mark dmas & collect data identify plants on the dma take photos determine sample interval (2.75 m...
Post on 15-Dec-2015
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Mark DMAs & Collect Data Identify Plants on the DMA Take photos Determine sample interval (2.75 m = 40 plots each side for a 110 m DMA) Use random # to start first plot Uses 42 x 50 cm plot (2 Daubenmires) Locate Greenline as per rules Follow rules exactly for each procedure Slide 2 Located by pacing Monitoring the DMA (the turn-around) Sample entire length of DMA, Both sides Sample entire length of DMA, Both sides At the top of the DMA, measure the distance from last plot to marker, cross to the other side measure the remaining part of the plot interval & place the frame for the next plot. Continue downstream to the lower marker. At the top of the DMA, measure the distance from last plot to marker, cross to the other side measure the remaining part of the plot interval & place the frame for the next plot. Continue downstream to the lower marker. Slide 3 Important for precision - repeatability Slide 4 A. Perennial Herbaceous Vegetation, Shrub/Tree Seedlings, Embedded Rock, Anchored Wood (or any combination) the length & width of 1 quadrat (20 by 50 cm) with no patches of bare ground, litter, or nonvascular plants greater than 10 percent of the plot (10 by 10 cm - 4) & that meet all rules. RocksSlide 5 Slide 6 1. Perennial Herbaceous Vegetation, Shrub/Tree Seedlings: 25% live foliar cover rooted in plot (Shrub & Tree Seedlings = less than.5 m tall) Slide 7 YES Slide 8 Slide 9 Rock Log (Wood) Slide 10 Slide 11 Slide 12 NO YES Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 BROOKGRASS (Catabrosia aquatica) American Speedwell (Veronica Americana) Slide 18 Block detached from streambank Fracture Slide 19 Active Channel Islands Slide 20