Puquios

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Puquios
Puquios aqueduct Nazca Peru.JPG
Peru physical map.svg
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Shown within Peru
Alternative nameFiltration Galleries
Location Nazca, Ica Region, Peru
Coordinates 14°49′34″S74°54′40″W / 14.826°S 74.911°W / -14.826; -74.911
Typeirrigation system
History
Foundedc. 500 CE
AbandonedStill in use
The technology of the Qanats of Iran is similar to that used for the puquios of Peru. Qanat cross section.svg
The technology of the Qanats of Iran is similar to that used for the puquios of Peru.
The Cantalloc puquios near Nazca, Peru. The cork-screwing funnels are for access to the underground aqueduct. 02-Aqueductos de Cantalloc-nX-32.jpg
The Cantalloc puquios near Nazca, Peru. The cork-screwing funnels are for access to the underground aqueduct.
An aqueduct emerges from an underground or gallery puquios into a trench which supplies water for irrigation and domestic uses. Nazca irrigation 01.jpg
An aqueduct emerges from an underground or gallery puquios into a trench which supplies water for irrigation and domestic uses.
Except for river valleys where irrigation is possible, the desert of the Nazca Region is barren. The Pan American Highway is in the distance. Desert of Paracas, Peru - Paracas National Reserve.jpg
Except for river valleys where irrigation is possible, the desert of the Nazca Region is barren. The Pan American Highway is in the distance.

Puquios (from Quechua pukyu meaning source, spring, or water well) are ancient systems of subterranean aqueducts which allow water to be transported over long distances in hot dry climates without loss of much of the water to evaporation. Puquios are found in the coastal deserts of southern Peru, especially in the Nazca region, and northern Chile. Forty-three puquios in the Nazca region were still in use in the early 21st century and relied upon to bring fresh water for irrigation and domestic use into desert settlements. The origin and dating of the Nazca puquios is disputed, although some archaeologists have estimated that their construction began about 500 CE by indigenous people of the Nazca culture. [1]

Contents

The technology of the puquios is similar to that of the Qanats of Iran and other desert areas of Asia and Europe, including Spain. A few puquios in northern Chile and in other parts of Peru were probably constructed at the initiative of the Spanish after the conquest of the Inca Empire in the 16th century. [2]

Origins and controversies

Chile

The puquios first became a subject of study in the early 20th century. [3] Although they had been known before, historic evidence was scarce. Around 1900 scholars noted that puquios, locally known as socavones (lit. shafts), were spread through the oases of Atacama Desert. [4] In the 21st century, puquios, in various states of use and decay, still exist in the valleys of Azapa and Sibaya and the oases of La Calera, Pica-Matilla and Puquio de Núñez. [4] In 1918 geologist Juan Brüggen mentioned the existence of 23 socavones (shafts) in the Pica oasis, yet these have since been abandoned due to economic and social changes. [4] The puquios of Pica-Matilla and Puquio Núñez tap the Pica Aquifer. [4]

Nazca puquios in Peru

The puquios of the Nazca (or Nasca) region are of most interest to archaeologists as the area was the center of pre-Columbian civilizations such as Nazca culture which flourished from 100 BCE to 800 CE. Most archaeologists believe that the Nazca puquios are of pre-Columbian origin, but some believe that they were built by the indigenous subjects of the Spanish colonists in the 16th century. The theory of a Spanish origin holds that the puquios technology is not substantially different from Spanish techniques used from the early conquest to drain mines. [5] An early example is the mine of Potosí that was drained by subterranean canals as early as 1556 following instructions of Florentine engineer Nicolás de Benito. [5] [6] Another argument for the Hispanic origin of puquios is that a Spanish law in Peru decreed that water from pre-Hispanic waterworks must be shared among landowners while the water from Hispanic waterworks could be owned by a single landowner. In an 18th-century legal case, a judge ruled in favor of the Hispanic origin of the puquios in the Chancay valley. [7]

