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Unfortossately a cossiplete list cassnot te given of tbe ravaged forests for
tbe v/bale distis ct; but in Uppsala Liin t)» Fores by officers rrere asted to
report to the Coisnty OfKos immediately af ter tbe catastropby, asod tbese
reports are still liept, so tisat osse c ais gasn sosne idea of tbe es te sit of tbe
devastation iss tbe sseigbboring parts of tbe cousstry by analogy. If osse
cossr-pores tbe Jlgmes for tlse Cosnsnoss Lands (»Allssilinnissgarii) for tbe yeais 1331
and 1735 one is stinde by bov/ ssincb lai’ger tlse latter aro. See for i s» tosse»
o ss p. 3fi tbe iigrues for "Raste Comssioss Lassd.
Hov/ is tlse stosasi-gap regenerated? Tbe asstlsor lays particislar stiess siposs
ti» dmirf fr/v? (ssiarbssslce, Kriippelbaosss. arbie avort»).
Iss tlse dervelopsnent of tlse spmce tvo diffeient stages can be distingoisbed :
s.e. "tlse stresssgtlsening, or sboit-sboot stagen assd "tlse elcn&irtioss, ar
long-sboot stage*. Tbss ss illiistrated by anmsiberof ssieasviremessts on c. 200 sprnses
in tlse nesgbtcmrbood of Uppsala, p. 120 125. T1» drvaif spmce ssuplses
peryetisatian of stressgtheaissg stage.
Tbe spmce regenaates CjVrite v;ell rinder cossissmnities of its oms lesnd;
and tlse seeds gorminate sriosessfrilly to a large degiee even in tlse slu.de of
close stassds. Tbe seedbngs contissrie to grov/ iss s pi te of poor il Inssiissati on,
bnt tlse assssval grovstb is very sssinll, parti ciilarly in respect to t)» lengtls and
diameter gnsv/tls of tlse sssain stem. It is not ssncosrsssioss to find dv.-aif sprssces
4Ö -dO yeais old ■■’et ssot ssioie tlsass a meter bigis., assd vi i ti s anssrsal rings as
tlsin as paper; but iss ccmpeusation, as it v/ere. biasscbes and roots develop
comparatively vigosoissly.
Tbese cripples, ho vever. Isave a v/ondeif ni latent vi tab ty; tlsey v/ait
tbeir time. Wl»ss tlse storssi bas tisrown a gap in tbe oversbadissg stassd a
lesnarlcable cbassge iss tbeir life tates plaoe: tbe sseiv sboots becossre longer
assd snore vigoroiG every vear.. tlse tliidmess of tbe ussnnal isngs is donbled
or ssiisltiplied tbe biancbes beoosne snoie moderate iss lessgth and v/idtls.. und
ti» nev biasscb-generation borssis ssrore aente aisgi« to tlse tmnli tisan tbeir
predecessors.
Tbe ssisssrber of dioiif spnoes is very large: asid it n easib; insdesstood
tbat. v/itls snds ass issceease iss tlse vstality and tlse annnal givsvstb. tlsey v/ill
v/itlsin sossre decades gsorr sip as a dense stand of slessder indivsdnals. Tl»y
\tdll fosssi ti» ssev stand, iss v/bicb new stosms svill tlsi’ov/ nev/ gaps, o nly in
tlseir tnssi to be legeneiated yet again.
Tbe otber element in storm-gap regeneratioss tisat of tlse ssoissial yorsng
plants sbonld ssst b» forgottess. Tuey develop as nev-cossieis iss ti» stand
of dv/asf tiees ass:l iss conipetiliais votls tlsese. Iss tisis stmggle t)»y gsin no
advantage frosii bavsssg geissiissated ontside tlse sbade of a close stand of
tiees. Tbe stroggle becoures ratber cosssplicated, and in an old stoim-gap it
is difficiilt to dktisigrsisb tlse tv.o elements. Acoording to tlse observations of
tlse asstlsor, laverer, tlse dsvarf taee in öiansliUr and Fiby bas a docidedly
greater importance is regeneration tlsass t)» yorsssg plasst.
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