19:55. Poplar is currently planted for erosion prevention in pastoral land with the primary purpose of retaining pastoral production. crack willow was the main species used for nearly 100 years. POPLAR PARTNERSHIP LIMITED was incorporated on 02 May 2002. 1986) but sawn timber recoveries are lower than for radiata pine, with the main timber defect being knots (Wilkinson, 2000). Poplars prefer and grow best in fertile, moist and friable soils (Van Kraayenoord and Hathaway, 1986; Hunter and McIvor, 2008). All non-text content is subject to specific conditions. fragilis, S.alba, S. cinerea and ACER PALMATUM Osakazuki - Japanese Maple. This is a balsam poplar, originally selected in Belgium, and released in New Zealand in 1979. Pruning is best undertaken in Autumn rather than spring to minimise epicormic shoots (M. Hunter, pers. The contrast between the Leylandii Pinesand Poplars complement each other. Fodder - An added benefit of the willow and poplar leaves is that the young branches can be pruned off and given to stock when feed is short, over the dry summer months. Because poplar prefers deep soils, growth rates tend to decrease going up the slope (McIvor et al. It can be borrowed free of charge, or purchased for $11 plus postage. Although conservation poplar plantings do not ensure erosion will be prevented, with spaced plantings of poplar, production losses attributable to landslides could potentially be significantly reduced once the trees reach diameters greater than 30cm (McIvor et al. POPLAR PARTNERSHIP LIMITED. Our range includes New Zealand natives, specimen trees, landscape shrubs, specialist forestry species, fruit trees and plenty more. 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Words: Sheryn Clothier Cows like ryegrass and it makes them fat. Pollarding Willows from Within the Tree - Duration: 5:18. Willow hybrids and hybrid poplars are used for Solutions. Poplar only grows in low rainfall areas where the water table is high (Wilkinson, 2000), so on hillsides in summer-dry regions, planting should be restricted to channels, tunnel gullies and seepage areas (Wilkinson, 2000). To qualify, landowners need to have a Farm Environment Plan (or planting plan) and commit to maintaining the trees so they can do the job they’ve been planted to … On good sites it grows faster than radiata pine, it can reach a marketable size in 20 years or less, and it can attract better prices than radiata pine as export logs. Therefore, some evidence-based research would be required before introducing poplar into the building code as an acceptable solution for structural applications. Poplar is a fast growing tree, but site adaptability for the range of poplar cultivars grown in New Zealand is not yet fully understood (Wilkinson, 2000). There are a few willow clones that do not have brittle ACER RUBRUM Brandywine - Red or Canadian Maple. increasingly used to stabilise slopes in the central North villages (pā) associated with the prophet Te Kooti. slopes. Pressure treatment of dry sawn timber with CCA salts has been shown to provide variable penetration (Williams et al. Poplar wood has low to medium density, an even pale white colour, indistinct growth rings and a fine texture (Wilkinson, 2000). CARPINUS … StringDancer 28,778 views. © Crown Copyright. NZ $0.00. Cottonwoods (Populus deltoids)grow throughout much of the U.S., and especially along streams and rivers. Poplar requires at least moderate soil moisture (Wilkinson, 2000). the Soil Conservation Centre in Aokautere, near Palmerston The aim is to restrict the knotty core to a central diameter of 150 mm over pruned branch stubs, but epicormic shoots that follow pruning can be an issue (Wilkinson, 2000). yunnanensis). for stock during droughts. BETULA JACQUEMONTII - Himalayan Birch. The mahoe is an important nursery tree for most native species, plus it is known for its distinctive white bark (which is often covered in white lichen), and heavy crops of small purple berries on the female trees (if a male is nearby). stock proved invaluable in the mid-1970s, when two virulent comm) but two months of boron diffusion provided boron retention well above the requirements of the H1.2 specification for both 25 mm and 50 mm thick boards (Williams et al. opulus uplifted hand – the central symbol of their faith. Other early introductions included S. If large areas of erodible hill country are to remain in pastoral production in New Zealand, there is potential for poplar agroforestry to create "a large, economic resource of pruned poplar sawlogs", an industry with "contrasting fibre and wood characteristics to those of pine" suitable for integration with pastoral farming as a viable crop that complements the radiata resource (Wilkinson, 2000). Root mass is proportional to tree diameter and high planting densities are required for younger poplar trees to develop a structural root network sufficient to control erosion (McIvor et al. 25m SKU: popyun6 Category: Trees Tags: chinese poplar , deciduous , hardy , populus , shade , shelter , specimen , sun , yunnan poplar , yunnanensis recommends Lombardy Poplars. Poplars can grow very tall and anchor their trunks with powerful roots. Poplar and willow ambassadors launched around New Zealand Posted on October 01, 2020 A group of top farmers have joined forces with the Poplar and Willow Research Trust to help promote the value of poplars and willows on New Zealand farms. Within-cultivar density varies little between region, site and position in the tree (Wilkinson, 2000), suggesting that very even strength properties can be expected, possibly an advantage when characterising strength properties for use in structural products. Small and inconspicuous individual flowers