Table 4. Result of the 3th round of Delphi technique.

No. Questionnaire items Meana SDa Mode Q1b Q3b QDb Note
(i) Appropriateness as the standard works for estimating restoration deposit
Seed-fertilizer-soil mixed spraying 5.00 0.00 5 5.00 5.00 0.00 Existing
Tree planting 5.00 0.00 5 5.00 5.00 0.00 Existing
Cutting 4.93 0.26 5 5.00 5.00 0.00 New
Seeding 4.86 0.52 5 5.00 5.00 0.00 Existing
Filling 4.71 0.45 5 4.30 5.00 0.38 New
Soil covering on terrace 4.64 0.61 5 4.30 5.00 0.38 New
Vegetation sack stacking 4.57 0.50 5 4.00 5.00 0.50 New
Concrete channel 4.57 0.50 5 4.00 5.00 0.50 New
Slope mulching 4.50 0.50 5 4.00 5.00 0.50 New
Remained cut-wall slope grading 4.43 0.62 5 4.00 5.00 0.50 Existing
Terrace sodding 4.43 0.50 4 4.00 5.00 0.50 Existing
Sod channel 4.36 0.61 4 4.00 5.00 0.50 Existing
Sod planting 4.36 0.48 4 4.00 5.00 0.50 Existing
Stone channel 4.29 0.59 4 4.00 5.00 0.50 Existing
Carrying sediment 4.29 0.45 4 4.00 4.80 0.38 New
Stone masonry on hillside 4.21 0.56 4 4.00 4.80 0.38 Existing
Sediment retarding basin 4.21 0.41 4 4.00 4.00 0.00 New
Rill control by stone 4.14 0.52 4 4.00 4.00 0.00 Existing
Boulder stacking 4.14 0.64 4 4.00 4.80 0.38 New
Underground laying structure 4.07 0.46 4 4.00 4.00 0.00 Existing
Rill control by sod 4.07 0.46 4 4.00 4.00 0.00 Existing
Water collecting well 4.07 0.59 4 4.00 4.00 0.00 New
(ii) Appropriateness as the additional works for estimating restoration deposit
Erosion control dam 4.43 0.50 4 4.00 5.00 0.50 New
Check dam 4.29 0.45 4 4.00 4.80 0.38 Existing
Planting vines 4.21 0.41 4 4.00 4.00 0.00 New
Retaining wall 4.14 0.74 4 4.00 5.00 0.50 Existing
Screen planting 4.14 0.35 4 4.00 4.00 0.00 New
Demolishing facilities 4.07 0.80 5 3.30 5.00 0.88 New
Bringing sediment 4.07 0.46 4 4.00 4.00 0.00 New
The mean, standard deviation (SD), and mode were derived from 5-point Likert scale responses by experts. If the mean is greater (or smaller) than 3.00, it means to affirm (or deny) for the questionnaire item.
The quartile deviation (QD) was obtained by dividing the difference between the 1st (Q1) and 3rd (Q3) quartiles by 2. If the QD is smaller (or greater) than 1.00, it means that it has agreed (or has not agreed) to affirm or deny the questionnaire items.