defining, measuring, and incentivizing sustainable land use
TRANSCRIPT
Defining, Measuring, & Incen1vizing Sustainable Land Use to Meet Human Needs
Kimberly A. Nicholas1, Mark V. Brady, Stefan Olin, Johan Ekroos, Jonathan W. Seaquist, Veiko Lehsten, Henrik G. Smith, Marianne Hall
1Lund University Centre for Sustainability Studies, Lund, Sweden @KA_Nicholas kimnicholas.com
13 December 2016
Photo: Tim
Lindstedt, Flickr
Land is limited on the blue planet…
NASA PPM 2 @KA_Nicholas
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Yann
Arthu
s-‐Be
rtrand
Gu
yra
Vincen
t Laforet
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4 #GlobalGoals hap://www.un.org/sustainabledevelopment/
Project Research Ques1ons 1. What tradeoffs does future land use change in
Sweden imply for key ecosystem services? 2. How do changes in ecosystem service delivery
from change in land use affect human welfare? 3. How can maximum human welfare from land
use be incen1vized? 4. How do Swedish land use decisions affect
overall ecosystem service delivery globally?
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Ecosystem structure
Ecosystem func1on
Ecosystem service Benefit Value
Ajer Haines-‐Young and Potschin, 2014 @KA_Nicholas
FOTO: ELLIOT ELLIOT/JOHNÉR
Generationsmål SWEDEN’S ENVIRONMENTAL OBJECTIVES
• Sustainable Forests • Varied Agricultural Landscape • Zero Eutrophication • Reduced Climate Impact • Clean Air • Natural Acidification Only • Flourishing Lakes & Streams • Good-Quality Groundwater • Balanced Marine Environment • Rich Diversity of Plant &
Animal Life
Assessing Tradeoffs
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Provisioning
Regula/ng
Cultural
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Tradeoffs for Sustainable Land Use
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Aesthetics
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Measuring: Selec1ng indicators
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Shannon index
Red listed bird abundance
% applied N retained
Kg CO2-‐e/m2
Tons 1mber
Tons cereal
Aesthetics
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Measuring Sustainable Land Use
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Shannon index
Red listed bird abundance
% applied N retained
Kg CO2-‐e/m2
Tons 1mber
Tons cereal
Aesthetics
LPJ-‐Guess
Regression model
Land cover analysis @KA_Nicholas
Aesthetics
Climate Projec1ons
whole is determined, as demands are not specified for
the individual land use types within this group.The maximization of the total probability at each
individual location is checked against a set of
conversion rules as specified in a conversion matrix(Figs. 2, 3). This conversion matrix indicates which
conversions are possible for each land use type, e.g.,
the conversion from agriculture to forest is notpossible during one (yearly) time step as a conse-
quence of the time it takes to grow a forest.
Conversions that are excluded by the conversionmatrix overrule the maximization of total probability.
Instead, the land use type with the highest total
probability for which the conversion is allowed willbe selected. In addition it is possible to specify that
certain conversions are only possible within delin-
eated areas, such as outside nature reserves. In thiscase a reference to a map indicating these zones is
made in the conversion matrix. The dynamics of the
land use types governed by local processes (‘bottom-up processes’ in Fig. 1) are also specified in the
conversion matrix. Instead of restricting a specific
conversion it is also possible to enforce a conversion
between land use types. When a specific conversionis expected within a specific number of years the
conversion will be enforced as soon as the number of
years is exceeded. Figure 3 illustrates this for theconversion of shrubland to forest which takes place
after a number of years depending on the growth
conditions at the location. Such locally determinedconversions are the result of specific management
practices or vegetation dynamics. Due to the spatial
variation in local conditions, these time periods arerepresented in a map (Fig. 3).
Locally determined conversions will, to some
extent, interfere with the allocation of the other landuse types that are driven by the regional demands due
to changes in conversion elasticity upon locally
determined conversions, i.e., the conversion to agri-culture is less difficult for recently abandoned
agricultural land than for shrubland. The resulting
conversion trajectories will cause intricate interac-tions between the spatial and temporal dynamics of
the simulation.
Land Use (i,t)
Land Use (i,t+1)
Does the allocated area equal the demanded area for all land use
types/groups
Is the conversion allowed?
Make all enforced conversions
Assign land use with highest total probability to location (i)
Land Use type specific conditions
Conversion Elasticity (lu)
Competitive advantage (lu)
Location and land use type specific conditions
Location suitability (I,lu)
Neighborhood suitability (I,lu)
Update land use history information
Land use history
NO
NO
YES
YES
Itera
tivel
y ad
apt
com
petit
ive
adva
ntag
e of
la
nd u
se ty
pes
Tim
e st
eps
Agriculture
Abandonedfarmland
Shrubland
Forest
Agr
icul
ture
Aba
ndon
edfa
rmla
nd
Shru
blan
d
Fore
st
Conversion matrix
Fig. 2 Flow-chart of the allocation procedure of the Dyna-CLUE model
1170 Landscape Ecol (2009) 24:1167–1181
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Dyna-‐CLUE Land Use Scenarios
Land
Use
Mod
eling
LPJ-‐Guess Regression Models Ecosystem
Service
Mod
eling
Visualize Assess tradeoffs Policy analysis
Analysis
Methods
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Fig. 1 Study area and the two different farming systems. Pictures a, b show high-intensity farms and c, d low-intensity farms. e Shows theaverage land cover composition within 250 and 1000 m, respectively, from each farmhouse in the different farming systems
S104 AMBIO 2015, 44(Suppl. 1):S102–S112
123! The Author(s) 2015. This article is published with open access at Springerlink.com
www.kva.se/en
Malinga et al., 2015, Ambio
High Intensity
Low Intensity
Contras1ng farming intensity
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Current
Double Cereal Produc1on
Intensifica1on
Produc/on Crop Area N input (tons) (ha) (kg)
Land Use Scenarios Linked to Policy
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Current land use in Sweden
Cropland
Map: Åke Nilsson, MarkInfo, Swedish survey of Forest Soils
Forest
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Cropland changes under land use scenarios
Cropland Area (m ha)
3.3 6.0 2.6
Cropland % of total area
8% 15% 6.5%
Current 2x cereals Intensifica1on Frac1o
n crop
land
per grid
cell
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Nitrogen loss under land use scenarios Current 2x cereals Intensifica1on
kton N/year @KA_Nicholas
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Results: Change in Ecosystem Services
Aesthetics Aesthetics Aesthetics
Current 2x cereals Intensifica1on
*Preliminary
• Either doubling or intensifying crop produc1on decreases N reten1on by ca. 40%
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Today
2x increase
Op1mal trade-‐off between conflic1ng ecosystem services
Marginal Cost of biodiversity loss
Marginal Benefit of food produc/on
Economic Value ($)
Intensity of food produc/on (% of profit maximizing N kg/ha)
0% 100% (= Today!) Socially op/mal b
a
c
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Financial support from: • Lund University Pufendorf Advanced Study Group • Swedish Research Council Project Grant 2014-‐5899,
“Agromes: Mapping the environmental, economic, and social tradeoffs of European farming systems across scales.”
Thank you!
Photo: M
arcel Kerkhof, Flickr
#StandUpForScience-‐ rally today at 12:00, Jessie Square
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