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Lyford Grid maps

• HF-ID: R1977-01
• Category: Research Files
• Creator:
  • Lyford, Walter H.

• Date: 1960-1979
• Location: Prospect Hill Tract (Harvard Forest)
• Media: Paper
• Contents:
  • Folder 1: Original Lyford Grid maps, mapped and measured 1962-1992.
  • SE11, SE21, SE31, SE41, SE51, SE61, SW00, SW01, SW10, SW11, SW20, SW21, SW22, SW30, SW31, SW32, SW33, SW34, SW40, SW41, SW42, SW43, SW44, SW50, SW51, SW51 Detail, SW52, SW53, SW60, SW61, SW62, SW70, SW71.
  
  
  • Folder 2: Original Lyford Grid maps, Experiment 69-1 area.
  • • PH I-VIII Experiment 69-1 area - detailed 1” x 5” (1:60) maps of 100 x 100 ft squares (12 maps, one blank grid sheet, 2 transparencies with grid lines).
  • • Graph of root tray diurnal fluctuations (rough draft, May 1972).
  • • Graph comparing precipitation in Amherst (1836-1960) and Petersham (1916-1960).
  
  
  • Folder 3: Original and photocopies of Lyford Grid maps, NE series.
  • • Original old Woodlot tree maps by Carole Nimick, student assistant and W. H. Lyford Summer 1972 with addition of measurements in August 1979 and September 1992 (6 maps).
  • • Photocopies of old Woodlot tree maps by Carole Nimick, student assistant and W. H. Lyford, Summer 1972 (6 maps)
  • • Soil and stone map, Forest Cottage Small Watershed area (PH I) hand-drawn by Lyford, August 1963.
  • • PH 1992 base map with area of Forest Cottage Gridded Tract outlined and approximate location of exp. 69-1 area noted.
  • • Forest Cottage tract watershed and water table maps (2 maps).
  • • Schwarz tract gridded map with rocks and undefined features noted.
  
  
  • Folder 4: Photocopies of Lyford Grid maps, SE series.
  • • Photocopies of SE11, SE21, SE31, SE41, SE51, SE61 (16.5” x 18”, 3 copies of each, some with additional annotations).
  • • Photocopies of old Woodlot tree maps by Carole Nimick, student assistant and W. H. Lyford Summer 1972 (11” x 12”, 6 maps).
  • • Photocopy of 69-1 area grid cover sheet.
  • • Photocopies of SE11, SE31, SE41, SE51, SE61 (11.5” x 14”).
  • • Taped together photocopies of PH I-VIII and Forest Cottage Areas Slope and Wet Spot Map, Nov 1961.
  • • Photocopies of SE31, SE41, SE51, SE61 with 1991 data (22” x 24”).
  
  
  • Folder 5: Photocopies of Lyford Grid Maps, SW series.
  • • Lyford grid map with points (8.5” x 11”).
  • • Photocopy of PH I-VIII and Forest Cottage Areas Slope and Wet Spot Map, Nov 1961 (16.5” x 18”).
  • • Photocopy of 69-1 area grid cover sheet (16.5” x 18”).
  • • Photocopies of Lyford Grid blocks (16.5” x 18”, number of copies in parentheses): SW51 (3); SW50 (4); SW30 (3); SW20 (3); SW00 (3); SW40 (3); SW10 (3); SW01 (3); SW11 (3); SW21 (3); SW31 (2); SW41 (2); SW22 (3); SW32 (2); SW33 (2); SW34 (3); SW42 (2); SW43 (2); SW44 (3); SW51 detail (3); SW52 (3); SW53 (3); SW60 (3 - one copy with undated measurements); SW61 (3 - one copy with undated measurements); SW62 (3 -one copy with undated measurements); SW70 (3 - one copy with undated measurements); SW71 (3 - one copy with undated measurements).
  • • Photocopies of old Woodlot tree maps by Carole Nimick, student assistant and W. H. Lyford Summer 1972 (10.5” x 12”, 6 maps with Prospect Hill tract overlay).
  • • Photocopies (11.5” x 13” with 1960s and 1970s measurements) of SW00, SW01, SW10, SW11, SW21, SW22, SW31, SW32, SW33, SW34, SW41, SW42, SW43, SW44, SW50, SW51, SW52, SW53, SW60, SW61, SW62, SW70, SW71.
  • • Photocopies (22” x 24” with 1960s and 1970s measurements and 1991 and 1992 measurements for maps SW00 through SW53) of SW00, SW01, SW10 (2 copies), SW11, SW20, SW21, SW22, SW30, SW31, SW32, SW33, SW34, SW40, SW41, SW42, SW43, SW44, SW50, SW51, SW 51 detail, SW52, SW53, SW60, SW61, SW62, SW70, SW71.
  • • Transparent overlay for SW52.
  • • Untitled grid map of fallen trees with tree map overlay.
  
