REP34971 - Laserfiche WebLink

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1 1 1 C~ 1 LJ 1 LJ Microbial Status Study -Final Report number of segments analyzed (15) to get a percentage of mycorrhizal colonization. There were three samples taken for each species and area. RESULTS Results from the mycorrhizal fungal survey aze presented in Tables 1 and 2 and Figure I . Not all sites were sampled but the ones that were aze considered under typical management schemes for these respective areas at the Seneca 1[ Mine. The oaks transplanted in 94 were 33 percent colonized (except for one group of samples). Those oaks transplanted in 95 were 67 percent colonized (Table 1). The results varied widely within the two endomycorrhizal associated species. Probably the most notable observation made about the chokecherry and serviceberry was the decrease in colonization observed between years 93 and 94 at the Ml site and for the chokecherry at the M2 site (Table 2 and Figure 1). The other striking observation was the 60 percent colonization in chokecherry at the M2 site and the general increase in colonization at the M2 site when compazed to the other sites analyzed (Table 2 and Figure 1). DISCUSSION AND RECOMMENDATIONS We did not sample from a1195 sites for feaz of disturbing what was essentially newly treated soil. In addition the sites were experiencing some erosion and we felt we would compound this problem by walking all over them. In retrospective after having analyzed the data 1 feel that samples may need to be taken from the 95 M2 and M3 sites to compare against the 93 and 94 samplings. We attempted to sample the 93-M3 site but the conditions (snow cover, along with grass about chest high) on this particular site made it extremely difficult to find any plants. The decrease in ectomycorrhizal colonization with time as observed in the oaks can be due to a number of f"'