occur in clusters of spikes (<17 cm long, Sept-Nov) are followed by smooth fruits (<8-10 mm diameter) made up of two sections with a groove in between, and two small 'antennae' that stick out from the top. on old trees.12 It became naturalised in NZ in 198313. (Hocking, 2006a). NZ $0.00. Having animals without trees means you have only half an ecosystem. www.go-eco.co.nz. A poplar or willow pole is a young tree stem between 1 and 3.5m long, which roots and sprouts when planted in the ground. The fall foliage is a yellow color, but these trees are not primarily grown for their autumn display value. Machining properties are inferior to radiata pine (Wilkinson, 2000). Knowles (2006) suggested that "the low stockings often employed for poplar pole planting may make them less effective for erosion control than commonly thought", while a 1992 study showed that mature spaced trees, where well maintained, "reduced soil erosion by about 60% to 70%, while poorly maintained poplar plantings had minimal effect." Queenstown's famed poplar trees have crushed cars, damaged a motel and killed a man, but the council still won't test the internal rot of the tree trunks. were among the early introductions. These roots might cause problems for homeowners or gardeners who are not familiar with basic poplar tree facts. Applications include decorative veneers, plywood, construction, furniture and wood-based composites (McIvor, 2010). Although boron penetration has been found to be satisfactory for protection against insect attack in protected interior situations (Wilkinson, 2000), protection to the H1.2 hazard class required for structural applications would require demonstration of durability performance equivalent to H1.2 treated radiata (T. Singh, pers. Its growth rate is reasonably rapid, and it is highly resistant to both poplar rusts and to Marssonina . Poplar saws easily (Williams et al. to be cleared to prevent flooding. Resistant strains, selected from plants held at 2011). Poplar, (genus Populus), genus of some 35 species of trees in the willow family (Salicaceae), native to the Northern Hemisphere. on sandbars and banks they can soon choke the waterway. Leylandii Pines are very versatile and would compliment any acreage. The arrival of the species in New Zealand is, however, not well documented. Willows were also an early import. Desiccating winds are damaging (Van Kraayenoord and Hathaway, 1986) and trees become deformed and stunted where planted on exposed upper slopes and ridges (Wilkinson, 2000). Farming poplar for carbon also offers hill country livestock farmers an opportunity to reduce erosion risk at low cost, with the requirement being for 30% tree canopy cover, potentially fulfilled with as few as 40 space planted trees per hectare (Eyles, 2010). are easily grown from stem cuttings. The New Zealand breeding programme has aimed for a basic wood density of at least 360 kg/m3 (Wilkinson, 2000). A very tall, fast growing tree that remains tight and upright in form as it grows. 5:18 . Island. 1 framing (Wilkinson, 2000), provided adjustments were made for density; and critical joints had additional fixing (Wilkinson, 2000). However, poplar fencing may not hold nails and staples as well as radiata pine (Williams et al. the country. Poplar pulps have excellent papermaking qualities suitable for fine paper production (Williams et al., 1986) and pulps with "high bulk, moderate strength properties, and excellent optical properties" can be produced from poplar (Richardson and Jones as cited in Wilkinson, 2000), offering an excellent addition to a softwood base of radiata pine (Williams et al., 1986). Selected poplars and willows are also used for 2011). (Salix babylonica) cuttings, reputed to be from Willows have been extensively used for river control, and NZ $0.00. The bark turns black and develops furrows as the tree ages. Trees provide shelter, food, and medicine, capture and recycle waste, and provide habitat for beneficial companions. These trees thrive in moist areas and additionally; their bright yellow Autumn foliage is very attractive. Poplar prolifically produces epicormic shoots when pruned, which need subsequent removal. Trading for more than 100 years, our established plant nursery stocks a wide range of native trees and other varieties, delivered across New Zealand. (P. deltoides) and silver poplar (P. alba) TreeLine has a number of different Poplar and Willow tree species available for sale. Pruning for timber requires an initial form prune before year two and for clearwood requires interventions from year two to four, with lifts every two years until the lifts reach between six and eight metres (Hunter and McIvor, 2008), best achieved by retaining 50% of the height of the tree as green crown (Wilkinson, 2000). Fill a 5-gallon bucket three-quarters full of water. Commercial re-use may be allowed on request. Globally, emerging applications for poplar include engineered wood composites, chemical extracts and bio-energy (McIvor, 2011). utility timber, although the poplar market in New Zealand is small and fragmented. The very rapid growth rate makes it ideal for use in a shelter belt situation or as a very tall screen. Also known as Chinese or Yunnan Poplar that has dark green foliage that remain’s late into autumn.A fast growing specimen tree that is suitable for shade or as shelter belt.Hardy and deciduous. Suitable for general soil conservation and typically used on lower slopes. 1986) with Wilkinson (2000) reporting that "CCA-treated poplar has been widely used for fence battens and gates". NZ $0.00. Lombardy poplar (Populus nigra ‘Italica’), eastern cottonwood (P. deltoides) and silver poplar (P. alba) were among the early introductions.