Mpufdoct2006.Pdf

IIICFRICFR Mpumalanga Regional Interest Group Field Day Date: Tuesday 10 ththth October 2006 Venue: Westfalia, Tzaneen Time: 09h30 for 10h00 PROGRAMME 09h30 TEA/COFFEE INDOOR PRESENTATIONS 10h00 Welcome and Introduction to events of the day Botha Maree HMH Francois 10h10 Self-regulation in Timber transport and PBS vehicles. ICFR Oberholzer Investigating the environmental adaptation of promising sub-tropical and cold-tolerant eucalypt species in the warm 10h40 Robin Gardner ICFR temperate climate zone of KwaZulu-Natal: four year trial results Commercial deployment of weed control standards in South 11h10 Keith Little ICFR Africa. Silvicultural regimes practised by Northern Timbers for saw 11h40 Louis van Zyl HMH log production. Drive to Christinasrust plantation passing the Merensky Show block INININ-IN ---FIELDFIELD PRESENTATIONS Effect of nitrogen, phosphorus and potassium applied after 12h20 2nd thinning, on the growth of a Eucalyptus grandis Janine Campion ICFR sawtimber stand. 13h00 Lunch at Westfalia sponsored by Northern Timbers. The interaction of pit size x water quantity x method of 14h00 application on the early survival and growth of eucalypts. Keith Little ICFR Visit to ICFR trial. Drive to Noordewenke plantation. Comparative results of CSIR developed eucalypt hybrid 14h30 Botha Maree HMH species grown for saw log production. The next ICFR Regional Interest Group Field Day will be held at Weza, in KwaZuluKwaZulu----NatalNatal on 119999ththth October 2006 For more information contact: Keith Little ( ([email protected])[email protected]) o orr Sally Upfold ([email protected]) ICFR Mpumalanga Regional Field Day © ICFR 2006 Page 1 SelfSelf----regulationregulation initiative to address heavy vehicle overloading in South AfricaAfrica.... Francois Oberholzer ([email protected]) Institute for Commercial Forestry Research, P O Box 100281, Scottsville 3209 Overloading of road transport vehicles poses a serious threat to the sustainability of the timber industry. It leads to accelerated infrastructure deterioration, increasing the cost to move freight. The Road Transport Management System (formerly known is LAP) is a project that was launched in 2003 in the timber industry to combat overloading, but also to improve driver wellness and vehicle fitness. Several other industry sectors have joined the initiative, including the Chamber of Mines, South African Aggregate and Sand Producers Association, South African Bitumen Association, The Road Freight Association and African Trucking Association. Overloading has dropped by 40% in the timber industry as a result of the project. Two concessions have been granted to accredited operators, namely “Weigh-Less” and Performance Based Standards for Heavy Vehicles (PBS). “Weigh-less” allows accredited operators to receive preferential treatments at provincial weighbridges, i.e . they will be stopped less frequently at the discretion of the traffic officials. The timber industry has also secured the right to design, build and operate two PBS vehicles. These vehicles will be designed outside the current prescriptive legislation, but with inherent safer and more efficient design features. These vehicles will also not violate any of the regulations designed to protect the road infrastructure. The GCM of these vehicles would be between 60 and 65 tons, with a total length of not more than 25 metres. ICFR Mpumalanga Regional Field Day © ICFR 2006 Page 2 Investigating the environmental adaptatiadaptationon of promisingpromising subsub----tropicaltropical and coldcold----toleranttolerant eucalypt species in the warm temperate cliclimatemate zone of KwaZuluKwaZulu----Natal:Natal: four year trial results Robin A W Gardner ([email protected]) Institute for Commercial Forestry Research, P O Box 100281, Scottsville 3209 Introduction During the past three decades the ICFR has carried out extensive site-species interaction research for the South African forestry industry. By the turn of the previous century, a limited number of promising alternative eucalypt species had been identified for potential future commercial forestry application in sub-tropical, coastal Zululand and Maputaland (Gardner, 2001a; Gardner, 2004) and cold, high altitude areas of Mpumalanga, KwaZulu-Natal and northern Eastern Cape provinces (Schönau and Gardner, 1991; Gardner, 2001b). However, uncertainty still existed about the environmental adaptability of these species, e.g. the approximate upper and lower mean annual temperature (MAT) thresholds for the different species were unknown. Without this information, it was not possible to make informed site-species matching decisions regarding the new species. To address these issues, a series of trials was established across a range of sites in the warm temperate climate zone (Smith et al . 