1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)
-
Upload
barrie-craig -
Category
Documents
-
view
215 -
download
0
Transcript of 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)
![Page 1: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/1.jpg)
1972 – 2001 1972 – 2001 Landscape Dynamics Landscape Dynamics
WisconsinWisconsin
38858.13ha (96020.19ac)
![Page 2: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/2.jpg)
1972 19781982
19871992 2001
Landscape Dynamics of the Landscape Dynamics of the Washburn District, N. Wisc.Washburn District, N. Wisc.
![Page 3: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/3.jpg)
Ownership and LandscapesOwnership and Landscapes
•The number of family forest owners in the conterminous US increased from 9.3 million in 1993 to 10.3 million in 2003,
•and these owners now control 42% of the nation’s forest land
Butler and Leatherberry 2004J. For. 102(7): 4-9
![Page 4: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/4.jpg)
Lots of Indian ReservationsLess private
![Page 5: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/5.jpg)
Public lands in high elevationSmall portion of state lands
![Page 6: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/6.jpg)
![Page 7: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/7.jpg)
Case Study I
Landscapes in Central OregonLandscapes in Central OregonSpies et al. 1994.
Study objectives: landscape, change, and ownership effects in W. Cascades, 158,930 ha)
![Page 8: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/8.jpg)
•Landsat images from 1972, 1976, 1981, 1984, and 1988;•By ownership, elevation;•Harvesting effects;•Only two cover types (black & white);•91% accuracy (this is high).
![Page 9: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/9.jpg)
![Page 10: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/10.jpg)
Linear
Interior <10%
![Page 11: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/11.jpg)
More smaller patches in 1988
Less large patches
![Page 12: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/12.jpg)
![Page 13: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/13.jpg)
Changes in sub-landscapes
92%
10%
84%
65%
![Page 14: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/14.jpg)
Nucleation change
![Page 15: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/15.jpg)
High
Low
Low
![Page 16: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/16.jpg)
Take Home MessagesTake Home Messages
•Conifer forest declined (71-58%); Greater at private lands.
•AEI increased and interior decreased, but depending on ownership.
•The annual rate was about 1.19%.
•Large forest patches are emerging (why?).
•Different management options for different owners.
![Page 17: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/17.jpg)
Case Study IILandscapes in Northern WisconsinLandscapes in Northern Wisconsin
Crow et al. 1999
Study Objectives: to partition the sources of variation in the composition and structure of a landscape as related to the physical environment and land use as affected by ownership.
Sample plots(16 from 20)
![Page 18: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/18.jpg)
![Page 19: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/19.jpg)
Photo interpretation
•1:15840 B/W or 1:1200 natural color (1993)•Transferred to 1:2400 USGS topo maps•Digitized into PC ARCINFO GIS
The entire land area shares a common land-use history. In the late 1800s and early 1900s, intensive logging occurred throughout NW WI. However, the most prevalent process in the study area was reforested.
![Page 20: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/20.jpg)
![Page 21: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/21.jpg)
•95% of public forest on outwash and 64% on moraine;
•No difference for private forest (i.e., 65%);
•Large lands surrounding lakes are private;
•More wetlands on moraine;
•Privates owns more agricultural lands.
![Page 22: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/22.jpg)
•More even distribution among the classes of upland forest is evident for private land on outwash;
•Less regenerating forests on private lands;
•Smaller patches for mixed forests;
![Page 23: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/23.jpg)
Landscape StructureLandscape Structure
Outwash:Smaller patches on private lands;But more fragmented;
![Page 24: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/24.jpg)
Landscape Structure: landform effectsLandscape Structure: landform effects
Different
Not Different
![Page 25: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/25.jpg)
Large
Small
![Page 26: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/26.jpg)
![Page 27: 1972 – 2001 Landscape Dynamics Wisconsin 38858.13ha (96020.19ac)](https://reader036.fdocuments.us/reader036/viewer/2022062423/5697bfd91a28abf838caf842/html5/thumbnails/27.jpg)
ConclusionsConclusions
•Complex interactions between landform and ownership;
•What differences, in terms of ecological consequences, can landscape (composition and structure) produce?
•Different management scenarios?
•Anything else?