Valencia's irrigation system is now a model for sustainable farming
bbc.com
bbc.com
Legend has it that when God created the Valais, he asked the local farmers whether they wanted rain, or whether they would take care of their own irrigation. After a brief consultation, they announced that, with all due respect, irrigation was too serious a matter to entrust to a bloody foreigner…
It was hypnotic watching the sharecropper, with just a hoe, directing the water from the reservoir to all the trees, lettuces, watermellons... I wonder if those skills were transmited from generation to generation for centuries. With modern irrigation systems, I guess they're being lost.
Probably for good reason. Manually dug irrigation trenches are back-breaking labor.
In the case of Valencia, there's even archaelogical evidence of pre-Roman irrigation systems [1][2].
[1] https://templersdeburjassot.wordpress.com/2018/05/20/breve-a...
[2] https://www.mapa.gob.es/ministerio/pags/Biblioteca/fondo/pdf...
I worked at for an irrigation supplier for a few years and got to see all the ins-and-outs of how these machines work. The supporting infrastructure is pretty impressive too. The pumps, pipes, valves, and electrical panels that drive these machines is an engineering marvel.
The circular pattern comes from the area irrigated by the simplest configuration of a center-pivot [0], which is a fixed point in the center to access water. "Non-circular" area require linear/lateral movement "center-pivots" that require a way more complex control system, or some kind of booster to cover the "corners of a square".
* after a devastating flood in the 1950s they "moved" the river out of the city and they used the original channel to build a 10km long park with tons of infrastructure for sports and recreation: https://metropolismag.com/projects/how-valencia-turned-crisi...
* they have a network of docked city bikes with ~300 stations around the city. Docked bikes are not perfect, but don't cause the mess that dockless bikes do. It costs €30/year and every ride is free for 30min. (it's not unique, as other cities have similar networks, but it's really well executed)
* their Ciudad de las artes y ciencias (City of arts and science) is a beautiful complex with a museum, cinema, oceanographic park and iirc there's even a night club somewhere there. Really cool place for tourist and local residents to hang around: https://en.wikipedia.org/wiki/City_of_Arts_and_Sciences
The Delos headquarters in Westworld were filmed there (third season).
There's actually 3 :D Umbracle, the one that exists open air under the awnings is great in the summer time air. It only runs during the warmer months as the locals can't stand the 20C night temperature.
Valen-bici is super convenient, they are pretty heavy steel framed machines but everythings flat so it's not a great bother.
The real gem is the extensive bike lanes that stretch upwards of 20km out from the city. Every main road has a bike lane. Electric scooters were the real ticket and I had one while I was there. ALmost went a year carbon free transport.
First time I’ve seen a bike highway in nature and I think its incredibly amazing. Definitely a highlight during my stay there.
And to top it off the beaches are amazing too - they are “thicker” than most greek/italian beaches are long, and its kilometers long at that too.
Most city beaches are a crammed affair with too much people for my comfort. Valencian ones made me feel a bit lonely even with thousands of people around, just because all of them are spread through this huge area.
For me it felt like something built for cars - while driving past it in a car or looking at it from a hotel skybar its breathtaking, but the more you get close the less interesting it becomes.
I remember taking a look at Gaudy’s architectural masterpieces in Barcelona - those were much more inspirational for me as they were more fractal in nature, the more you got close the more you could discover, the guy designed the outside look down to the doorhandles on the interior doors. It was a endless maze of detail, which looked very futuristic from a distance too.
I’d liken Gaudy to Steve’s Jobs where he _had_ to control all the details. Whereas Valencia’s ciudad de las artes to something designed by a committee - amazing for its purpose, but not much beyond that.
No wonder it has continued throughout time. It's once we try to farm intensively that we see issues.
So this is a model for sustainability. How does this scale to replace the industrial farming?
Every locale should be responsible for its own food security. As each locale is different, there is no universal solution. Each locale will need to be resourceful and adapt according to its own climate and what resources are available in its vicinity.
Sadly, some locales are unprepared for food self-sustainability, and the denizens of these places will have to find a way to adapt eventually, whether by will or climatic/geo-political event. Better sooner than too late.
https://www.eldiario.es/economia/afronta-empresas-alimentos-...
Much better to farm elsewhere and transport the food, imho.
The part that I find interesting to think about is the relationship between the areas. We require intensive farming to sustain the current lifestyle of people, yet most are very disconnected from the source of their food. If we grew more food locally (impractical given the current setup) then people would witness the impacts of intensive agriculture. This might also help constrain population levels closer to sustainable numbers because people see how finite the resources are.
I've seen a variety of estimates of how many people the world can support. But I haven't seen any that estimate how many the world can sustainably support. If we aren't thinking longterm, then we're just trudging towards bigger problems with many of the smaller ones we solve. For example, use of synthetic nitrogen fertilizer from non-renewable sources, or biosecurity threats from fast international travel and trade, or overfishing, etc. Pretty much all due to demand for food and the modern lifestyle.
