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2 <br /> <br />• • <br />have afar greater survival rate thaw a seedling, due to ixs <br />increased ability to atOre and utilize water, to withstand the <br />drying witch and endue high evspo-transpiration rate, <br />As far ea rater requirements are concerned, we can expect a <br />0;B to 20~ survival rate 18 monthb after planting seedlings <br />if no irrigation ie used,(Please refer to the ohart on pages 20 <br />of the exhibits that xe submitted at the last NLRB nesting,) <br />If hand watering is used the percentage of suzvival would only <br />be slightly increased, according to Mr, Spaulding, because moat <br />of the water applied to each tree is lost Smmediately with the <br />rapid peroolation in the planting medium, A high survival rate <br />is important because the eco-system needs to become re-eata.blished <br />as soon as possible, The wildlife uses the trees for food and <br />shelter, The tree canopy helps to dissipate the energy of <br />rainfall thereby preventing erosion problems, The root systems <br />help to stabilize the soil. I would like to request that <br />Mr, Spaulding be invited to address these issues at the next <br />nesting of the Board, <br />The most commonly used system in this type of revegetation <br />pro~eot is the drip irrigation system, If a drip syaten is used <br />we can expesct between 40~-90~ of the planted seedlings to survive, <br />In terms of cost feasibility, after 2 to 3 Years a drip Srr:Lgation <br />system is lees expensive thaw having to replace 90% of the seedlings <br />every year as would occur without an irrigation system. <br />To simplify the irrigation system, the trees could be planted <br />in rows along the length of each bench with spacing between tress <br />to vary but still averaging 8' between trees, Ib:ip irrigation <br />technology has advanced aigalflcantly in the lest few years sad <br />me.ny of the early pa•oblems, such ae clogged emitters, can be <br />totally eliminated, <br />For optimum plant growth topsoil should be brought in <br />from offaite and mixed with the stockpiled topsoil, Topsoil. <br />can be obtained from the construction projects where the extracted <br />limestone is being used in concrete. This improved topsoil would <br />result in afar healthier revegetation project, <br />Sincerel , <br />~7` <br />Robert Meldori <br />