Este documento describe el proyecto EXTERSIAL GIS, el cual investiga las externalidades territoriales resultantes de las actividades económico-institucionales de los sistemas agroalimentarios locales vinculados a denominaciones de origen de aceite de oliva. Presenta dos estudios de caso sobre el cambio de uso del suelo en la denominación de origen de Estepa y la regeneración de la vegetación nativa en olivares marginales de la denominación de origen de Sierra de Segura. El documento proporciona información técnica sobre el SIG geodatabase y las fu
1. Olive Groves Landscape Dynamics
EXTERSIAL GIS
Victoria González Cascón1 Isabel del Bosque González1 Alejandro Rescia Perazzo2 Javier Sanz Cañada1
1 Centro de Ciencias Humanas y Sociales (CCHS) Consejo Superior de Investigaciones Científicas (CSIC)
2 Facultad de Ciencias Biológicas (FCB) Universidad Complutense de Madrid (UCM)
2. EXTERSIAL GIS
Contents:
1. Extersial GIS features:
Objetive
Technical characteristics
Study area
Information sources
2. Two case studies :
2.1. Land use/land cover change
Methodology: Cross-tabulation and map intersection in Estepa Designation of
Origin.
2.2. Native vegetation regeneration on marginal olive groves in Sierra de Segura
Designation of Origin.
3. EXTERSIAL GIS
EXTERSIAL: Territorial externalities in Local Agro-Food Systems: rural development,
landscapes and public goods in olive oil designations of origin*
Research organizations involved:
•Consejo Superior de Investigaciones Cientificas.
•Universidad de Sevilla
•Universidad Complutense de Madrid
•Centro de Investigación y Tecnología Agroalimentaria de Aragón
•Universidad de Jaen
•Centre International de Recherche sur l’Agriculture et le Développement
(CIRAD). Montpellier . Francia
•Universidad Nacional Autónoma de México (UNAM)
•Junta de Andalucía
Agency sponsor observer:
•Fundación CITOLIVA, Centro de Innovación y Tecnología del Olivar y del Aceite.
* * P.N I+D+i: MICINN: CSO2009-08154.
4. EXTERSIAL GIS
The objective is to investigate and to evaluate the
territorial externalities resulting from the economic-
institutional activities of LAFS which produce typical food
products, such as those linked to olive oil designations of
origin. The aim is to contribute to the decision making
processes inherent to the public policies that reward the
reduction of the negative externalities and the
encouragement of the positive ones. Some of the
externalities to be considered are the preservation of the
agricultural landscapes, the diminution of the soil erosion,
the protection of the agricultural systems’ biodiversity.
5. EXTERSIAL GIS
Technical specifications :
Reference System: ETRS89 UTM Zone 30 N
Scale : 1:10.000 to 1:100.000
Geografic area: Andalusia Autonomy Region
Estepa and Sierra de Segura Denomination of Origin
9. EXTERSIAL GIS
Two case studies (analysis examples) :
1-Land use/land cover change in Estepa Designation Origin
2-Native vegetation regeneration on marginal olive groves in Sierra de Segura
Designation of Origin
1- Land use/land cover change Estepa Designation Origin methodology:
1.1 Calculate land use change over three dates
Dates: 1990-2000-2006
Carthography : Corine Land Cover
Scale: 1:100.000
1.2 Calculate land use change over three dates
Dates: 1956-1999-2003
Cartography: Andalusia Autonomy Region
Scale: 1:25.000
24. EXTERSIAL GIS
Contribuciones de distintas Contribución de distintas categorias al
categorias al olivar 1956-1999 olivar 1999-2003
Zonas ind,com y transportes Zonas ind,com y transportes
Urbano Urbano
Talas y plantaciones forestales… Talas y plantaciones forestales…
Roquedos y suelos desnudos Roquedos y suelos desnudos
Pastizal arbolado Pastizal arbolado
Pastizal Pastizal
Olivares regados Olivares regados
Olivar abandonado Olivar abandonado
Mosaico de cultivos y… Mosaico de cultivos y vegetacion…
Mosaico de cultivos A olivar Mosaico de cultivos Olivar
Matorral arbolado Matorral arbolado
Matorral Matorral
Cultivos leñosos Cultivos leñosos
Cultivos herbaceos arbolados Cultivos herbaceos arbolados
Cultivos herbaceos Cultivos herbaceos
Bosque Bosque
Balsas alpechin Balsas alpechin
Superfi
Aguas continentales Aguas continentales cies en
0 2000 4000 6000 8000 0 500 1000 1500 2000 2500 3000
25. EXTERSIAL GIS
Results:
Results:
1.Due to differences in scale, dates and agro-ecosystems, map comparison is not completely feasible
2.Land dynamics reveal the next trends:
• Olives groves increase their surface at the expense of arable crops and, at a lesser extent, of
mosaic orchards and vegetable gardens. This tendency takes place during the last two or three
decades and it is particularly strong during the last one: 2.82 % of the total surface in the region
in 1990-2000 and 4.05% in 2000-2006 (CLC). The main reasons are:
Increased support of the olive oil production by the EU Common Agricultural Policy since 1986,
when Spain entered in the former EEC
Scarce possibilities of subsistence for the former agricultural crops, particularly cereals, because of
the little territorial competitiveness, in physical terms, in comparison with other European
production areas
Abandon of mosaic orchards and vegetable gardens, dedicated formerly to the familiar consumption
New olive groves are generally irrigated and dedicated to an intensive production
• Olive groves losses surface in favor of transport infrastructures (high speed train and highways),
industrial parks, buildings in the neighborhood of urban areas and evaporation or irrigation
pools: 0.56 % of the total surface in the region in 1990-2000 and 0.05% in 2000-2006 (CLC).
