Evaluation of urban hydroponic systems
Introduction
La Ligua is a commune and city located in the Valparaíso Region, in the central area of Chile, capital of the province of Petorca. It is located 152 kilometers north of Santiago, the country's capital, and 99 kilometers north of Valparaíso, the regional capital.
It integrates together with the communes of Cabildo "Cabildo (Chile)"), La Calera "La Calera (Chile)"), Hijuelas, La Cruz "La Cruz (Chile)"), Nogales "Nogales (Chile)"), Papudo, Petorca, Puchuncaví, Quillota, Quintero, Zapallar, Calle Larga, Catemu, Llaillay, Los Andes "Los Andes (Chile)"), Panquehue, Putaendo, Rinconada "Rinconada (Chile)"), San Esteban "San Esteban (Chile)"), San Felipe "San Felipe (Chile)"), Santa María "Santa María (Chile)"), Limache, Olmué, Quilpué and Villa Alemana are electoral district No. 6 and belong to the VI senatorial constituency (Valparaíso).
Place names
According to the founding shield, it is established that it derives from the Mapuche word Liwen, which means Radiance or Dawn.
Other hypotheses suggest that it may come from the Mapudungun lliwa, fortune teller,[2] also from the Quechua millma whose meaning would be Lana or from the Aymara millwa, with the same meaning as the previous one.[3].
History
First human occupations
There are records that La Ligua began to be inhabited more or less 8 millennia ago, it is theorized that it could have received groups of indigenous people who came from the current countries: Argentina, Peru and Bolivia. However, the Chiledungun or Chile Dgu language described by Father Luis de Valdivia is considered an isolated language not related to the language families that exist in these countries, which is not consistent with this theory. As additional background we find that the Reche name for the southern cross is Melirito or Meliriti, which in the Chilean Dgu language means "the four in front or above", from the calculation of the azimuth of said constellation 7 millennia ago it can be assumed that it received its name (the four above) at this time. A time that coincides with the end of the last ice age, constituting a linguistic historical vestige that accounts for the antiquity of that people in the country, however the favorable climatic period that the central Andes area experienced at this time and the very important linguistic differences place the origin of this culture in a mystery; Among the archaeological complexes, the Molle culture, Las Ánimas Complex, Aymaras stand out; The people who inhabited the central area of Chile and who shared a language from the Limarí Valley to Chiloé, called themselves Reche. Currently many characteristics of this group survive in the population of La Ligua.[4].