Controls on Evapotranspiration in a Spruce Forest Catchment of the Fichtelgebirge

The effect of converting a native broad-leaved forest to a coniferous plantation forest on annual water yield: A paired-catchment study in northern Japan

“…A decrease in evapotranspiration with age (or canopy height) has been reported on many coniferous forests (e.g., Kostner et al, 2001;Komatsu, 2003Komatsu, , 2005. Though it is not known whether such a decrease is common for Japanese coniferous forests, converting old coniferous forests into broadleaved forests may not result in increased water yield even in these regions.…”

A general method of parameterizing the big‐leaf model to predict the dry‐canopy evaporation rate of individual coniferous forest stands

“…Thus, it is unlikely that such differences between evaporation rates based on the eddy-correlation method and those based on the sap-flux method would not appear for coniferous stands (e.g. Kelliher et al, 1992;Kostner et al, 1992Kostner et al, , 2001Bernhofer et al, 1996b;Hogg et al, 1997;Saugier et al, 1997;Granier et al, 2000b), because coniferous stands are usually comprised of one or two species.] Even so, substituting 1Ð0 mm daytime 1 for 0Ð5 mm daytime 1 still produced a higher degree of predictability using Method I than Method II.…”

“…Thus, accurate G a estimates were not essential for modelling the evaporation rate of coniferous stands (McNaughton and Black, 1973;Gash and Stewart, 1975;Lindroth, 1985;Hatton and Vertessy, 1990;Cienciala et al, 1994b;Granier et al, 1996a;Kostner et al, 1996Kostner et al, , 1998Kostner et al, , 2001Komatsu, 2003b).…”

Relationship between canopy height and the reference value of surface conductance for closed coniferous stands

“…Although the accuracy of estimates of G a based on the different methods differs, we did not distinguish G s data based on G a determined using the different methods because G s typically differs by only a few percent (e.g. McNaughton and Black, 1973;Gash and Stewart, 1975;Lindroth, 1985b;Cienciala et al, 1994a;Granier et al, 1996;Kostner et al, 1996Kostner et al, , 1998Kostner et al, , 2001, since G a is much greater than G s for coniferous stands (Jarvis and McNaughton, 1986;Kelliher et al, 1993;Komatsu, 2003a,b).…”