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LJUBLJANSKO BARJE KOT MODELNI TALNI EKOSISTEM ...

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Zveza med vodnim potencialom (kPa), gravimetrično vsebnostjo vode<br />

(g/g) in WHC (gravimetrični % kapacitete za zadrževanje vode) v<br />

peščenih, glinastih in šotnih tleh – HC, LC = nizko barje; Kozler =<br />

visoko barje<br />

tens ion - kPa<br />

600<br />

500<br />

400<br />

300<br />

200<br />

100<br />

0<br />

pesek<br />

50%WHC<br />

des orption curves - ras tlinam in mikrobom lahko dos topna voda med 0.3 in 100 kPa<br />

glina<br />

50%WHC<br />

100%WHC 100%WHC<br />

y = 2E+20x -10.221<br />

R 2 = 0.9971<br />

LC-50%WHC<br />

y = 3E+23x -10.985<br />

R 2 = 0.9995<br />

LC-80%WHC<br />

HC-50%WHC<br />

LC-100%WHC HC-80%WHC<br />

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190<br />

gravime tric w ate r conte nt - % (g w ate r/g s oil x100)<br />

HC LC pesek glina<br />

LC HC kozler. - 100% WHC > 800 % gravimetric water content<br />

HC-100%WHC

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