Proponents for the pre-Hispanic origin of the Nazca puquios cite the establishment of large settlements in river valleys with puquios in the 6th century CE, an indication that the settlement was stimulated by the water supplied by the puquios. They interpret Nazca culture iconography as portraying puquios symbolically. Climatic change may also have been a factor as the region entered several centuries of extreme aridity after about 400 CE which required the construction of irrigation works, presumably puquios, to provide water for domestic use and irrigation. The first known historical writing to refer to puquios in Nazca was in 1605 by the Spanish cleric Reginaldo de Lizárraga. Lizárraga mentions that the "indios" (indigenous peoples) of the region made use of the puquios but does not specifically attribute their construction to either the Spanish or the indigenous people. [8] He also mentioned the much-diminished population of the indigenous people, their numbers a fraction of their pre-Columbian population due mostly to epidemics of European diseases. [9]

In the early 21st century Rosa Lasaponara, Nicola Masini, and their team of the Italian CNR (National Research Council), in cooperation with archaeologist Giuseppe Orefici, studied the Nazca puquios using satellite imaging. [10] They found evidence that the puquios system was once much more extensive. Scholars were able to see how the "puquios were distributed across the Nazca region, and where they ran in relation to nearby settlements – which are easier to date." Satellite imagery also revealed additional, previously unknown puquios in the Nazca drainage basin. [11] [12] The team that conducted this study concluded that the puquios are pre-Hispanic. [11] In addition, RPAS (Remotely Piloted Aircraft Systems), or drones, were used in 2016 to map and document five sample aqueduct systems in the Nazca region. [13]

A scientific method to precisely date the puquios has not been found, but, despite doubts, the "general consensus in 2017 was that the Nazca puquios were of "pre-Hispanic, Middle Nasca [c. 500 CE] origin...with subsequent Spanish and Republican modifications." [14] The pre-Columbian origin of the Nazca puquios does not contradict the likelihood that the origin of other puquios scattered sparsely around the Central and Southern Andes is Spanish. [15]

The technology of the puquios is similar to that of the qanats of Iran and Makhmur, Iraq, and other ancient filtration galleries known in numerous societies in the Old World and China, which appear to have been developed independently. [16] They are a sophisticated way to provide water from underground aquifers in arid regions.

Description of Nazca puquios

The coasts of Peru and Chile are exceptionally arid with agriculture only possible with irrigation. Precipitation is less than 25 millimetres (0.98 in) annually near the coast and increases only slowly at higher elevations in the inland Andes. Moreover, the Rio Grande de Nazca and its tributaries provide only sparse, seasonal water to the valleys on the Nazca region. In the past, precipitation was higher in some eras, possibly reaching an average of 200 millimetres (7.9 in) annually. The people of the Nazca culture may have built the puquios to adapt to a climatic transition from greater to lesser precipitation after 400 CE and enduring until about 1100 CE, followed by a wetter period which lasted until about 1450 CE at which time another drier era began that persisted into the 21st century. The Nazca culture flourished in the area from 200 BCE to 650 CE. [17] [18]

The Nazca puquios are found along five of the nine named feeder streams into the Rio Grande de Nazca. From south to north, the rivers with puquios are Las Trancas, Taruga, and the Nazca, which has two tributaries, the Tierras Blancas and the Aja. The sources of the rivers is in the Andes about 70 kilometres (43 mi) from the puquios. The puquios are equally distant from the Pacific Ocean at elevations of about 500 metres (1,600 ft). These small rivers are mostly dry except during the rainy season in the Andes from January to April, but have both underground and surface sections during the dry season. The inhabitants of the river valleys constructed the puquios as sources of water during the dry season. [19]

As of the year 2000, 43 puquios were still functioning of which 29 were near the city of Nazca in the valley of the Nazca river and its tributaries. The best known of the puquios are the Cantalloc Aqueducts. The largest pre-Columbian ruin of a settlement in the Nazca valley is Cahuachi, about 18 kilometres (11 mi) downstream from Nazca and near the famous Nazca Lines. Cahuachi is located along a course of the river in which it runs on the surface and thus the settlement did not depend upon puquios as did the settlements a few kilometers upstream. Many more puquios were likely built in pre-historic times in several other river valleys of the Rio Grande de Nazca system. Deep wells have replaced the abandoned puquios. [20] [21]

