Land use classification doesn’t necessarily have to be expensive and complicated: you can get a good high level representation of current and potential land-use for a land block using freely available data and software. The results of a simple analysis can be used to create profit forecasts for your land that can be used in your land management plan. In this short demo, we will use QGIS plugins and free data to create a land cover classification from satellite images, a slope analysis from the terrain model, and a land capability classification using the LandCare LUC database. We will then combine the results together to find out what areas of a land block are suitable for horticulture, pasture and forestry.

1. QUICK AND EASY
LAND USE CLASSIFICATION
WITH QGIS
SuzanneBergman
GISAnalyst/Geologist

2. 2
downloadabledesktopGIS
package
Biginternational user
community.Free
supportandtraining.
Compatiblewith
multipleGISdata,
databasetypes,web
mapservices andmore.
Availableformultiple
operatingsystems.

3. QGIS
DEMO:
BEST AREA
FOR
HORTICULTRE
TERRAIN LANDUSECAPABILITY
Use free, current, opensource
data to do a quick analysis of
your land block. In this demo
we are looking for areas best
suited for horticulture.
CURRENTLANDCOVER
Flatlandwitha
slope<10degrees
LUCClass1–4
Arableland
Grassland&Crops
BareSoil

4. DATA SOURCES AND EXAMPLES
Insert the title of your subtitle Here QGIS AND QUICK MAP SERVICES
LINZ PORTAL
LANDCARE RESEARCH
https://data.linz.govt.nz/search/
https://lris.scinfo.org.nz/layer/48076-nzlri-land-use-
capability/
SEMI-AUTOMATIC CLASSIFICATION PLUGIN
https://fromgistors.blogspot.com/p/semi-automatic-
classification-plugin.html
https://data.linz.govt.nz/search/
HOP GROWING MODEL
QGIS CLOUD
QGIS COURSE MATERIAL FROM IMW
https://qgiscloud.com
https://lris.scinfo.org.nz/layer/48076-nzlri-land-use-
capability/
https://storymaps.arcgis.com/stories/a56b38e7584c470e80
830d5088aaa9cb/

5. TERRAIN
1 2 3
DEM Slope Reclassify
Slope

6. 1

7. 2

8. 2

9. 3

10. 3

11. 3

12. LAND COVER CLASSIFICATION
Semi-automatic
classification of remote
sensing images.
Download of free images
(Landsat, Sentinel-2,
Sentinel-3, ASTER, MODIS)
Pre- and postprocessing
SEMI-AUTOMATIC
CLASSIFICATION
PLUGIN
01 03
DownloadData
02
Clipdatatostudyarea
Convertdatatosurfacereflectance
04
Definebandsetsandtraininginput
05
CreateROIs
06
Createaclassification

13. 01
DownloadData

14. 01
DownloadData

15. 01
DownloadData

16. 01
DownloadData

17. 01
DownloadData

18. 01
DownloadData

19. 02
Convertdatatosurfacereflectance

20. 02
Convertdatatosurfacereflectance

21. 03
Clipdatatostudyarea

22. 03
Clipdatatostudyarea

23. 03
Clipdatatostudyarea

24. 04
Definebandsetsandtraininginput

25. 04
Definebandsetsandtraininginput

26. Sentinel 2:
11-8-2
BANDSET 1:
9-7-1
Sentinel 2
4-3-2
BANDSET 1:
3-2-1
Sentinel:
4-8-12
BANDSET 1:
3-7-10
Orthophoto
04
Definebandsetsandtraininginput
Natural
colour
Agriculture
Vegetation
and urban

27. 04
Definebandsetsandtraininginput

28. CLASSES AND MACROCLASSES
CLASS
MACROCLASS
Forestry
Pasture
Horticulture
Lakes
Rivers
Sea
Buildings
Roads
Infrastructure
Bare soil
Dirt road
WATER SOILBUILT- UPVEGETATION

29. 05
CreateROIs

30. 05
CreateROIs

31. 05
CreateROIs

32. 05
CreateROIs

33. 05
CreateROIs
05
CreateROIs

34. 05
CreateROIs
05
CreateROIs

35. 05
CreateROIs
05
CreateROIs

36. 06
Createaclassification

37. 06
Createaclassification

38. 06
Createaclassification

39. 06
Createaclassification

40. 06
Createaclassification

41. 06
Createaclassification

42. LAND USE CAPABILITY
1
2
3
4
5
6
7
8
Arable cropping
suitability
Pastoral grazing
suitability
Production forestry
suitability
General
suitability
High
Low
High
Low
Unsuitable
Unsuitable Unsuitable Unsuitable
High
Low
Pastoral or
forestry land
Multiple use
land
Increasinglimitationstouse
Decreasingversatilityofuse
LUC
CLASS

49. LAND USE CLASSIFICATION RESULTS
SLOPE
LAND COVER CLASSIFICATION
LAND USE CAPABILITY

55. WHY QGIS IS A SUPERHERO
AllthetoolstocreateaGISenterprise platform
Extensiveresources available online
Easytouseandfree
Pluginsavailable foreverything