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11 <br /> 4 . 0 Associated Factors in Revegetation/Reclamation <br /> 4 . 1 Litter <br /> Plant residue was collected from each of the <br /> plots sampled. Current growth was separated from previous <br /> season' s growth at the time of clipping. Table 4 summarizes <br /> the totals in pounds per acre, air-dry, for the three <br /> areas studied. Plant residues take an important part in <br /> erosion control and it is of interest to obtain a quanti- <br /> tative measure of this element in reclamation. The marked <br /> difference in litter between the 1985 and 1986 reclamation <br /> areas is possibly the result of several factors . First is <br /> the heavy weed growth in the previous year. Second it is pos- <br /> sible that wind action may have whipped residues away, and <br /> third it was observed that rabbit and rodent use appeared <br /> more noticeable in the 1986 area than in the 1985 area. <br /> The practice of planting into a sorghum stubble <br /> which was started in 1988 will be highly beneficial . The <br /> plant residues from the sorghum will provide erosion <br /> control and conserve moisture. <br /> 4 . 2 Density <br /> The number of plants per areal unit serves as a <br /> reliable and quantitative measure in evaluating the reclam- <br /> ation seedings , (Table 5) . Decisions in the counting of <br /> plants in the sampling plots are dependent on judgement to a <br /> certain degree . This is because a grass plant is counted as <br />