A clue….
DeepPlough

An interesting English Heritage document, Heritage Crime Research: The Size of the Problem seeks to evaluate the damage caused by various crimes and in our particular sphere of interest (scheduled monuments and other designated historic sites) simple antisocial behaviour is the single most common heritage crime. Illegal detecting and off-roading are also problems but metal theft is less common than it is with other types of heritage assets.

However, viewing damage through the narrow prism of heritage crime can distort the reality and none of the crimes quoted in that research document cause anything like as much damage as is caused legally by agriculture, as highlighted in another English Heritage document from 2003 – Ripping up History.

Some quotes:

Modern ploughing has done more damage in six decades than traditional agriculture did in the preceding six centuries. Among the sites being actively ploughed are nearly 3000 scheduled monuments, sites recognised as being of national importance to our heritage.

“We are, quite literally, ripping up our history.

Farmers are not at fault.They have done what society has asked them to do and past agricultural policy has dictated. However, if this important inheritance is to be better protected in future, it is essential that government, archaeologists and farmers now work together to find a new and more sensitive approach.

Over 10,000 wetland monuments are estimated to have suffered damage in the last 50 years …….. An estimated 94% of East Midlands ridge and furrow has been destroyed …….. Ploughing is damaging over 100 Anglo-Saxon cemeteries in Norfolk and Suffolk …….. Fewer than 10 out of 1200 burial mounds in Essex now survive as earthworks …….. Over a quarter of the nationally important scheduled monuments in the Stonehenge and Avebury World Heritage Site are under damaging arable cultivation.“

At that time EH suggested 3 key actions were needed: an expansion of Environmental Stewardship schemes, further protection legislation and further policies to lessen the amount of grassland over protected archaeology being turned over to arable cultivation. That was almost ten years ago and some progress towards those aims has been made, particularly a big expansion of the Stewardship schemes (70% of agricultural land is now in schemes). However, perhaps the best hope for greater protection in the next few years will come from something that wasn’t specified back then: the Government is to move towards paying farmers to adopt “min til” (minimum tillage) – the low impact farming system that replaces ploughing.