Types of Field System
Although agriculture was practised earlier, the earliest recognisable field systems in England are neolithic. Cairnfields, which are pre-historic in date, are found in upland areas. They contain scattered stones and boulders and originated in surface clearance for agriculture.
So called Celtic fields can date from the Bronze Age through to the early Middle Ages. These fields are typically small and rectangular. They are frequently coaxial - that is they form a system in which the boundaries of adjacent fields make a series of long, roughly parallel lines. The extensive coaxial field systems established by the Romans are described as centuriation.
Open fields were very large fields in which many individual farmers cultivated their own strips. These were a frequently found feature in the Midlands but less so in the South-east and West country. No documents survive which explain how and when the change to open fields took place, but signs of the change are apparent in some areas in the 8th, 9th or 10th centuries. The use of open fields began to decline in the 15th century. The landscape of open fields was frequently called "champion country".
In England, enclosure of open fields during the 18th and 19th century produced field systems with larger rectangular fields, often with blackthorn hedges. Adjacent areas were often enclosed at different times, leading to a change in orientation of the field systems between the two areas. The pattern of ridge and furrow will often reveal the layout of the original open fields.
In parts of England where enclosure took place early (or which were never enclosed), fields are often small and have an irregular shape, sometimes described as "pocket handkerchief".
Recent changes of agricultural practice are eliminating old field boundaries, particularly by removing hedges, to produce much larger fields reminiscent of traditional open fields.
In the Czech Republic undertook a study of medieval field systems Ervín Černý.
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