1

Godert van Lynden

2

Degradation:

What do we know...?

A lot!

3

And much is being done about it...

€ $ ¥ £ € $ ¥ £ € $ ¥ £ € $ ¥ £ € $ ¥ £ € $ € $ ¥ £

4

...but where?

5

6

7

8

Land Use System (LUS)

Type

Area trend

Intensity trend

Mapping Land Degradation and SLM

• Method jointly revised with LADA and DESIRE

• More emphasis on impact on Ecosystem Services,

direct and indirect causes

• Being tested in 6 LADA pilot countries (national level)

• Applied in 18 DESIRE study sites (local level)

• Additionally tested in Tajikistan and Switzerland

(village level)

Mapping Unit

9

Degradation / Mapping unit SLM / Mapping unit

Type Name / Group / Measure

Extent (area) Extent (area)

Degree Effectiveness

Impact on ecosystem

services (type and level)

Impact on ecosystem

services (type and level)

Direct causes

Indirect causes Degradation addressed

Recommendation

Mapping Degradation and Conservation

10

11

12

13

14

15

16

17

18

19

Some challenges!• How to visualise “dominant” degradation (or conservation) types

in case of combinations or multiple types / unit:

Mapping Unit ID

a) Type b) Extent c) Degree d) Rate

i ii iii

13 Wt Wg Wo 30 2 0

13 Ha Hg Hq 70 3 -99

14 Wt Wg Wo 30 2 0

14 Ha Hg Hq 60 3 0

15 Ha Hg Hq 60 3 0

15 Wt Wg Wo 30 2 0

• Show each combination? ( too many legend units)

• Show dominant types only ( what is dominant: highest degree,

highest extent,…)

• …?

20

Some (more) challenges

Degradation

g) Impact on ecosystem services

P1-1; E3-1; E6-1; S6-1

P1-1; P2-1; E1-1; E6-1; S6-2; E5-1

P1-1; P2-1; E1-1; E6-1; S6-2; E5-1

P1-2; P2-2; E1-2; E6-2; S6-2; E5-1

Conservation

g) Impact on ecosystem services

P2+1, E1+1, S7+1

E3+1, E4+1, E6+1

E1+2, S3+1, P3-1

P2+1, E1+2, S7+2

• How to display complex multiple data like Impact on ES?

5-URBAN

0

50

100

BIOMASS (ACC)

BIOMASS (Y)

SOIL HEALTH

WATER Q/QBIODIVERSITY

ECONOMIC BENEFIT

SOCIAL BENEFIT

4-SUST. AGRICULTURE

0

50

100

BIOMASS (ACC)

BIOMASS (Y)

SOIL HEALTH

WATER Q/QBIODIVERSITY

ECONOMIC BENEFIT

SOCIAL BENEFIT

Sustainable Agriculture Urbanisation

21

Some (remaining) challenges

• Area calculations and summary/analysis

• Quantification and verification

• Use RS and modelling to improve the

system

Sustainable Agriculture Urbanisation

22

Websites

– www.desire-project.eu

– www.wocat.net

– www.fao.org/nr/lada/

– www.isric.org

Thank you