Two types of puquios are in the Nazca region. The first is the trench puquios which is a deep, narrow ditch, usually less than one meter in width and lined with rocks, which is open to the air. The second type is the gallery or subterranean puquios which is tunneled beneath the earth to tap the water from an aquifer. The water-bearing aquifer is typically about 10 metres (33 ft) underground, although it can be much closer to the surface. From the aquifer, the water flows through an underground tunnel downslope, emerging at the surface into a trench puquios for distribution to irrigation canals and for drinking and domestic purposes. The underground tunnel is typically about one meter square, although some of the tunnels reinforced with wood beams or in modern times with cement, can be 2 metres (6.6 ft) in height. Spaced along the route of the gallery puquios are vertical shafts, "eyes" or "ojos" in Spanish, which extend from the surface to the subterranean tunnel. The "ojos" permit access to the tunnel for maintenance and repair. [22] The funnel-shaped ojos are spaced from 10 metres (33 ft) to 30 metres (98 ft) apart. The length of the gallery (underground section) of the puquios ranges from a few meters to 372 metres (1,220 ft). The associated trench puquios may be as long as a kilometer. [23] [24]

History

Fifty-seven small rivers along the 1,500 kilometres (930 mi) long desert coastline of Peru empty into the Pacific Ocean. [25] The river valleys were cultivated by their pre-Columbian inhabitants by using irrigation, but most of the valleys had more dependable and greater surface water availability than the often-dry rivers of the Nazca region. Conversely, the agricultural society of the Nazca people flourished best where surface water was most scarce. The puquios were the technology that permitted a substantial population to exist in an intensely arid region. [26]

The Spanish first exerted control and settled in the Nazca region in the late 16th century. Under Spanish rule the area was noted for viticulture and the production of pisco, a brandy. In 1853, the English traveler Clements Markham described the Nazca valley as "the most fertile and beautiful spot on the coast of Peru." He described the puquios and said that "the fertility is due to the skill and industry of the ancient inhabitants. Under their care an arid wilderness was converted into a smiling paradise." [27]

In the 21st century many of the puquios are still in use but their use is threatened by industrial agriculture and production of exportable crops such as asparagus. Deep wells have replaced some of the puquios as a source of water and the number of local people with the expertise to maintain the puquios has diminished. The modest amounts of water supplied by the puquios is replenished every year by precipitation at the source of the rivers in the Andes, but the exploitation by deep wells of underground water sources for agriculture and a growing population may not be sustainable. [28]

Related Research Articles

<span class="mw-page-title-main">Nazca Lines</span> Geoglyphs in the Nazca Desert, Peru

The Nazca Lines are a group of geoglyphs made in the soil of the Nazca Desert in southern Peru. They were created between 500 BC and 500 AD by people making depressions or shallow incisions in the desert floor, removing pebbles and leaving different-colored dirt exposed. There are two major phases of the Nazca lines, Paracas phase, from 400 to 200 BC, and Nazca phase, from 200 BC to 500 AD. In the years leading up to 2020, between 80 and 100 new figures had been found with the use of drones, and archaeologists believe that there are more to be found.

<span class="mw-page-title-main">Nazca</span> Archaeological site and modern city in Peru

Nazca is a city and system of valleys on the southern coast of Peru. It is also the largest existing city in the Nazca Province. The name is derived from the Nazca culture, which flourished in the area between 100 BC and AD 800. This culture was responsible for the Nazca Lines and the ceremonial city of Cahuachi. They also constructed additional underground aqueducts, named puquios, in a regional system that still functions today. The first puquios are believed to have been built by the preceding Paracas culture.

<span class="mw-page-title-main">Qanat</span> Water management system using underground channels

A qanat or kārīz is a system for transporting water from an aquifer or water well to the surface, through an underground aqueduct; the system originated approximately 3,000 years ago in what is now Iran. The function is essentially the same across North Africa and the Middle East but the system operates under a variety of regional names: qanat or kārīz in Iran, foggara in Algeria, khettara in Morocco, falaj in Oman and the United Arab Emirates, karez in Afghanistan and Pakistan, uyūn in Saudi Arabia, etc. The largest extant and functional qanat systems are located in Iran, Afghanistan, Oman, the oases of Turfan region of China, Algeria, and Pakistan.

<span class="mw-page-title-main">Department of Ica</span> First-level administrative division on the southwestern coast of Peru

Ica is a department and region of Peru. It borders the Pacific Ocean on the west; the Lima Region on the north; the Huancavelica and Ayacucho regions on the east; and the Arequipa Region on the south. Its capital is the city of Ica.