2005) of KwaZulu-Natal during February 2001( Table 1 ). Included in the trial series were all the sub-tropical and cold-tolerant eucalypt species previously identified as highly promising in earlier ICFR site-species interaction trials (Table 2 ). Table 1 Site details for the site-species interaction trials established in the warm temperate climate zone of KwaZulu-Natal during 2001. Experiment / plantation name Rockvale Riverdale Rooipoort Eersteling District Highflats Richmond Babanango Paulpietersburg Landowner Masonite Sappi Mondi Shanduka Mondi Shanduka Latitude 30 o 12' 39” S 29 o 53' 26" S 28 o 24' 17" S 27 o 33' 39" S o o o o Longitude 30 06' 01" E 30 24' 40" E 31 05' 43" E 30 50' 32" E Altitude (m) 1100 890 1300 1080 Median & (mean) annual rainfall (mm) * 825 (836) 875 (898) 1066 (1079) 828 (838) o Mean annual temperature ( C) * 16.3 17.4 15.7 18.2 Soil classification ** Kranskop 1100 Glenrosa 1111 Magwa 1100 Hutton 1200 Soil depth (cm) 120 55 - 75 40 - 50 85 - 120 Previous crop E. grandis pulpwood E. grandis pulpwood P. elliottii pulpwood E. grandis pulpwood Planting date 08 February 2001 06 February 2001 22 February 2001 14 February 2001 * Schulze (1997) ** Soil Classification working Group (1991) EEExperimentalExperimental Design & Treatments: ••• Treatments (30 per trial): various eucalypt species and provenances ( Table 2 ). ••• Trial layout: 3 replications of a 6 x 5 rectangular lattice. ••• Trial plots: whole = 5 x 6 (30 trees); inner sample = 3 x 4 trees (12 trees). ••• Tree spacing: 2.0 m x 3.0 m. ••• Buffer rows: 2 rows of E. dunnii around each trial. ICFR Mpumalanga Regional Field Day © ICFR 2006 Page 3 Table 2 OOOriginO and representation of seedlots in the site-species interaction trials established in the warm temperate climate zone of KwaZulu-Natal during 2001. Description of origins Representation in trials ( = represented, x = not represented) Species and seedlot number Locality Lat (S) Long (E) Alt (m) Seedlot abbreviation # Rockvale Riverdale Rooipoort Eersteling C. citriodora 18062 2 Expedition Range (QLD) 24 0 37’ 149 0 02’ 400 cit 18062 x x C. henryi 10250 2 SF 616 Lockyer (QLD) 27 0 17’ 152 0 10’ 150 hen 10250 x x C. henryi 13572 2 South of Grafton (NSW) 29 0 45’ 152 0 58’ 85 hen 13572 C. henryi ZLD bulk Bulk of 12 trees ex -SGE34 (RSA) - - - hen ZLD x x x C. maculata 11187 2 SF 393 Woondum (QLD) 26 0 09’ 159 0 29’ 400 mac 11187 x x x C. maculata 16360 2 SW of Warwick (QLD) 28 0 23’ 151 0 42’ 750 mac 16360 x C. maculata 558 3 2 Richmond Range SF (NSW) 28 0 22’ 152 0 27’ 20 mac5583 x x E. acmenoides 15606 2 26.9km SE of Gympie (QLD) 26 0 18’ 152 0 49’ 385 acm 15606 E. acmenoides 17515 2 Blackdown Tableland (QLD) 23 0 49’ 149 0 02’ 800 acm 17515 x x x E. badjensis 19424 2 Badja SF (NSW) 36 0 08’ 149 0 32’ 1100 bad 19424 E. badjensis 19605 2 Brown Mt (NSW) 36 0 38’ 149 0 26’ 1000 bad 19605 E. benthamii 19282 2 Kedumba Valley (NSW) 33 0 49’ 150 0 23’ 140 ben 19282 E. benthamii 19374 2 Bents River Basin (NSW) 33 0 52’ 150 0 38’ 40 ben 19374 E. bitur binata 19809 2 Girard SF (NSW) 28 0 58’ 152 0 15’ 800 bit 19809 E. biturbinata 19812 2 Chaelundi SF (NSW) 29 0 57’ 152 0 22’ 750 bit 19812 E. cypellocarpa 19798 2 Nullo SF (NSW) 32 0 45’ 150 0 12’ 990 cyp 19798 x E. deanei 18733 2 Mt Spira bo SF29 (NSW) 29 0 21’ 152 0 04’ 1100 dea 18733 E. deanei 19281 2 Kedumba Valley (NSW) 33 0 49’ 150 0 23’ 140 dea 19281 E. dorrigoensis VRD97/06 2 Tyringham via Dorrigo (NSW) 30 0 16’ 152 0 37’ 680 dor VRD97/06 x E. globulus ssp . bicostata 18587 2 Walcha SF (NSW) 30 0 55’ 152 0 00’ 925 bic 18587 x E. globulus ssp . maidenii 18728 2 Bolaro Mt (NSW) 35 0 40’ 150 0 02’ 380 mai 18728 x E. longirostrata 11168 2 SF 197 Diamondy (QLD) 26 0 21’ 151 0 10’ 400 lon 11168 x E. longirostrata 15637 2 NW of Monto (QLD) 24 0 49’ 150 0 57’ 500 lon 15637 E. moluccana 15877 2 SF 302 Ballon (QLD) 26 0 27’ 150 0 49’ 325 mol 15877 E. nobilis 19800 2 Nullo SF (NSW) 32 0 45’ 150 0 12’ 1115 nob 19800 E. nobilis 19805 2 Mt Kaputar NP (NSW) 30 0 17’ 150 0 08’ 1250 nob 19805 E. oreades 17344 2 Newnes SF (NSW) 33 0 24’ 150 0 13’ 1000 ore 17344 x E. pilularis 13537 2 10km W Beerburrum (QLD) 26 0 57’ 152 0 52’ 40 pil 13537 x x x E. punctata 19352 2 Wingello SF (NSW) 34 0 45’ 15 00 11’ 550 pun 19352 E. punctata 19797 2 Nullo SF (NSW) 32 0 45’ 150 0 12’ 1070 pun 19797 E. saligna 17750 2 Kenilworth SF (QLD) 26 0 40’ 152 0 36’ 575 sal 17750 E. volcanica 19804 2 Mt Kaputar NP (NSW) 30 0 17’ 150 0 08’ 1130 vol 19804 x x CONTROLS: E.

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