Browsing by Subject "trees"

Now showing 1 - 9 of 9
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    Educational needs assessment of tree and woodland programs in Minnesota: results from a 2020 study
    (2021-02) University of Minnesota Extension Forestry
    The interests of current and potential participants are essential in determining which educational programs are offered by outreach and Extension organizations. In October 2020, the University of Minnesota Extension Forestry team gathered responses to an educational program needs assessment survey, receiving a total of 314 respondents. The most popular topics identified in the survey were woodland management, wildlife, and tree and plant identification. Not surprisingly, respondents preferred virtual learning formats during the COVID-19 pandemic. When asked about learning preferences after COVID-19 pandemic ends, the most preferred class format was a field day. These findings will inform future tree and woodland educational programs in Minnesota. The survey also revealed opportunities for new programs focused around topics such as managing woodlands for wildlife, the history of Minnesota forests, and the impacts of climate change to Minnesota forests.
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    Library Resources for Owners of Minnesota’s Private Woodlands
    (1991) Sandy, John H
    This publication describes the search process for finding information. A table shows the number of research papers published about common trees found in Minnesota forests. Guides users to major forestry collections in Minnesota. In addition, presents a bibliography of major forestry reference sources and lists books and other resources which are of high value for owners of private woodlands.
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    Minnesota Trees
    (University of Minnesota. Minnesota Extension Service, 2006) Rathke, David M.
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    Minnesota Trees
    (St. Paul, MN: University of Minnesota Extension Service, 1995) Rathke, David M.
    "Identifies over 100 native and introduced trees found in Minnesota. Includes detailed descriptions and illustrations for identifying trees year-round. Provides step-by-step identification keys and short-cut guides, interesting information on each tree, and projects to help users to enjoy learning about trees. An excellent reference source for homeowners, woodland owners, teachers, 4-H youth, nature lovers, and outdoor enthusiasts."(University of Minnesota Extension website)
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    Native Trees for Landscape Use
    (St. Paul, MN: University of Minnesota Extension Service, 1998) Brown, Deborah L.; Eisel, Mervin C.
    Explains how and where to plant trees; lists trees found in Minnesota, their average height, and general descriptors.
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    Native Trees for Landscape Use
    (St. Paul, MN: University of Minnesota Extension Service, 1998) Brown, Deborah L.; Eisel, Mervin C.
    Discusses how to select, place, and care for native trees in landscape designs. Lists nearly fifty types of native trees.
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    Tree species effects on decomposition and forest floor dynamics in a common garden
    (Ecological Society of America, 2006) Hobbie, Sarah E; Reich, Peter B; Oleksyn, Jacek; Ogdahl, Megan; Zytkowiak, Roma; Hale, Cynthia; Karolewski, Piotr
    We studied the effects of tree species on leaf litter decomposition and forest floor dynamics in a common garden experiment of 14 tree species (Abies alba, Acer platanoides, Acer pseudoplatanus, Betula pendula, Carpinus betulus, Fagus sylvatica, Larix decidua, Picea abies, Pinus nigra, Pinus sylvestris, Pseudotsuga menziesii, Quercus robur, Quercus rubra, and Tilia cordata) in southwestern Poland. We used three simultaneous litter bag experiments to tease apart species effects on decomposition via leaf litter chemistry vs. effects on the decomposition environment. Decomposition rates of litter in its plot of origin were negatively correlated with litter lignin and positively correlated with mean annual soil temperature (MATsoil) across species. Likewise, decomposition of a common litter type across all plots was positively associated with MATsoil, and decomposition of litter from all plots in a common plot was negatively related to litter lignin but positively related to litter Ca. Taken together, these results indicate that tree species influenced microbial decomposition primarily via differences in litter lignin (and secondarily, via differences in litter Ca), with high-lignin (and low-Ca) species decomposing most slowly, and by affecting MATsoil, with warmer plots exhibiting more rapid decomposition. In addition to litter bag experiments, we examined forest floor dynamics in each plot by mass balance, since earthworms were a known component of these forest stands and their access to litter in litter bags was limited. Forest floor removal rates estimated from mass balance were positively related to leaf litter Ca (and unrelated to decay rates obtained using litter bags). Litter Ca, in turn, was positively related to the abundance of earthworms, particularly Lumbricus terrestris. Thus, while species influence microbially mediated decomposition primarily through differences in litter lignin, differences among species in litter Ca are most important in determining species effects on forest floor leaf litter dynamics among these 14 tree species, apparently because of the influence of litter Ca on earthworm activity. The overall influence of these tree species on leaf litter decomposition via effects on both microbial and faunal processing will only become clear when we can quantify the decay dynamics of litter that is translocated belowground by earthworms.
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    Trees and Minnesota Law: A Layperson's Guide
    (University of Minnesota Extension, 2008) Stromme, Lorrie
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    Treetop: 4-H Forest Resources Beginner Guide
    (St. Paul, MN: University of Minnesota Extension Service, 1994) Kroll, Mary
    "Introduces young children to basic forestry and ecology concepts through many activities and illustrations. Includes ideas for science and county fair projects, 'KidsCards' to cut out and use to help identify trees, and a foldout forest to cut out, color, and build. (First in a series of 4-H forestry manuals, followed by Trees + Me = Forestry for 9-to 12-year-olds, and Forests Forever, for ages 12 and up.) For ages 6 to 9."(University of Minnesota Extension website)