Cahuachi, in Peru, was a major ceremonial center of the Nazca culture, based from 1 AD to about 500 AD in the coastal area of the Central Andes. It overlooked some of the Nazca lines. The Italian archaeologist Giuseppe Orefici has been excavating at the site for the past few decades. The site contains over 40 mounds topped with adobe structures. The huge architectural complex covers 0.6 sq. miles (1.5 km2) at 365 meters above sea level. The American archeologist Helaine Silverman has also conducted long term, multi-stage research and written about the full context of Nazca society at Cahuachi, published in a lengthy study in 1993.

<span class="mw-page-title-main">Nazca culture</span> Civilization in southern Peru, c. 100 BC–800 AD

The Nazca culture was the archaeological culture that flourished from c. 100 BC to 800 AD beside the arid, southern coast of Peru in the river valleys of the Rio Grande de Nazca drainage and the Ica Valley. Strongly influenced by the preceding Paracas culture, which was known for extremely complex textiles, the Nazca produced an array of crafts and technologies such as ceramics, textiles, and geoglyphs.

<span class="mw-page-title-main">Pre-Columbian art</span> Art of the Pre-Columbian civilizations

Pre-Columbian art refers to the visual arts of indigenous peoples of the Caribbean, North, Central, and South Americas from at least 13,000 BCE to the European conquests starting in the late 15th and early 16th centuries. The Pre-Columbian era continued for a time after these in many places, or had a transitional phase afterwards. Many types of perishable artifacts that were once very common, such as woven textiles, typically have not been preserved, but Precolumbian monumental sculpture, metalwork in gold, pottery, and painting on ceramics, walls, and rocks have survived more frequently.

<span class="mw-page-title-main">Paracas culture</span> Archaeological culture of Peru

The Paracas culture was an Andean society existing between approximately 800 BCE and 100 BCE, with an extensive knowledge of irrigation and water management and that made significant contributions in the textile arts. It was located in what today is the Ica Region of Peru. Most information about the lives of the Paracas people comes from excavations at the large seaside Paracas site on the Paracas Peninsula, first formally investigated in the 1920s by Peruvian archaeologist Julio Tello.

<span class="mw-page-title-main">Chincha culture</span> Native American culture

The Chincha culture was the culture of a Native Peruvian people living near the Pacific Ocean in south west Peru. The Chincha Kingdom and their culture flourished in the Late Intermediate Period, also known as the regional states period of pre-Columbian Peru. They became part of the Inca Empire around 1480. They were prominent as sea-going traders and lived in a large and fertile oasis valley. La Centinela is an archaeological ruin associated with the Chincha. It is located near the present-day city of Chincha Alta.

Aqueduct may refer to:

<span class="mw-page-title-main">Pica, Chile</span> Chilean oasis and town in Atacama Desert

Pica is a Chilean town and commune in Tamarugal Province, Tarapacá Region. Situated in the inland of the Atacama Desert on an oasis, Pica is famous for its small and unusually acidic limes known as Limón de Pica. The town has a communal hot spring with a surface temperature of 40 °C, which makes it a popular bath place in the middle of the desert. It has hotels and all basic services. The town lies four kilometers to the northeast of the oasis village of Matilla.

<span class="mw-page-title-main">Andén</span> Agricultural terraces in the Andes

An andén, Spanish for "platform", is a stair-step like terrace dug into the slope of a hillside for agricultural purposes. The term is most often used to refer to the terraces built by pre-Columbian cultures in the Andes mountains of South America. Andenes had several functions, the most important of which was to increase the amount of cultivatable land available to farmers by leveling a planting area for crops. The best known andenes are in Peru, especially in the Sacred Valley near the Inca capital of Cuzco and in the Colca Canyon. Many andenes have survived for more than 500 years and are still in use by farmers throughout the region.

<span class="mw-page-title-main">Palpa Province</span> Province in Ica, Peru

The Palpa Province is the smallest of five provinces of the Ica Region of Peru and the only landlocked province of the region. The capital of the province is the city of Palpa.

