Laserfiche WebLink
• color IR photography which shows a mottled pink coloration, but overall the coloration is <br />e Lighter pink, indicating conditions are not strongly subirrigated later in the season. <br />This corroborates Ms. Moon's observation that production drops off later in the summer. <br />Detailed vegetation sampling of the Annand field was conducted in the summer of 1992. <br />This included 15 cover and 50 production samples randomly located in the field and meeting <br />sample adequacy for each parameter (2-tailed t test at 90 percent confidence and infinite <br />degrees of freedom) as specified in the Division's vegetation guidelines. The cover <br />sampling does indicate subirrigated areas do exist in the field based on composition. <br />However, a number of the samples contain predominantly upland species which also occur in <br />areas of more mesic site conditions. This same situation occurs in the mesic drainage <br />type in the upland areas of the permit where better topographic position, soils, and <br />enhanced moisture from drainage conditions allows for increased productivity. The <br />production data collected in the field shows a rather low average yield of 2632 pounds per <br />acre, ranging from 1088 pounds per acre to 4943 pounds per acre. By comparison, the cadge <br />pasture in upland reclaimed areas of the nearby Seneca II Mine produced over 3100 pounds <br />per acre in 1992. In CRP lands located in and adjacent to the Yoast haul road corridor, <br />• 1992 annual production averaged 3542 pounds per acre. These comparisons are based on the <br />fact both the upland areas end the improved pasture field ere comprised predominantly of <br />herbaceous species. The improved pasture upland type located to the north and south of <br />the field were not included because these fields have a sod-bound smooth brome composition <br />which does not reflect the true potential of the sites. Sod-bound smooth brome develops a <br />loose sod and a short statured vegetation with low productivity. <br />The improved pasture subirrigated type is not notably more productive than upland types <br />with predominantly herbaceous composition in the area based on the above examples. <br />Approximately 28 percent of the production samples in The field had less than 2000 pounds <br />per acre production and if the reclaimed 4adge Pasture's production of 3700 pounds per <br />acre is used as a measure of comparison, 68 pe rtent of samples in the improved pasture <br />were below this value. Thus, the acreage influenced by subirrigation in the improved <br />pasture-subirrigated type may be even less then the 10.9-acre estimate and attests to the <br />variable conditions occurring there. The above production figures result in an estimated <br />stocking rate of 18 animal units per month, or 6 cows for a 3-month grazing period. This <br />is hardly significant in terms of regional agriculture. <br />• <br />In Annand Draw, soil information was collected from one soil pit for the soil survey (Tab <br />15 Revised 03/24/95 <br />