| 词条 | Keeley Creek Natural Area |
| 释义 |
| name = Keeley Creek Natural Area | alt_name = | iucn_category = | photo = | photo_alt = | photo_caption = | photo_width = | map = | map_alt = | map_caption = | map_width = | location = Lake County, Minnesota | nearest_city = | coordinates = {{Coord|47|47|23.5|N|91|42|22.52|W|type:landmark|display=inline,title}} | coords_ref = | area = {{convert|1180|acre|km2}} | established = 1942 | visitation_num = | visitation_year = | governing_body = | url = | embedded = {{designation list | embed = yes | designation1 = NNL | designation1_date = 1980 }}Keeley Creek Natural Area is a Research Natural Area and a National Natural Landmark that is protected by the United States Department of Agriculture, specifically through the branch of the Forest Service. It is located in Stony River Township, in Lake County, Minnesota, and is part of the Superior National Forest.[1] History of Keeley Creek Natural AreaIn 1942, {{Convert|640|acre|km2|adj=mid}} of land was designated a Research Natural Area. The National Park Service describes the area as "a large tract of undisturbed mixed pine and black spruce forest with rare mature jackpine stands and significant upland bogs".[2] In February 1980, the United States Secretary of the Interior designated a {{Convert|1180|acre|km2|adj=mid}} area, including Keeley Creek Natural Area, as a National Natural Landmark under the Historic Sites Act.[3][4] This designation recognizes the area as an outstanding example of the United States' natural history.[5] EcologyKeeley Creek is a forested area that consists mainly of native fir trees including mostly Jackpine and Black Spruce.[6] White-tailed deer, snowshoe rabbit, and ruffed grouse are common in the area. In the 21st century, the make-up of the Keeley Creek is changing due to fire suppression. Fire benefits Jack pines and black spruce by causing germination of their seeds and by clearing the forest canopy, allowing more direct sunlight for young trees. Without fire, jack pines and spruce can be overtaken by more shade-tolerant plants.[7] References1. ^{{Cite web|url=https://www.nrs.fs.fed.us/rna/established/|title=Established Research Natural Areas of Northern Research Station and Eastern Region - USDA Forest Service|website=www.nrs.fs.fed.us|access-date=2017-10-03}} {{National Natural Landmarks in Minnesota}}{{Protected Areas of Minnesota}}{{LakeCountyMN-geo-stub}}2. ^{{Cite web|url=https://www.nps.gov/subjects/nnlandmarks/site.htm?Site=KECR-MN|title=Keeley Creek Natural Area|last=|first=|date=|website=www.nps.gov|language=en|archive-url=|archive-date=|dead-url=|access-date=2017-10-03}} 3. ^{{cite news |url=https://www.newspapers.com/clip/14157456/mn_natural_landmarks/ |title=4 state areas named Natural Landmarks |last=McConagha |first=Al |work=Star Tribune |date=March 18, 1980 |df=mdy-all |page=22}} 4. ^{{cite web|url=http://www.publicrecordmedia.org/wp-content/uploads/2013/12/4/NMet_PSDEISV2_Track%20Changes_DRAFT%20Chapt04.02.12_Wilderness.pdf|title=Preliminary supplemental draft environmental impact statement (PSDEIS). Established and candidate research natural areas.|last=|first=|date=|work=www.publicrecordmedia.org|publisher=NorthMet Mining Project and Land Exchange|page=4-322}} 5. ^{{cite web|url=http://www.nature.nps.gov/nnl/|title=Overview, National Natural Landmarks|work=Nature & Science|publisher=National Park Service|accessdate=2007-12-17}} 6. ^{{cite web | title = Keeley Creek subpage | publisher = U. S. Forest Service | url = http://nrs.fs.fed.us/rna/mn/superior/keeley-creek/ | accessdate = 2007-12-17}} 7. ^{{cite book|last1=Ney|first1=Jason|last2=Nichols|first2=Terri|title=America's Natural Places: The Midwest|date=November 25, 2009|publisher=ABC-CLIO|isbn=978-0-313-35317-8|pages=105–107}} 4 : Protected areas of Lake County, Minnesota|Wilderness Areas of Minnesota|National Natural Landmarks in Minnesota|Superior National Forest |
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