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Çѱ¹ÀܵðÇÐȸ / v.17, no.4, 2003³â, pp.155-163
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( Rootzone Profile, Trickle Irrigation System and Turfgrass Species for Roof Turf Garden )
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This study was conducted to find out suitable rootzone profile, irrigation system, and turfgrass species for roof turf garden. Treatments of profile with soil amendment were Mixture I: Perlite(PL)60£¥£«Vermiculite(VC)20£¥£«Peatmoss(PM)20£¥, Mixture II: PL60£¥£«VC 10£¥£«PM20£¥£«Sand(SD)10£¥, Mixture III: PL60£¥£«VC20£¥£«PM20£¥ and Mixture IV: PL60£¥£«VC10£¥£«PM20£¥£«SD10£¥£«Styrofoam 5cm as a drain layer. To test trickle irrigation for roof garden, intervals of main pipe spacing(50cm, 100cm) and drop hole distance(15, 20, 30, 50 and 100cm)were treated, To select most suitable turfgrass species or mixture, Bermudagrass 'Konwoo', Zoysiagrass 'Konhee' and cool-season grass(Kentucky Bluegrass 80£¥ £« Perennial Ryegrass 20£¥, Tall Fescue 30£¥ £« KB50£¥ £« PR 20£¥)were tested. In particle size analysis, the soil amendments Perlite and vermiculite showed very even distribution, however, peatmoss contained mostly coarse particles with fiber over $Phi$ 4.75mm. Under field moisture condition, vermiculite and peatmoss showed 350£¥ water holding capacity, on the other hand, sand or Perlite showed 115£¥ and 166£¥, respectively. Total weight of soil profile was 139.2kg/$m^2$ with Styrofoam drain layer without sand, which showed most lightest among treatments. Turf quality also resulted positve with Styrofoam drain layer installation. On trickle irrigation system, the proper interval of main drain pipe spacing and drop hole distance were 50cm and 50cm, respectively, In irrigation frequency, once per a day for 15 minute irrigation with 2 1/hr showed the best results on turf quality. Among turfgrass species or cool season grass mixture, warm season turfgrass fine leaf type zoysiagrass 'Konhee' and Bermudagrass 'Konwoo' showed very acceptable result on all over the treatments of rootzone and irrigation system. To apply cool season grasses for the roof garden, advanced researches may be needed to establish the proper soil amendment, rootzone profile, and irrigation system, Application of Bermudagrass 'Konwoo' for roof turf garden also needs successive tests to overcome winter injuries.
 
Ű¿öµå
rootzone system;trickle irrigation;turfgrass;roof turf garden;
 
Çѱ¹ÀܵðÇÐȸÁö / v.17, no.4, 2003³â, pp.155-163
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922299719)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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