ATTACHMENT A LAND USE · 2018. 5. 15. · Category A2 land is assigned a land use score of 75 (halfway between categories A1 and B1). Category C1 and C2 land are both assigned a score

ATTACHMENT A

LAND USE

ALUM Categories1 and Semi Detailed Mapping2

1. Australian Land Use and Management Classification – Version 7

Source DAFWA, November 2015.

2. Index to Semi-detailed (approx 1: 150, 000 scale) Land Use mapping

NW Sheet

SW Sheet

E Sheet

!

SFIS Boundary

Public Land

Irrigated Annual HorticultureIrrigated PastureIrrigated Perennial HorticultureIrrigated Plantation Forestry

Non-irrigated Plantation ForestryNon-irrigated Grazing PastureNature ConservationRemnant VegetationOther

´ 0 5 10km

(Crown land, State Forest etc)

!

´ 0 5 10km

SFIS Boundary

Public Land




SFIS Boundary

Public Land



´ 0 5 10km


ATTACHMENT B

CAPABILITY RATING TABLES

AND ASSESSMENT RESULTS

Land Capability Rating Table for Irrigated Perennial Horticulture

Source: DAFWA (van Gool et al 2005)

Land Capability Rating Table for Irrigated Annual Horticulture

Source: DAFWA (van Gool et al 2005)

Land Capability Rating Table for Irrigated Pastures

Source: DAFWA (Tille et al 2013)

TABLE B1: CAPABILITY ASSESSMENT RESULTS1

IRRIGATED PERENNIAL HORTICULTURE

IRRIGATED ANNUAL HORTICULTURE

IRRIGATED PASTURES

MU_SYMBOL Proportional capability2 Proportional capability2 Proportional capability2

254WvYE1 A2 B1 A1

254MpMT A2 B1 A2

254PpMT A2 B1 A2

254PpCO A2 B1 A2

254MpCO A2 B1 A2

254PvCRy A2 B1 A2

254MpBE A2 B1 A2

254PpBE A2 B1 A2

254DwCRy A2 B1 A2

254PvCRd A1 B1 A2

254WvWH A2 B2 A2

254PvCRb A2 B1 A2

254DwCRb A2 B1 A2

254DwBE A2 B1 A2

255LvBLf A2 B2 A2

254DwCL A2 B1 A2

254DwPM A2 B2 A2

254PvPM A2 B2 A2

254WvYEf B2 B1 A2

254DwWH A2 B2 A2

254MpYN A2 B2 A2

254MpCL B2 B2 B1

254DwYN A2 B2 B1

254PpCL B2 B2 B1

254MpCB B1 B1 B1

254PvYN B1 B2 B1

254PpCB B1 B1 B1

255LvGR A2 B2 B1

254MpTP B1 B1 B1

254MpCC B1 B2 B1

255LvBL3 B1 C1 B1

254PpCC B1 B2 B1

254WvST A2 B2 B1

254PvWH B1 C1 B1

254MpQP B1 B2 B1

254PvAN C1 B1 B1

255LvHR B2 C1 B1

254WvWL B2 C1 B1

254PvQT B2 B2 B1

255LvBLu B2 C1 B2

254PvLF B2 C1 B2

IRRIGATED PERENNIAL HORTICULTURE

IRRIGATED ANNUAL HORTICULTURE

IRRIGATED PASTURES

MU_SYMBOL Proportional capability2 Proportional capability2 Proportional capability2

254PpYR C2 C1 B2

254DwLF B2 C1 B2

254WvYE2 B2 C1 B2

254MpCT C1 B2 B2

254MpYR C1 C1 B2

254PvWA C1 C2 C1

254MpKP C2 C2 C1

254PvQA C1 B2 B2

255LvBL4 C1 C2 C1

1 Source: DAFWA Soil-Landscape Mapping - Map Unit Database

2 PROPORTIONAL CAPABILITY CODES

Category A land: Generally high capability

Category B land: Generally fair or moderate capability.

Category C land: Generally low capability

ATTACHMENT C

PROCESS FOR IDENTIFYING LAND WITH CAPABILITY

FOR IRRIGATED AGRICULTURE.

(based on DAFWA approach for Mid-West Region – Tille et al 2013)

Introduction

As shown in the colour coded spreadsheet at the end of this attachment, the land capability ratings

for the three broad land uses (irrigated perennial horticulture, irrigated annual horticulture and

irrigated pastures) are transformed into a single value reflecting the potential of each soil-landscape

mapping unit for irrigated agriculture using the following method;

Step 1

The proportional capability categories for each land use are converted to a land use score out of 100

(Table C1). Category A1 land is assigned the maximum score of 100. Category B1 land is assigned a

score of 50 out of 100 because of likely development/ongoing management costs or lower potential

yields. Category A2 land is assigned a land use score of 75 (halfway between categories A1 and B1).

