... to the fact that we
have only investigated the back-crossing behaviour of a single
Q. petraea × Q. robur F1-hybrid, and compared it to a single
tree of Q. robur and Q. petraea, respectively. Studies ... that the formation of Q. petraea × Q. robur F1-hybrids is
subject to substantial barriers (narrow arrows), but suggest that this rarely formed Q. petrae...
... domination of Uropo-
dina mites was increased and domination rate of
Parasitidae mites was decreased. Similar results
of the reaction of this group of mites to increas-
ing amount of broadleaves ... Biolog a and
Facultad de Ciencias, Universidad Nacional Autónoma de
México. México, Sociedad Latinoamericana de Acarolog a:
193–196.
SKORUPSKI M., RADZIKOWSKI A. , CEITEL J
., 20...
... 463
Table 1. Basic data about experiments and data collection
inning
experiment
Geografi cal location*
of stands
Established
(year)
Age
of establishment
(years)
Elevation
of stands
(m a. s.l.)
Variants
Increment ... step of data analyses). We compared the
variability of growth response in control un-
thinned variants against thinned variants.
RESULTS
e eff ect of droug...
... since carbon assimilation
increases with increasing N and SLA, and decreases with in-
creasing C and LD (Tab. II). It has been suggested that includ-
ing additional traits related to water relations ... Equations of Caemmerer and
Farquhar [8] were used to calculate net carbon assimilation rate on
a leaf area (A, µmol m
−2
s
−1
)ormass (A
m
, mmol g
−1
s
−2
)basis,
stomatal conductance...
... between thinning intensity
and radial increment (1.30 m) for an individual tree. Thinning treatments increased annual ring width especially a few years after thinning. Heavy
thinning treatments ... length in each an-
nual ring and the sample size for making statistically significant anal-
ysis for each group was determined. Then all annual rings samples
were macerated. Maceration was condu...
... University of Regina, Regina, Saskatchewan, S4S 0A2 , Canada
c
Department of Renewable Resources, University of Alberta, Faculty of Agriculture, Forestry and Home Economics, University of Alberta,
442 ... whole aspen forest canopy. This par-
ticular structure explains the penetration of lateral light, which
results in a gradual attenuation of light with decreasing solar
el...
... 10.1051/forest:2003045
Original article
The key-role of topsoil moisture on CO
2
efflux from a Mediterranean
Quercus ilex forest
Richard JOFFRE
a
*, Jean-Marc OURCIVAL
a
, Serge RAMBAL
a
, Alain ROCHETEAU
a, b
a
Équipe ... c+()∂Tgθ()∂T==
522 R. Joffre et al.
Strong interannual variability affected autumnal recharge. As
a consequence, winter field capacity could be reached e...
... diversity
(Shannon index)
Uncut areaaaaaaaaaaaa
Clear-cut area – b bc c cd cd de de de e a
Evenness Uncut area ab ab ab ab ab ab ab ab ab ab ab
Clear-cut area – c cd d cde cd e a a a b
Figure 3. ... climate
in the Cevennes as being transitional between Mediterranean and Oce-
anic. The mean annual rainfall is about 1 300 mm, mainly occurring
in the months October through March. Holm...
...
(TF-
BP-DD).
Canopy
leaching
of
Ca,
Mg
and
K
minus
canopy
leaching
of Ca,
Mg
and
K
asso-
ciated
with
foliar
excretion
of
weak
acids
was
further
assumed
to
equal
uptake
of
H and ...
Correspondence
and
reprints
E-mail:
johan.neirynck@rug.ac.be
canopy
exchange
and
Ca-,
Mg-
and
K-bear-
ing
particles
are
assumed
to
have
the
same
mass
median
diamet...