
COBISS.SI-ID:4687481 Povezava se odpre v novem oknu
Število ogledov:396
Število prenosov:195
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

Naslov:European journal of forest research (Print)
Založnik:Springer
ISSN:1612-4669
COBISS.SI-ID:1229478 Novo okno

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