Allotments - Spain

Whilst researching various topics I have come across a number of references to academic studies and the promotion or otherwise of what we must translate as public allotments. This piece of research done by Geography Department of Barcelona University I discovered on a site "City Farmers" (See (1) below - a title I like and may be a better way of looking at the issue these days. However here we have data on "vegetable gardens" in the Metropolitan Region of Barcelona. At the time of the research 132 plot holders were interviewed. Their characteristics generally were of post-retirement working class men who had migrated to the region and used their gardens for what appears to be a mixed and common set of aims for many allotment holders in Europe ie supporting their families with extra food, a social element and a general bonding which keeps rural traditions alive.
The authors go on to say though that there is a contradiction in public policies between those who would eliminate these urban gardens and the "greening of the city" and policies of sustainability. Where have we heard that before?
There is a great deal of evidence I could drag on to this site which shows that private business interests will succeed over public and neighbourhood policies but I wont bore you with it... except to say that image promotion of a potential Olympic city draws out promises given to the indigenous population not necessarily implemented by planners (Barcelona, Athens - so watch out London!) and to quote what I consider to be an important pointer to the future in this quote (2) :

"One particular case of urban agriculture is allotments located in public land in periurban areas. Although they are considered as marginal in areas such as the Barcelona metropolis, this is one activity which, if carefully regulated and even suitably promoted, can contribute to structuring peri-urban areas, generating laudable landscapes and satisfying the needs of many people. Examples of this can be seen in the outskirts of many central and northern European towns and cities. Private allotments can be compatible with traditional open spaces or incorporated into new metropolitan open spaces.Transforming this avocation, removing it from marginal spaces and relocatingit in suitable locations where it can be regulated, is something which needs to be done, but we can also see it as a good solution to shaping to our open spaces. Many European cities are going back to the policy of including allotments in public parks, thus reclaiming the tradition begun in Germany at the end of the 19th century."

There is very little mention in the literature of any other sensible town and public policy for Spain other than Barcelona. I believe Valencia has made some moves in this direction. However I was intrigued when I heard that some of the Spanish "townies" had been asking around for available plots of unworked land. Maybe there is change in the wind here as well.....

References
1.
http://www.cityfarmer.info/urbanization-and-class-produced-natures-vegetable-gardens-in-the-barcelona-metropolitan-region-mrb-spain/

2.
http://ddd.uab.cat/pub/prmb/18883621n47p91.pdf