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Prunus and other flowering ornamentals have a great deal <br /> of public appeal, but if overplanted creates a potential risk. <br /> Prunus should still areas to ensure a wide range t of tree <br /> i n high visibility <br /> Langley Tree Nursery inventory includes a very <br /> significant proportion of prunus tree species. In order to <br /> diversify the species composition of the street tree <br /> population the city should: • <br /> * Maintain .a list of approved tree species and cultivars for <br /> planting on the city right of way; . <br /> * Make alternate arrangements for purchase of liner tree stock <br /> for Langley .Tree - 'Farm- and : ; caliper. •,-tree - stock for direct <br /> boulevard planting:.: and .. at ..1..:. <br /> * Utilize a. Species Sele Proc and develop a Master <br /> Street : Tree Plan. _ -: V.I _ .- .. , ,..".!:1 4 :. . . <br /> 9.2 Policy . Recommendation: - The:. ,..of `; annua l ;; tr planting <br /> ..`. shoula ibe- •increased ;t 41004 .reeatperizear_ to ensure that a <br /> ' t a <br /> = cn _be achieved within <br /> - - • "" ` straat tree -.stockingga ot�TO ; pescea :dQ�ed as the ratio <br /> e: �: - 1:'20 • ye period: • The stockingr -ia <br /> of planted tree sites to.total available: tree sites. <br /> ._ � � - -:-.7. - : _.; -...; -� • :,:m.-:- �._ or K :: 53= percent .. of their <br /> ' • <br /> . 0 i r Vancouver .. - curreii f il - c, l l 6 .�' , percent stocking <br /> �• p otential planting sites .- a <br /> rate.: By increasing the.. planting-- level: from 1,500 trees per <br /> year to be :: an <br /> 3,000f .trees 3.peri. .Y�cr a tre stocking level of 70 <br /> - - - percent. ' could be . ,. by : he - =year 2009. A 70 percent <br /> -. attainable goal by <br /> - stocking: rate has been found to,. _ in North America <br /> • progressive municipal urban_ forestry programs <br /> (See Figures 3 and 4 below) ... . - - - <br /> Figure 3 Figure 4 . <br /> Planting Rate and Stocking Rate <br /> Planting Rate Comparisons � �,,_____, <br /> i ..»..- . s w...1 .' <br /> .N <br /> ... 4A04 11V44..r4.84 u <br /> son Thmoromor <br /> N a \ \ \ \ \ <br /> N \ \ \ \ \ <br /> N . M r N N � �f... <br /> • an.lW Wombs N M.ntlp./ri.r lot 20 'hare <br /> �.,..,r.r 42% • aw..�.r.�.l K.t1 Mr <br /> • NOTE: Park Board programs would provide for 2,800 tree plantings and engineering department programs <br /> would provide for 200 tree plantings. <br /> -8- <br />