letsmap do brasil a web‐ planning · letsmap do brasil ‐ a web‐based planning support tool...
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Letsmap do Brasil a web based planningLetsmap do Brasil ‐ a web‐based planning support tool for sediment management in a
l i b i i C lmeso‐scale river basin in Western Central Brazil
C. Lorz, F. Bakker, Neumann, C., H. L. Roig, & F. Makeschin
carsten lorz@tu‐dresden decarsten.lorz@tu‐dresden.de
RegioResources 2011 A cross-disciplinary dialogue on sustainable development of regional resourcesDresden May 17-20, 2011
Brasilien
Lage des UntersuchungsgebietesLage des UntersuchungsgebietesDistrito Federal Brasília • Inhabitants: 2.5 Million
• Area: 5789 km2
• Population density: ~400/km2
BrasilienBrasilien
agricultureurban area
campocerrado
water natural forest
afforestationno vegetation
BrasilienBrasilien
Aims
General: Securing water supply for the region (Brasília DF)⇒ silting of reservoirs
Specific:• sediment sources and pathways
• minimize sediment input into reservoirs
o reduce sediment generation
o increase sediment retention⇒ Land use
BrasilienBrasilien
Sediment Cascade
upperslope
urban areas
gullyEros
ion
ener
atio
n
gullyerosion G
e
lower slope
ll i l osio
n/m
enta
tion
eten
tion
erat
ion
m e
alluvial system
ll i l
Ero
Sedi
m Re
Gen
e n
c e
t i
m
alluvial system
enta
tion
ntio
nR e
s i
d e
lake
Sedi
me
Ret
en
BrasilienBrasilien
Land use planning tool forLand‐use‐planning tool for minimizing sediment input intominimizing sediment input into
river network
BrasilienBrasilien
Planning tool Letsmap do Brasil
Web based, cellular automaton for mesoscale⇒modification of PYLWeb based, cellular automaton for mesoscale⇒modification of PYL
Land use classes (changeable by user)
Specific values (0 100) for landscape functionsSpecific values (0‐100) for landscape functions
o Sediment retention ⇒ C factor (USLE)o Runoff control ⇒ CN value (SCS)o Nitrogen availability ⇒ amount of applied N fertilizer (FAO)o Agronomic value ⇒ statistics, agricultural goods (IGBE)
www letsmap de
Landscape properties
o Sediment input
www.letsmap.de
o Sediment inputo Water retentiono Nitrogen retentiono Soil productivityo Soil productivity
Sediment retention) d f Sediment retentiona) grid map of land use b) diagram of
standardized LPF
Nitrogenretention
Agronomicvalue
Water retention
c) LegendeAfforestation
Bare soils Build up areas
CampoCampoCerrado
Degraded CerradoArable land
Irrigated landNatural forest
P t & dPasture & meadows
d) Trends after land use change
BrasilienBrasilien
Landnutzung spezifischSedimenteintrag [C‐Faktor der USLE]
C-Faktor Standardisiert [0 bis 100]
Agrarischer Wert [€/ha] nach IBGE7
Standardisiert [0 bis 100]
Wasserrückhalt [CN-Wert nach US SCS-Verfahren]8
Standardisiert [0 bis 100]
Gewässer-qualität [N
kg/ha]
Standardisiert [0 bis 100]
Acker, nicht spezifiziert
Acker, Sojabohnen, konventionell 0,20‐0,501 0,35 35 503,96 7 72 69 7 6
Acker, Sojabohnen, till 0,172 2 0,172 17 503,96 7 64 54 0 0
Sediment retention [C factor]no-tillage 0,172 , ,
Acker, Mais, konventionell
0,1720;2 0,40‐0,90;3
0,02‐0,90;1 >0,40 40,65 65 710,65 10 72 69 40 35
Acker, Mais, no-tillage 0,08‐0104 0,09 9 710,65 10 64 54 0 0
Acker Bohnen 0 30 0 401 0 35 35 978 78 14 72 69 11 10
Soy bean tillage 0.35 Soy bean no-tillage 0.17
Acker, Bohnen 0,30‐0,40 0,35 35 978,78 14 72 69 11 10
Acker, Hirse 0,40‐0,90;3 0,02‐0,91 0,65 65 205,62 3 64 54 9 8
Acker, Weizen 0,10‐0,40 1 0,25 25 1.010,36 15 64 54 9 8
Acker,Baumwolle0,50‐0,70;3 0,40‐
0,7010,55 55 810,94 12 70 65 90 78
Acker, Kaffee0,10‐0,30; 3 0,05; 1
0,219 20,219 22 1.226,75 18 66 57 115 100