Category C1 and C2 land are both assigned a score of zero as it is assumed that the production

potential resulting from necessary land management inputs would not justify the cost of

development.

Table C1: Conversion of proportional capability category to score

Capability Category Land Use Score

A1 100

A2 75

B1 50

B2 25

C1 0

C2 0

Step 2

Each land use is then assigned a weighting to reflect its perceived importance in the

Study area (Table C2). The land use weightings are based on the relative current extent of the land

use as shown in the report (Figure 2 and Table 1). They are expressed as a percentage and add up to

100 per cent.

Table C2: Irrigated agriculture land use weightings

Irrigated Land Use Area within Existing Total Irrigated Land (5,711 ha)

Land Use Weighting*

Irrigated Perennial Horticulture 3,904 ha (68%) 0.68

Irrigated Annual Horticulture 848 ha (15 %) 0.16

Irrigated Pasture 770 ha (14 %) 0.16

Minor Others (Irrigated cropping and irrigated plantations)

189 ha (3 %)

* Weightings are for main land use categories and are rounded upwards to account for ’other’

irrigated land uses.

Step 3

For each soil-landscape map unit, the land use weightings (Table C2) are then multiplied by the land use scores (Table C1) to achieve a weighted score for each land use. The individual weighted scores are then summed to determine the overall irrigated agriculture score for the map unit (see attached coloured spreadsheet).

Step 4

The irrigated agriculture scores are then transformed into categories, as shown in Table C3.

The boundaries between the categories created by groupings of the cumulative irrigated agriculture

scores are based on statistical analysis of the scores into natural groupings (see overleaf). The

categories are similar to those used by DAFWA in its analysis of high quality irrigated agricultural

land for the Mid-West Region (Tille et al 2013).

Table C3. Irrigated land categories

Cumulative Irrigated Agriculture Score Category

61 - 100 Very High

40 - 60 High

20 - 39 Moderate

1 - 19 Low

< 1 Very Low

The cumulative irrigated agriculture scores incorporate the concept of flexibility, with land that has

the capacity to support a wide range of crops achieving the highest score. Although the maximum

possible irrigated agriculture score is 100, the score should not be thought of as a percentage, with a

score of 50 representing a ‘pass mark’.

Land with a score in the range of 20 – 50 is still able to be irrigated (irrigable land). For example, it

could have high capability for perennial horticultural crops but with limitations for annual

horticultural crops, and hence is still productive but not as versatile.

The overall land capability categories for irrigated agriculture for each map unit are presented

spatially in the report as Figure 6. They illustrate potential for irrigated agriculture, assuming no

other constraints such as inappropriate zoning and that adequate water supplies are made available

through the proposed scheme.

Histogram showing natural grouping of Cumulative Irrigated Agriculture Scores

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254DwYN A2 75 0.68 51 B2 25 0.16 4 B1 50 0.16 8 63 Very High 1762

254WvST A2 75 0.68 51 B2 25 0.16 4 B1 50 0.16 8 63 Very High 576

255LvGR A2 75 0.68 51 B2 25 0.16 4 B1 50 0.16 8 63 Very High 433

254PvPM A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 7479

254DwPM A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 2875

254WvWH A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 439

255LvBLf A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 79

254DwWH A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 3766

254MpYN A2 75 0.68 51 B2 25 0.16 4 A2 75 0.16 12 67 Very High 3149

254PvCRy A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 6876

254DwCRb A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 385

254DwCRy A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 2068

254DwBE A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 4846

254PvCRb A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 3259

254MpBE A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 5923

254PpBE A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 784

254PpCO A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 61

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254MpCO A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 1793

