Installation costs and management labor for each restoration site. Planning and preparation include field surveys, restoration design, securing materials, scheduling contractors and other related project management activities. Landform and soil preparation include heavy equipment contractors, soil, delivery, and labor required to prepare soil for seeding and planting. Plant materials include plants, seeds, and prevegetated mats. Erosion control materials include erosion control blankets, coconut biologs, brush bundles, and temporary fencing. Management hours include site surveillance, management, irrigation, herbicide, and equipment rental necessary for treatments. Hours/area/year is adjusted for number of years post-restoration (see Figure 1). Linear and areal dimensions for each site are also presented in Figure 1.
Sites | |||||||||
---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | I | |
Total Cost (USD x 1000) | 60.2 | 152.6 | 316.9 | 110.7 | 206.3 | 138.5 | 281.7 | 286.5 | 131.1 |
USD linear m−1 | 563 | 655 | 672 | 683 | 790 | 567 | 673 | 507 | 461 |
USD m−2 | 63 | 109 | 61 | 49 | 113 | 96 | 112 | 102 | 66 |
Installation Components (USD x 1000) | |||||||||
Planning & preparation | 7.7 | 15.4 | 16.5 | 10.8 | 17.5 | 17.3 | 20.1 | 23.3 | 17.0 |
Landform & soil preparation | 12.3 | 46.5 | 61.1 | 28.9 | 39.4 | 37.6 | 68.7 | 82.4 | 30.8 |
Plant materials | 33.1 | 44.2 | 200.7 | 57.8 | 96.5 | 27.4 | 96.2 | 70.7 | 43.5 |
Erosion control materials | 7.2 | 46.4 | 38.6 | 13.2 | 52.9 | 55.9 | 96.8 | 110.2 | 39.9 |
Management—Total hours | 343 | 549 | 1438 | 551 | 783 | 639 | 1022 | 825 | 405 |
Hours m−2 | 0.36 | 0.39 | 2.85 | 0.24 | 0.42 | 1.17 | 0.40 | 0.27 | 0.06 |
Hours m−2 yr−1 | 0.02 | 0.03 | 0.17 | 0.01 | 0.02 | 0.06 | 0.02 | 0.02 | <0.01 |