Agronomic value [€ ha-1]Soy bean 704 Fruits 6 281
Obst
Ananas, Avocado, Banane, Feige,
Guave, Mandarine, Mango, Maracuja, Orange, Papaya, Wassermelone,
Weintraube, Zitrone
Papaya: 0,21;1
Orangenplantagen:
0,219020,219 22 6.281,75 92 57 41 55 48
AnnattostrauchSüßkartoffel: 0,40‐
0 50;1 0 2‐0 8;3
Fruits 6.281
Runoff control [CN]Gemüse
Annattostrauch, Kartoffel, Knoblauch,
Maniok, Reis, Süßkartoffel, Tomate, Zuckerrohr, Zwiebel
0,50; 0,2‐0,8;
Maniok: 0,20‐0,80;3
Zuckerrohr: 0,1743;2
0,13‐0,40;1
Kartoffel: 0,1‐0,51
0,5 50 6.847,91 100 70 65 57 50
Tierproduktion 0,1242 1 0,1242 12 59 44 0 0
Wiesen und Weiden 0,02‐0,055 0,035 4 0 0 49 26 0 0
Soy bean tillage 72 Soy bean no-tillage 64
Grassteppe „Campo“ 0,01 1,3 0,01 1 0 0 89 100 0 0
Steppe „Cerrado“ 0,01 1,3 0,01 1 0 0 35 0 0 0Aufforstung 0,047 2 0,047 5 0 0 43 15 0 0Buschland 0,001 1 0,001 0 0 0 35 0 0 0
Naturnahe Wälder 0,001 1,3 0,001 0 0 0 55 37 0 0Verbrannte Fläche 0,160 6 0,16 16 0 0 74 72 0 0
vegetationslos 1 1,2,3 1 100 0 0 77 78 0 0
N fertilizing [kg ha-1]Soy bean tillage 7
ll 4 Siedlungsflächen 0,1242 1 0,1242 12 0 0 77 78 0 0Wasserflächen 0,14 1 0,14 14 0 0 -- -- 0 0
Corn tillage 40
Goldbach 2010
BrasilienBrasilien
CE CE CE CE
Land Use Classes
1 1 2 2
Natural Properties
relieftexture
U AL CE AL
AL AL
CE F
CE AL
F AL
2 1 2 2
4 3 1 3
texturedistance to water...
CE F F AL
U = settlement, CE = Cerrado, AL = arable land, F = forest
Table of values
3 4 3 1
+/- Erosion+/- Water qualityNitrogen retention Sediment ret.
Erosion Water Q. Water Ret. Econ.U 0 0 0 -CE 100 100 100 0AL 50 20 20 70F 100 100 100 20
U CE AL F1 -10 +20 -20 +202 -10 +20 -10 +203 -20 +20 -20 +204 -10 +20 -10 +20
U CE AL F 1 -20 +10 -20 +102 -20 +20 -10 +203 -20 +20 -20 +204 -10 +20 -10 +20
Sed. ret. N avail. Run cont. Agro. val.
F 100 100 100 20
Example combined values for Erosion
4 -10 +20 -10 +204 10 +20 10 +20
U CE AL F1 +20 0 +20 0
+/- economy
U CE AL F 1 -20 +20 -20 +20
+/- Water retention Agronomic valueRunoff control
120 120
-10 30
120 120
120 40
40 30 120 30
2 +20 0 +20 03 +20 0 +20 04 +20 0 +20 0
2 -20 +20 -10 +203 -20 +20 -20 +204 -20 +20 -10 +20
40 30
120 120
120 30
120 30
Sediment retentionSediment retention
Agronomicvalue
Nitrogenretention
Water retentionWater retention
AfforestationArable land, corn
Bare soils Build up areasBuild up areas
CampoCerrado
Irrigated landNatural forest
Pasture & meadows
Sediment retention
Agronomicvalue
Nitrogenretention
Water retention
Sediment retentionSediment retention
Agronomicvalue
Nitrogenretention
Water retentionWater retention
AfforestationBare soils
Build up areasCampoCerrado
Natural forest
BrasilienBrasilien
Scheme for the generation of likeliness ofsediment input into river networks
runoff
S - factorL factorDEM L - factor
soil erodibilityLikeliness
of sediment input
soil map K - factornput
distance towater body
after Halbfaß & Grunewald, 2008
BrasilienBrasilien
LPP likeliness of sediment input into river network for the river basin Pipiripau
BrasilienBrasilien
Conclusions• Letsmap do Brasil is an integrating land use planning supportLetsmap do Brasil is an integrating land use planning support
tool, focusing on minimizing sediment input in river networks
• Other landscape functions are integrated, e.g. N retention, p g , g ,agronomic value (more are possible)
• Letsmap do Brasil is
o open to modification
o transparent & easy to handlep y
o participation is easy
• Letsmap do Brasil is an integrating approach that might help to p g g pp g pbridge the gap between “real” models and landscape planning
Th k !Thanks!
www iwas sachsen ufz dewww.iwas-sachsen.ufz.deFunded by