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Land classification and designation

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Open water. Land not surveyed. 27. Land grade distribution. 28. Agricultural land classification distribution North West England. 29 ... – PowerPoint PPT presentation

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Title: Land classification and designation


1
Land classification and designation
2
Why the need to classify?
  • Identification
  • Control
  • Management
  • Distribution of grant
  • targeting of finance is often a reason for
    designation

3
Designation
  • Designation and Classification are
    interchangeable terms
  • Designation can be the result of-
  • Statutory obligations
  • Voluntary agreements

4
Principles of classification
  • Clear objectives
  • Summarise data
  • Interpret data
  • Application over wide area

5
Evaluation process
  • Direct
  • Measurement by trial e.g. soil survey
  • Indirect
  • Interpretative process
  • Often arise from direct evaluation of sample

6
Classification systems
  • Categoric systems
  • Land placed in subjective categories
  • Less Favoured Areas
  • AONB
  • Parametric systems
  • Measurement determines criteria
  • Objective 1,2,3 European Union

7
Examples of classification
  • National Geological Survey
  • Soil Survey
  • SSSI
  • EU structural funds
  • Less Favoured Area
  • Green Belts
  • Open Access

8
National Geological Survey
9
Protected sites - Wales
10
EU structural funds
11
Open access land
12
Designations are numerous
  • Areas of Outstanding Natural Beauty (AONB)
  • Bat Roosts
  • Biosphere Reserves
  • Bird Sanctuaries
  • Common land
  • Community Forests
  • Conservation Areas
  • Country Parks
  • Environmentally Sensitive Areas (ESA)
  • Forest Parks
  • Green Belts
  • Groundwork Trust
  • Heritage Coasts
  • Less Favoured Areas (LFA)
  • Local Nature Reserves
  • Marine Nature Reserves
  • National Forests
  • National Nature Reserves
  • National Park Direction Areas
  • National Parks
  • National Scenic Areas
  • National Trust Projects
  • Nitrogen Sensitive Areas (NSA)
  • Pocket Parks
  • RSPB Reserves
  • Ramsar Sites
  • Regional Parks
  • Royal Parks
  • Scheduled Ancient Monuments
  • Sites of Special Scientific Interest (SSSI)
  • Special Protection Areas
  • Tir Gofal
  • Village Greens
  • Wildfowl Refuges
  • Wildlife Trust Reserves
  • Woodland Trust Reserves
  • World Heritage Sites

13
Case study agricultural land classification
  • MAFF / ADAS 1967 1974
  • New DEFRA study underway 2003-

14
Objectives
  • Suitable for advising on the use of agricultural
    land for development
  • Applied consistently to different parts of the
    country
  • Readily understandable to non-agricultural users
  • Objective and uncomplicated

15
It is used by..
  • DEFRA and others to give advice to local
    planning authorities, developers and the public
    if development is proposed on agricultural land
    or other greenfield sites that could grow
    crops.
  • The ALC grading system is also used by
    commercial consultants to advise clients on land
    uses and planning issues.
  • DEFRA 2003

16
Implications
  • Planning permission
  • Houses
  • Stables
  • Value of land
  • Grade 1 expensive
  • Grade 5 cheap
  • Paddocks

17
Land grading
Grade 1
Grade 5
Poor
Excellent
18
Criteria for grading
  • SOIL
  • Depth, drainage, stoniness, texture, structure,
    chemical properties which cannot be corrected.
  • CLIMATE
  • Temperature and rainfall aspect, exposure and
    frost risk
  • SITE
  • Slope, altitude, gradient, microrelief and flood
    risk

19
Criteria for grading
  • Suitability for agricultural production assuming
    a good but not outstanding level of management

20
Physical limitations affect.
  • The range of crops which can be grown
  • The level of yield
  • The consistency of yield
  • The cost of obtaining the crop

21
Grade 1
  • Excellent quality
  • No or very minor limitations
  • Wide range of crops
  • Consistently high yields

22
Grade 2
  • Very good quality
  • Minor limitations that affect yield, cultivation
    and harvesting
  • Wide range of crops but reduced flexibility
  • More variable yield

23
Grade 3
  • Good to moderate
  • 3a good crops
  • 3b moderate more grassland
  • Moderate limitations affect choice of crop,
    timing and type of cultivation, harvesting
  • Yield less than grade 1 2
  • More variable yield

good
moderate
24
Grade 4
  • Poor quality
  • Severe limitations
  • Grass with occasional crop
  • Grass yields moderate to high utilization
    difficulties
  • Includes droughty arable land

25
Grade 5
  • Very poor quality
  • Severe limitations permanent pasture, rough
    grazing only
  • Occasional pioneer forage crops

26
Other grades
  • Urban
  • Non agricultural land
  • Woodland
  • Agricultural buildings
  • Open water
  • Land not surveyed

27
Land grade distribution
28
Agricultural land classification distribution
North West England
29
Agricultural land classification distribution
North East England
30
Agricultural land classification distribution
Yorkshire and Humber
31
Agricultural land classification distribution
East Midlands
32
Agricultural land classification distribution
East Anglia
33
Agricultural land classification distribution
South East England
34
Agricultural land classification distribution
South West England
35
Agricultural land classification distribution
West Midlands
36
Agricultural land classification distribution
Wales
37
Criticisms
  • Only accurate for blocks of land gt 80ha
  • 50 of land is Grade 3
  • Boundaries merge and are not sharply defined
  • Not detailed enough on a field basis but work in
    progress
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