I have no problem with stating that it was built, or implemented by Moorish rulers. I have a problem with 'invented'.
Waterways specifically for irrigation, in near-identical (and many better) designs have been around significantly longer than 1,200 years. The Romans, Egyptians, Mesopotamians, Incas, Mayans, and so on. Go to central Arizona in the USA to see about 700 miles of irrigation canals built by the Hohokams. Or, check out the Assyrians' inverted siphon for the Nineveh Aqueducts.
The FIT/FIR system is not going to survive. Of this, I am certain. It's a concept based on mistaken ideas about the amount of water in the American southwest, in turn based on a particularly wet couple of decades at the turn of the 20th century. If the current drought continues, or at some other point in the future, the implicit farming-centric nature of FIT/FIR is going to clash with the desires of these states' growing populations. Farming is not going to win (by farming, I mean large scale industrial production, mostly for export).
As temperatures rise places that use aqueduct and flood irrigation will have to contend with the loss of water to evaporation during transport.
Fortunately people out on the American plains have this figured out and better technologies exist. The problem is convincing farmers and law makers in areas that have traditionally had abundances of water to change their ways.
But there are different standards. Open waterways meet other standards of "better."
The area being serviced isn't massive and the chanels are narrow and quite deep.
So on the one hand, it's a huge problem, but on the other, it's not.
Agriculture in that region is also depleting the major aquifer faster than it can be recharged through rain. Not the best example of sustainable irrigation.
https://en.wikipedia.org/wiki/Ogallala_Aquifer#Accelerated_d...
This episode is about Morocco/Spain/Italy: https://www.youtube.com/watch?v=CbkoiWgvP0M
Truth is, there's 2 types of people that go to the central market, old people and tourists.
Everyone else drives to Mercadona, a supermarket like any other, in their Mercedes. You can also buy fantastic veges and fruits there but without dealing with 5-6 merchants to get what you need.
Interestingly Mercadona has also started making prepared meals, which is a nice keep-up-with-the-times upgrade IMHO, nowadays that young people cook less and less.
https://www.google.com/maps/@39.4650072,-0.3648888,3a,75y,12...
Note: given the area of that one, I'd also guesstimate the vast majority of the people parking in that Mercadona were JUST using it as a random short-term parking, not as the supermarket parking! Like if you go to the area you park there, then do your business/visit your friend/whatever, then maybe buy a couple of things in Mercadona so the parking is free (and you probably needed those things for the week anyway). At least that's how locals would use that parking, because: if you live within 3-4 blocks you'd walk, if you live further than 4 blocks you'd go to another Mercadona that is within 3 blocks of your home, and if you live very far away you'd drive to a larger supermarket on the outskirts, not to this small one in the city center (except, as I said, if you have other business to attend there and then you use the parking as a convenience, and buy something for free parking).
This seems similar to the situation in the US, with the major difference that far more people in Spain live in a central area rather than in the outskirts. The distinction to make fun of is not how people in cities in either country live, but the large numbers that live in the outskirts/suburbs in the US.
The city I was raised at used to be a big Muslim city. When they dig the foundations for new buildings, they often get disrupted by muslim ruins, which might need to be protected/removed carefully. And if they dig deeper (say, for a subterranean parking) they may find ancient Roman ruins.
In the western world ancient Rome tends to be put in a good light; as "the civilisation" against "the barbarians". However, ancient Romans were very ardent and violent colonizers ("colonia" is after all a Roman word). They took slaves, and women could not vote or hold political office. They stayed in the Iberian peninsula for 700 years.
The Arab muslims that followed them were only faster on their initial conquest: In around 3 years, they had full control of everything. They lasted 800 years, until the Emirate of Granada, their last bastion, was conquered. But by that point they had been in decline for 4 centuries, gradually being conquered by the Christians or being consumed by inner-fighting.
While I am sure there was some influence (there are still lots Arab words in modern Spanish, after all) after 4 centuries of almost continuous but gradual conquer, I doubt the conquistadors were "emulating" the Arabs. I think they were "used to a life of war and conquer", by that point. So they just kept going. If they were able to "emulate" the Arabian conquests they would be emulating people from 400 years prior, and at that point they might as well be emulating the ancient Romans.
Women have always farmed here. Always.
Fishing in l'Albufera (the "lake" outside Valencia) was limited to men for a long time but there's a reason for that.
Same reason may other jobs and activities have been mean-only in many parts of the world, forever.
Survival of the species.
Men are expendable. Women are not.
Without children, civilizations perish. Women can have babies, men cannot. In order to protect them from danger, women have traditionally taken the most dangerous and exhausting jobs. Plain and simple. Go check all that heteropatriachate and woke arguments with that lens, you'll see how the actual reason of most of the men-only stuff is protection of women, which made a lot of sense until relatively recently because a sick or hurt woman was a dead woman because medicine was primitive. And this is and has been true for all of the world, even today in many regions in Africa, Asia and South America.