Longquan kilns

Longquan kilns
Name	Longquan celadon
Native name	龍泉窯
Location	Longquan, Zhejiang, China
Period	Northern Song to Ming dynasty
Materials	Porcelain, celadon glaze
Notable for	Green-glazed ceramics, jade-like glaze

Longquan kilns are a historically significant group of Chinese ceramic kilns famed for producing jade-green celadon wares from the Song to the Ming dynasties. Developed in the region around Longquan, Zhejiang during the Northern Song dynasty, their wares became central to maritime trade networks linking China, Korea, Japan, and Southeast Asia and influenced potters across Asia and Europe. Archaeological finds and court records tie Longquan production to major political centers such as Hangzhou and export hubs like Quanzhou.

History

The origins trace to technological and stylistic experiments in the late Tang dynasty and consolidation during the Northern Song dynasty when ceramic innovation accelerated alongside developments at Ding kilns, Ru ware kilns, and Yaozhou kilns. During the Southern Song dynasty the Longquan industry expanded under the cultural hegemony of Lin'an (Hangzhou), supplying both elite households and provincial markets. In the Yuan dynasty Longquan wares reached peak export via ports controlled by Quanzhou and Zayton merchants, and the kilns adapted to tastes influenced by contacts with Arab merchants, Persian traders, and Southeast Asian sultanates. Under the Ming dynasty the site experienced shifts as imperial patronage favored porcelain from Jingdezhen; nonetheless Longquan continued producing popular wares until decline in the late Ming and collapse amid the upheavals of the Qing conquest and peasant revolts.

Location and Archaeology

The principal production centers were in southern Zhejiang province near Longquan (region), with major kiln sites at Huzhen, Gaoqiao, and Laohuzui. Excavations by teams from institutions such as Zhejiang University and the Chinese Academy of Social Sciences have revealed kiln furniture, wasters, and workshop layouts comparable to other major sites like Jingdezhen and Yaozhou. Finds in shipwrecks excavated near Nanhai No. 1 and the Belitung shipwreck link Longquan ceramics to maritime routes reaching Sri Lanka, Sumatra, Ceylon, Persian Gulf markets, and artifacts in collections at the British Museum, Metropolitan Museum of Art, Louvre, and Tokyo National Museum corroborate wide distribution. Scientific analyses using methods from thermoluminescence dating and X-ray fluorescence tie glaze chemistry to local raw materials from the Longquan basin.

Production Techniques and Materials

Longquan potters used a high-iron stoneware body fired in large dragon kilns influenced by designs found at Anagama and multi-chambered kilns used in Jingdezhen. Clay sources included local porcellanous clay and iron-rich clays similar to those used at Yue ware centers. Firing temperatures typically reached between 1250–1300 °C as measured in comparative studies at Institute of Archaeology (CASS). Kiln stacking, saggar use, and controlling reducing atmospheres were critical techniques paralleling practices at Ding kilns and influenced by innovations from Cizhou ware craftsmen. Kiln furniture, spurs, and glazing slips display technological parallels with Korean Goryeo celadon workshops.

Glaze and Aesthetic Characteristics

The hallmark jade-like, translucent green glaze—often described as “olive,” “sea-green,” or “bluish-green”—results from iron oxide in a reduction atmosphere, a phenomenon also seen in Goryeo celadon and some Thai Sawankhalok wares. Surface effects include fine crackle grounds and “oxblood” reduction spots akin to features at Sancai and Jun ware experiments. Typical glazes range from thick, flowing coats pooling in carved designs to thin, glassy sheens reminiscent of Ru ware aesthetics admired by court connoisseurs such as Su Shi and collectors associated with the Southern Song literati. Technical studies comparing spectral data from the National Palace Museum (Taipei) and Palace Museum, Beijing highlight consistent flux proportions and local feldspathic minerals.

Types and Forms Produced

Longquan workshops produced a wide repertoire: large storage jars, basins, ewers, plates, stem bowls, lobed dishes, censers, and incense burners paralleling form types from the Tang dynasty through the Ming dynasty. Specialized products included carved and molded wares with floral motifs rooted in Buddhist iconography and Daoist ritual paraphernalia used at temples such as Lingyin Temple. Decorative techniques encompassed incising, combing, and shallow relief akin to methods seen at Jizhou kilns and Cizhou kilns. Courtly shapes echoed imperial tastes recorded in Ming palace inventories kept at the Imperial Household Department.

Trade, Distribution, and Influence

Longquan celadon became one of the most widely traded Chinese ceramics during the Song dynasty and Yuan dynasty maritime expansions. Exports reached Japan where they influenced Muromachi period tea culture and were coveted by samurai and shogunal elites; in Korea they impacted Goryeo production and were later imitated in local kilns. Southeast Asian polities, including Majapahit and the Srivijaya successor states, incorporated Longquan forms into elite consumption and ritual contexts. European collections, beginning with Portuguese and Dutch VOC agents, later introduced Longquan aesthetics to collectors in Lisbon, Amsterdam, and London, affecting European porcelain experiments culminating in workshops such as Meissen.

Decline and Revival

Competition from Jingdezhen porcelain, changing imperial policies under the Ming dynasty and disruptions during the Ming–Qing transition precipitated a decline by the 17th century. Local interruptions due to resource depletion and social unrest closed many kilns, though some continuity remained in rural workshops. Revival efforts in the 20th and 21st centuries involve state and private initiatives linking the contemporary Longquan ceramics industry to tourism, museology at institutions like the Longquan Museum of Celadon, and craft preservation programs promoted by the Ministry of Culture and Tourism of the PRC; artisan exchanges and archaeological conservation have re-established Longquan-style celadon in museums and studio pottery movements worldwide including influences seen in William Chaffers-era collections and modern ceramicists inspired by Bernard Leach.

Category:Chinese pottery