254MpMT A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 348

254DwCL A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 281

254PpMT A2 75 0.68 51 B1 50 0.16 8 A2 75 0.16 12 71 Very High 24

254WvYE1 A2 75 0.68 51 B1 50 0.16 8 A1 100 0.16 16 75 Very High 1535

254PvCRd A1 100 0.68 68 B1 50 0.16 8 A2 75 0.16 12 88 Very High 123

Total 'Very High' 48,864

254PvWH B1 50 0.68 34 C1 0 0.16 0 B1 50 0.16 8 42 High 2330

255LvBL3 B1 50 0.68 34 C1 0 0.16 0 B1 50 0.16 8 42 High 71

254PvYN B1 50 0.68 34 B2 25 0.16 4 B1 50 0.16 8 46 High 577

254MpQP B1 50 0.68 34 B2 25 0.16 4 B1 50 0.16 8 46 High 37

254MpCC B1 50 0.68 34 B2 25 0.16 4 B1 50 0.16 8 46 High 551

254PpCC B1 50 0.68 34 B2 25 0.16 4 B1 50 0.16 8 46 High 493

254MpTP B1 50 0.68 34 B1 50 0.16 8 B1 50 0.16 8 50 High 27

254PpCB B1 50 0.68 34 B1 50 0.16 8 B1 50 0.16 8 50 High 240

254MpCB B1 50 0.68 34 B1 50 0.16 8 B1 50 0.16 8 50 High 63

Total 'High'

4,388

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254PvLF B2 25 0.68 17 C1 0 0.16 0 B2 25 0.16 4 21 Moderate 2477

255LvBLu B2 25 0.68 17 C1 0 0.16 0 B2 25 0.16 4 21 Moderate 32

254DwLF B2 25 0.68 17 C1 0 0.16 0 B2 25 0.16 4 21 Moderate 154

254WvYE2 B2 25 0.68 17 C1 0 0.16 0 B2 25 0.16 4 21 Moderate 319

254WvWL B2 25 0.68 17 C1 0 0.16 0 B1 50 0.16 8 25 Moderate 2795

255LvHR B2 25 0.68 17 C1 0 0.16 0 B1 50 0.16 8 25 Moderate 58

254PvQT B2 25 0.68 17 B2 25 0.16 4 B1 50 0.16 8 29 Moderate 3

254MpCL B2 25 0.68 17 B2 25 0.16 4 B1 50 0.16 8 29 Moderate 4519

254PpCL B2 25 0.68 17 B2 25 0.16 4 B1 50 0.16 8 29 Moderate 347

254WvYEf B2 25 0.68 17 B1 50 0.16 8 A2 75 0.16 12 37 Moderate 380

Total 'Moderate' 11,085

254MpYR C1 0 0.68 0 C1 0 0.16 0 B2 25 0.16 4 4 Low 6149

254PpYR C2 0 0.68 0 C1 0 0.16 0 B2 25 0.16 4 4 Low 307

254MpCT C1 0 0.68 0 B2 25 0.16 4 B2 25 0.16 4 8 Low 105

254PvAN C1 0 0.68 0 B1 50 0.16 8 B1 50 0.16 8 16 Low 22

254PvQA C1 0 0.68 0 B2 25 0.16 4 B2 25 0.16 4 8 Low < 1

Total ' Low'

6,583

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255LvBL4 C1 0 0.68 0 C2 0 0.16 0 C1 0 0.16 0 0 Very Low 261

254PvWA C1 0 0.68 0 C2 0 0.16 0 C1 0 0.16 0 0 Very Low 689

254MpKP C2 0 0.68 0 C2 0 0.16 0 C1 0 0.16 0 0 Very Low 684

Total 'Very Low' 1,633

Private Land 72,552

Public Land 44,338

Total 116,890

ATTACHMENT D

IRRIGATED AGRICULTURE CAPABILITY

SEMI-DETAILED MAPPING ENLARGEMENTS

NW Sheet

SW Sheet

E Sheet

!Manjimup

´ 0 5 10km

Attachment D: NW SheetArea of Interest

SFIS BoundaryExcluded Lands

Public Land

Land CapabilityVery HighHighModerate

LowVery Low

(water supply not considered)


!Manjimup

´ 0 5 10km

Attachment D: SW SheetArea of Interest


Public Land


LowVery Low



´ 0 5 10km

Attachment D: E SheetArea of Interest


Public Land


LowVery Low



ATTACHMENT E

POTENTIAL IRRIGABLE LAND

SEMI-DETAILED MAPPING ENLARGEMENTS

NW Sheet

SW Sheet

E Sheet

!Manjimup

´ 0 5 10km

Attachment E: NW SheetArea of Interest


Public Land and

Land CapabilityIrrigable

Very HighHighModerate

Non-irrigableLowVery LowPrivate Land

(Remnant Vegetation, Plantations, Nature Conservation)


!Manjimup

´ 0 5 10km

Attachment E: SW SheetArea of Interest


Public Land and






´ 0 5 10km

Attachment E: E SheetArea of Interest


Public Land and






Documents

ATTACHMENT A LAND USE · 2018. 5. 15. · Category A2 land is assigned a land use score of 75 (halfway between categories A1 and B1). Category C1 and C2 land are both assigned a score