<span class="mw-page-title-main">Andean civilizations</span> Civilizations of South Americas Andes Mountains

The Andean civilizations were South American complex societies of many indigenous people. They stretched down the spine of the Andes for 4,000 km (2,500 mi) from southern Colombia, to Ecuador and Peru, including the deserts of coastal Peru, to north Chile and northwest Argentina. Archaeologists believe that Andean civilizations first developed on the narrow coastal plain of the Pacific Ocean. The Caral or Norte Chico civilization of coastal Peru is the oldest known civilization in the Americas, dating back to 3500 BCE. Andean civilization is one of the six "pristine" civilizations of the world, created independently and without influence by other civilizations.

<span class="mw-page-title-main">Aqueduct (water supply)</span> Structure constructed to convey water

An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term aqueduct is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term aqueduct also often refers specifically to a bridge carrying an artificial watercourse. Aqueducts were used in ancient Greece, ancient Near East, and ancient Rome. The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water.

<span class="mw-page-title-main">Cantalloc Aqueducts</span> Archaeological site in Peru

The Cantalloc Aqueducts are a series of aqueducts located 4 kilometres (2.5 mi) west of the city of Nazca, Peru, built by the Nazca culture. More than 40 aqueducts were built, which were used all year round. There are other aqueducts in different parts of the city.

<span class="mw-page-title-main">Pica Aquifer</span>

Pica Aquifer located in Tarapacá Region of northern Chile is one of the most important aquifers of Atacama Desert. The water of the aquifer is tapped by a system of underground aqueducts known as puquios to irrigate the oases of Pica and Matilla. The uppermost part of the aquifer is within loosely consolidated alluvial and aeolian sediments deposited in the Quaternary period. The recharge zone of Pica Aquifer is estimated to lie between ~3,000 and 4,000 meters above sea level.

Puquio de Núñez is a small oasis and orchard in the Atacama Desert of Chile. The oasis is irrigated by an underground canal, a puquio tapping Pampa del Tamarugal Aquifer. Puqui de Núñez lies about 10 kilometers south of the nearby oases of Matilla and Pica. As the puquios of Pica and Matilla tap the Pica Aquifer, it is thought that the hydraulic divide between the aquifers of Pampa del Tamarugal and Pica should be between Puquio de Núñez and Matilla.

<span class="mw-page-title-main">Pampa del Tamarugal Aquifer</span>

Pampa del Tamarugal Aquifer located in Tarapacá Region of northern Chile is one of the most important aquifers of Atacama Desert.

Huayuri, also called the Lost City of Huayuri, is a large pre-Columbian archaeological site which flourished from 1150 to 1450 CE in the Late Intermediate Period of Peru. Huayuri is located in the Peruvian coastal desert in Ica Region. Its prominence was probably dependent upon an climatic phase in which the area received greater precipitation than at earlier and later periods. The site may have been abandoned in the 16th century because of water shortages, conflict with the expanding Inca Empire, or epidemics of European diseases. The town of stone houses was located in a ravine between two mountain ridges, a location possibly dictated by a need for defense. Archaeological evidence indicates Huayari relied upon rainfall harvesting for its drinking water and some of the irrigated agriculture the town needed for the subsistence of the inhabitants.

References

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  3. Barnes 1992, p. 111.
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  14. Lane 2017, p. 468.
  15. Lane 2017, p. 467.
  16. Ponce-Vega, p. 280
  17. Šedina, Jaroslav; Hůlková, Martina; Pavelka, Karel; Pavelka, Karel Jr (2019). "RPAS for documentation of Nazca aqueducts". European Journal of Remote Sensing. 52 (sup 1): 174–181. Bibcode:2019EuJRS..52S.174S. doi: 10.1080/22797254.2018.1537684 . CC-BY icon.svg Text was copied from this source, which is available under a Creative Commons Attribution 4.0 International License.
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  20. Proulx 1999.
  21. Lane 2017, p. 471.
  22. Lane 2017, pp. 469–470.
  23. Schreiber and Lancho Rojas 1995, p. 232.
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  25. Pozorski, Thomas; Pozorski, Shelia (Summer 2005). "Architecture and Chronology at the Site of Sechin Alto, Casma Valley, Peru". Journal of Field Archaeology. 38 (2): 1–2.. Downloaded from Project MUSE.
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  27. Schreiber and Lancho Rojas 1995, pp. 229–230.
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Bibliography