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All parameters will be tested of the DO percent confidence level with 10 per- cent change in the mean Id = 0.1) as the vegetation type is a shrubland. If adequate sample size is not met for a particular parameter, sampling will continue until 50 samples have been completed. Task 1. Collection and identification of Plant Species Plant species will be collected throughout the sample period. We will preserve a voucher specimen of all plant species we collect. The identity of a collected species will be confirmed by Dr. William A.Weber, Curator of the Herbarium, University of Colorado. Identification and nomen- ct0ture of plants will follow Weber and Johnfton 119761.. The plant list for this study will be organized alphabetically by species per i~ family per life form categories--trees, shrubs, perennial graminoids, annual graminoids, perennial (orbs, annual forbs, annual and biennial (orbs, and cryptogams. Task 2. Cover Sampling Vegetation cover will be estimated using a point-intercept method along ran- domly located and oriented transects (Mueller-Dombois and Ellenberg 19741. Fifty data points will be sampled at 1 m intervals along a 50 m transecf. For purposes of evaluating statistical adequacy, each transecf li.e., fifty .data pointsl comprises one "sample." At each point; the first hit or inter- ception along a vertical projection lupward first if overstory vegetation is present) will be recorded as vegetation Iby spseciesl, rock, soil, or litter. Vegetation intercepted below the first hit will be recorded separately; only first hits will be used in calculating percent cover. Second hits can be used In calculation of a measure of relative percent cover by species. Points are projected by means of fine cross-hairs scribed on a sighting device rigidly mounted to a heavy tripod leveled at each point. Task 3. ;Production Sampling The above ground plant biomass will be estimated by clipping a statistically adequate number of quadrats up to a maximum number of 50 quadrats. Quadrats ..;' will be rectangular shaped and 1 m by 2 m in area. Within each quadrat the current year's growth of herbaceous plants will be clipped. Graminoids will be sorted by species and forbs will be combined except for those forbs which have a significant cover. Cacti, cushion plants, trees, and shrubs will not be clipped. The clipped material will be oven dried 1105oC for 24 hours) in laboratory and weighed to the nearest tenth of a gram. Production will be expressed in grams per square meter and kilograms per hectare. n Task 4. Woody Plant Density Sampling A quadrat system would be used for sampling woody plant density. We w111 use a rectangular shaped quadrat 1 m by 50 m. We will record The number of Individual woody plants with crown roof emerging within the quadrat by species. We will express density for each species and Tor The total of all _2_ .