  
  • Other maps:
  • • Lyford Gridded Tract by P. Carolan and H. Kretschmar, August 1992 (36” x 40”).
  • • Soil Moisture transparent overlay with information from Lyfords’s 1969 maps of Prospect Hill I and VIII (36” x 36”).
  • • Lyford Gridded Tract Research Sites by P. Carolan and H. Kretschmar, August 1992 (36” x 46”).

• Keywords: permanent plots, tree maps
• Abstract:
  • Harvard Forest soil scientist Walter Lyford meticulously mapped and measured a 7-acre portion of the woods in the Prospect Hill tract. He included all live and dead trees, stone walls, streams, soil types, boulders, and other features on a series of 32 large-scale maps. Lyford completed the first full tree census in 1969, and re-measured all the trees once before his retirement in 1976.

• Related Items:
  • HF Data Archive: HF032 Lyford Mapped Tree Plot at Harvard Forest since 1969
  • Research file: HF 1976-05 Prospect Hill I-VIII gridded area activities, 1960-1976
  • Research file: HF1987-02 Measurement of Walter Lyford's PH I and VIII Gridded Areas
  • Research file: HF1994-26 Diskette inventory for TS, PH, HF Long Term Studies, LTER documents, GIS maps, Pisgah, and Lyford tree mapping
  • Map: Lyford Grid Map with Points
  • Map: Lyford Grid overlayed onto 1947 Prospect Hill I and VII map
  • Map: Lyford Grid SE11 100x100 ft. block
  • Map: Lyford Grid SE21 200x100 ft. block
  • Map: Lyford Grid SE31 300x100 ft. block
  • Map: Lyford Grid SE41 400x100 ft. block
  • Map: Lyford Grid SE51 500x100 ft. block
  • Map: Lyford Grid SE61 600x100 ft. block
  • Map: Lyford Grid SW00 0x0 ft. block
  • Map: Lyford Grid SW01 0x100 ft. block
  • Map: Lyford Grid SW10 100x0 ft. block
  • Map: Lyford Grid SW11 100x100 ft. block
  • Map: Lyford Grid SW20 200x0 ft. block
  • Map: Lyford Grid SW21 200x100 ft. block
  • Map: Lyford Grid SW22 200x200 ft. block
  • Map: Lyford Grid SW30 300x0 ft. block
  • Map: Lyford Grid SW31 100x300 ft. block
  • Map: Lyford Grid SW32 200x300 ft. block
  • Map: Lyford Grid SW33 300x300 ft. block
  • Map: Lyford Grid SW34 300x400 ft. block
  • Map: Lyford Grid SW40 400x0 ft. block
  • Map: Lyford Grid SW41 100x400 ft. block
  • Map: Lyford Grid SW42 400x200 ft. block
  • Map: Lyford Grid SW43 400x300 ft. block
  • Map: Lyford Grid SW44 400x400 ft. block
  • Map: Lyford Grid SW50 500x0 ft. block
  • Map: Lyford Grid SW51 500x100 ft. block
  • Map: Lyford Grid SW51Detail 500x120 ft. block
  • Map: Lyford Grid SW52 500x200 ft. block
  • Map: Lyford Grid SW53 500x300 ft. block
  • Map: Lyford Grid SW60 600x0 ft. block
  • Map: Lyford Grid SW61 600x100 ft. block
  • Map: Lyford Grid SW62 600x200 ft. block
  • Map: Lyford Grid SW70 700x0 ft. block
  • Map: Lyford Grid SW71 700x100 ft. block

• Archives Location: Map Room, stack 5, drawer 9
• Access: Active
• Administrative Notes:
  • Former title: Grid maps of 100 x 100 foot squares, Prospect Hill I-VIII