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� � . ---a <br /> �: <br /> _ .. ( d� : <br /> �' ��� . <br /> _ . _ .._.._ _ . <br /> , <br /> (2) Unacceptable buffer areas have the following qualities, including but not <br /> limited to: <br /> a. Undesirable plant species (including but not limited to reed canary <br /> grass, common buckthorn, purple loosestrife, leafy spurge and <br /> noxious weeds), or <br /> b. Lacking a layer of organic thatch or duff,or <br /> c. Topog�raphy which tends to channelize the flow of surface runoff, <br /> or <br /> d. Fs characteristically unlikely to retain nutrients and sediment. <br /> _ , (3) Buffer areas which have been broken or cultivated within the past ten(10) <br /> consecut�ve �years must be restared to a condition consistent with an <br /> acceptable.buffer area defined in Section 78-1645(b)(1), a restoration or <br /> landscape�`plan must be submitted to the Planning Director, which <br /> restoration shall include, replanting,and maintaining according to each of <br /> the following guidelines: �-�' <br /> a. Buffer areas sl�all be planted with a seed mix containing one <br /> hundred(100%)percent perennial native plant species, except for a <br /> one-time planting of an annual nurse or cover crop such as oa#s or <br /> rye. <br /> b. The seed mix to be used shatl consist of at least twetve(12}pounds <br /> pure live seed (PLS) per acre of native prairie grass seed and five <br /> (5) pounds PLS per acre of native forbs. Native praairie grass and <br /> narive forb mixes shall contain no fewer than four(4) and five (5} <br /> species respectively. � <br /> c. The annual nurse or cover crop sha.11 be applied at a rate of twenty <br /> {20)pounds per acre. <br /> d. Native stuubs and or trees may be used in addition to forbs and <br /> grasses. SYuvbs shall be distributed so as to provide a natural <br /> appearance and shali not be planted in rows. <br /> e. Native prairie grasses and forbs shall be planted by a qualified <br /> contractor. <br /> f. No fertilizer shali be used ii�: establishing new buffer zones, except <br /> on highly disturbed sites when deemed necessary to establish <br /> acceptable buffer vegetation and then limited to amounts indicaiec� <br /> by an accredited soil testing laboratory. <br /> Pav� h nf» <br />