Ecological Archives A022-005-A2

Brian M. Brost and Paul Beier. 2012. Use of land facets to design linkages for climate change. Ecological Applications 22:87–103.

Appendix B. Topographic attributes of land facets, as well as location and number of land facets relative to topographic complexity of the three landscapes.

TABLE B1. Mean and range of topographic attributes of each land facet in each planning area. Although land facets overlapped in range of elevation, slope angle, and solar insolation, their joint distributions did not (Fig. 6). “Hot,” warm,” and “cool” refer to relative amounts of insolation.

Planning
area
Land facet
description
Mean elevation
(m) (range)
Mean slope
(°) (range)
Mean insolation
(kWh-1) (range)
Santa Rita
-
Tumacacori
Canyon bottom:
low elevation, gentle
1216.7
(1059.6, 1401.1)
8.5
(0.0, 18.0)
--
Canyon bottom:
mid elevation, gentle
1540.4
(1375.4, 1828.4)
11.4
(1.3, 19.7)
--
Canyon bottom:
mid elevation, steep
1354.6
(1096.6, 1551.2)
23.6
(16.2, 36.1)
--
Canyon bottom:
high elevation, steep
1753.0
(1563.0, 2158.5)
25.4
(13.8, 36.1)
--
Ridge:
low elevation, gentle
1257.5
(1104.1, 1449.0)
9.8
(0.1, 20.1)
--
Ridge:
mid elevation, gentle
1597.2
(1425.2, 1946.7)
12.5
(0.7, 21.2)
--
Ridge:
mid elevation, steep
1424.8
(1156.1, 1635.7)
26.2
(18.2, 39.5)
--
Ridge:
high elevation, steep
1859.6
(1662.7, 2248.2)
26.4
(14.3, 37.4)
--
Slope:
low elevation, gentle, warm
1180.9
(1031.7, 1449.3)
6.2
(0.0, 20.8)
1638.5
(1435.9, 1777.6)
Slope:
mid elevation, steep, cool
1370.8
(1072.7, 1953.5)
22.5
(12.7, 36.9)
1384.9
(1015.7, 1556.5)
Slope:
mid elevation, steep, hot
1449.7
(1131.5, 1933.0)
22.0
(13.3, 36.0)
1708.2
(1527.7, 1875.1)
Slope:
high elevation, gentle, hot
1583.9
(1390.9, 1954.2)
7.7
(0.0, 19.4)
1726.9
(1501.9, 1893.4)
Black Hills
-
Munds Mountain
Canyon bottom:
low elevation, gentle
1314.3
(1049.9, 1603.6)
9.8
(0.0, 21.1)
--
Canyon bottom:
mid elevation, steep
1540.6
(1168.0, 1938.0)
27.8
(17.9, 43.6)
--
Canyon bottom:
high, elevation, gentle
1829.2
(1544.7, 2090.9)
14.6
(2.3, 28.5)
--
Ridge:
low elevation, gentle
1366.3
(1103.4, 1646.8)
10.6
(0.0, 23.4)
--
Ridge:
mid elevation, steep
1635.6
(1199.1, 2044.8)
29.9
(19.0, 49.2)
--
Ridge:
high elevation, gentle
1922.4
(1625.4, 2326.3)
13.1
(1.0, 27.3)
--
Slope:
low elevation, gentle, warm
1188.5
(1047.1, 1529.4)
4.8
(0.0, 16.5)
1561.5
(1411.7, 1671.4)
Slope:
low elevation, steep, cool
1387.2
(1067.2, 2056.3)
18.2
(10.2, 35.9)
1381.4
(987.6, 1552.0)
Slope:
mid elevation, gentle, warm
1518.2
(1300.1, 1822.9)
4.8
(0.0, 11.7)
1642.3
(1494.1, 1750.5)
Slope:
mid elevation, steep, warm
1586.0
(1111.3, 2103.9)
18.1
(11.1, 35.6)
1678.7
(1492.1, 1867.0)
Slope:
high elevation, gentle, hot
1986.5
(1690.3, 2384.3)
4.7
(0.0, 15.9)
1729.7
(1546.2, 1886.8)
Wickenburg
-
Hassayampa
Canyon bottom:
low elevation, gentle
785.9
(452.0, 1284.0)
8.5
(0.0, 16.5)
--
Canyon bottom:
low elevation, steep
909.1
(493.0, 1244.0)
22.7
(14.9, 35.5)
--
Canyon bottom:
high elevation, steep
1435.2
(1137.0, 1865.0)
18.3
(4.4, 32.6)
--
Ridge:
low elevation, gentle
827.8
(497.0, 1337.0)
10.4
(0.8, 18.3)
--
Ridge:
low elevation, steep
932.7
(511.0, 1362.0)
25.4
(17.7, 36.7)
--
Ridge:
high elevation, steep
1514.7
(1170.0, 2019.0)
19.1
(5.4, 33.1)
--
Slope:
low elevation, gentle, warm
588.5
(353.0, 974.0)
1.7
(0.0, 16.2)
1500.9
(1381.8, 1581.5)
Slope:
mid elevation, steep, cool
800.8
(419.0, 1713.0)
15.9
(6.9, 31.9)
1363.5
(1020.7, 1517.8)
Slope:
high elevation, steep, warm
1028.4
(488.0, 1995.0)
10.9
(0.0, 33.3)
1587.4
(1445.2, 1856.3)



FIG. B1. Univariate distributions demonstrating the topographic complexity of cells in each topographic position for the three landscapes. Points indicate location of cluster centroids, and symbols differentiate between clusters within the same topographic position and landscape. The main pattern is that there were more land facets within a topographic position in more complex landscapes. For example, cells in the slope topographic position of the Wickenburg-Hassayampa planning area, which were only classified into three land facets, were narrowly distributed with respect to elevation, slope angle, and insolation (bottom row). Conversely, cells in the slope topographic position of the Black Hills-Munds Mountain planning area, which were classified into five land facets, had a multi-modal distribution with respect to elevation and a wider distribution with respect to slope angle and insolation.


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