26. EXTERSIAL GIS
Two analysis examples :
1-Land use/land cover change in Estepa Designation Origin
2-Native vegetation regeneration on marginal olive groves in Sierra de
Segura Designation of Origin
Objectives:
2.1 Identify marginal area olive groves
2.2 Classify (Order) marginal olive crops areas according to three
variables :
Pluviometry
Aspect (Orientation)
Native vegetation neighbour
27. EXTERSIAL GIS
Calculating Marginal olive groves (physical marginalisation)
Vector overlay analysis: Three conditions applied to olive groves
areas.
28. EXTERSIAL GIS
marginal olive grove calculation
Vector overlay analysis
29. EXTERSIAL GIS
*Sort marginal olive groves polygons by three features: - Orientation
- Proximity of native vegetation
- Pluviometry
*J.R. Guzmán, R.M. Navarro Carrillo. Restauración ecológica de olivares marginales: potencialidades y limitaciones
“Ecosistemas” 14 (2): 116-131. Mayo 2005.
32. EXTERSIAL GIS
Results:
-Agricultural marginalisation (in olive groves) depends on the interactions of physical and socio-economic
factors. Physical factors such as slope degree, soil traits, climate parameters.
- 3,52 % of the area of olive groves in Sierra de Segura D.O. has been identified as being marginal
considering: slope (> 20%), height (> 1,000 m) and use capacity (soil quality).
-Potential restoration (in olive groves) depends on the interactions of bio-physical, ecological and
landscape factors such as connectivity, dispersal spectrum, age and type of neighbor vegetation (or land
use), contingency factors (uses and perturbations), aspect and rainfalls.
- 0,30 % of the area of olive groves in Sierra de Segura D.O. has been a high potential of native vegetation
regeneration considering: aspect, land use neighbor and rainfalls.
-Overlay of Native vegetation regeneration map and Marginal olive groves map has showed that 8,66 % of
marginal groves has high potential of restoration.
-For landscape management to biodiversity conservation is advisable an organised abandonment of
marginal olive groves with high and medium potential of regeneration.
33. EXTERSIAL GIS
References
Arriaza, M. and O. .Nekhay (2003). Determinación de zonas de olivar de montaña
para la resturación de flora y fauna silvestre. Sostenibilidad de la producción de
Olivar en Andalucía J. d. Andalucía. Sevilla.
http://www.juntadeandalucia.es/opencms/opencms/system/bodies/contenidos/public
aciones/pubcap/2009/pubcap_3099/Sostenibilidad_agraria.pdf
Clavero, I., M.Santos, O.Navarro, J. J. G. ., F. Cáceres and J. M. Moreira (2010).
Implementación de un sistema de escenarios futuros sobre el mapa de usos de
suelo de Andalucía. Congreso Nacional de Tecnologías de la Información
Geográfica
Sevilla.
http://age.ieg.csic.es/metodos/2010_Sevilla/ponencia3/CLAVERO.pdf
Guzmán, J. R. and R. M. Navarro (2005). "Restauración ecológica de olivares
marginales: potencialidades y limitaciones." Ecosistemas 14(2).
http://www.revistaecosistemas.net/articulo.asp?Id=114
Hewitt, R. and F. Escobar (2011). "The territorial dynamics of fast-growing regions:
Unsustainable land use change and future policy challenges in Madrid, Spain."
Applied Geography 31: 650-667.
http://www.sciencedirect.com/science/article/pii/S0143622810001426
34. EXTERSIAL GIS
References
Neckhay, O., M. Arriaza and J.R.Guzmán. (2009). "Spatial analysis of the suitability
of olive plantations for wildlife habitat restoration." Computer and electronics in
Agriculture 65: 49-64.
http://infolib.hua.edu.vn/Fulltext/ChuyenDe2009/CD260/37.pdf
Plata, W., M. Gómez and J. Bosque (2009). "Cambios de uso del suelo y expansión
urbana en la comunidad de Madrid (1990-2000)." Scripta Nova XII(293).
http://www.ub.es/geocrit/sn/sn-293.htm
Pontius, R. G., E. Shusas and M. McEchern (2004). "Detecting important categorical
land changes while accounting for persistente." Agriculture, Ecosystems and
Environment 101: 251-268.
http://www.clarku.edu/~rpontius/pontius_etal_2004_aee.pdf
Vanda, M., Ed. (2005). IMAGE2000 and CLC2000 Products and Methods. Corine
Land Cover updating for the year 2000. Ispra, Italy
35. Thanks for your attention
Unidad de Sistemas de Información Geográfica
victoria.gonzalez@cchs.csic.es
Phone: 916022725
Centro de Ciencias Humanas y Sociales (CCHS)
Consejo Superior de Investigaciones Científicas (CSIC)