2011-07-20_REPORT - M1988044 (2)

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B. Depth of topsoiling - Topsoil depth met or exceeded the minimums required by the plan. C. Final grading of topsoiled lands - One portion of the land that was topsoiled has been final graded. The other small area has yet to receive topsoil and has been left in a rough condition until soil is spread this next autumn or winter. 3. Accommodation for drainage - Drainage in recently completed portions appears to have stabilized. It is beneficial to leave a few small, low spots to introduce some habitat diversity and visual interest. This is an excellent approach to aid in the survival of wildlife. 4. Revegetation - No land was seeded in the last year. 5. Status of Prior Revegetation Areas- A. Status of newest seedings as of report date - No new seedings were done. Therefore, comments on revegetation status is covered in the next section. E. Status of older revegetation as of report date (describe growth rates, cover, invasive species, native invasion, and difficulties) - Older revegetation sites on either side of the main road exhibit similar patterns of development with respect to the year they were planted. Those relationships to the year planted are due to variations in the specific conditions that acted to select certain species. However, it appears that the trends in development on each of these sites are convergent, that is, they are developing along slightly different pathways but species composition appears to be trending toward a common end point with needlegrass, wheatgrass, blue grama dominance qualitatively similar to the undisturbed adjacent vegetation. The two areas on the east side of the main road planted in 2007 have already achieved a high dominance of needlegrass with western wheatgrass becoming co- dominant and blue grama a secondary dominant. Switchgrass has increased considerably in the last year and is locally dominant. Considering the sandy nature of the soil in these two areas, that pattern is according to expectation. The areas planted in 2008 have followed different pathways with the larger revegetation area to the south being most divergent due to the presence of somewhat more clay in the growth medium. Species diversity is highest where there is some clay in the growth medium. Vegetation on more sandy soils develop along pathways similar to the 2007 planted areas. A clear differentiation of dominance appears to have been achieved in the small 2008 planting, but is still somewhat ambiguous in the larger areas. This ambiguity probably has more to do with the much more diverse microhabitats in the larger areas than are present in the smaller areas. A species list follows. Blue grama (co- dominant) Western wheatgrass (co- dominant) Needlegrasses (two species - sometimes dominant, otherwise sub - dominant) Switchgrass (generally a lesser component, but sometimes dominant locally) Hairy golden aster Status report for 2009 due July 15, 2010 Page 7 of 13