M. Rosch, THE HISTORY OF CROPS AND CROP WEEDS IN SOUTH-WESTERN GERMANY FROM THENEOLITHIC PERIOD TO MODERN TIMES, AS SHOWN BY ARCHAEOBOTANICAL EVIDENCE, Vegetation history and archaeobotany, 7(2), 1998, pp. 109-125
The results of more than 100 archaeobotanical investigations from sout
h-western Germany have been arranged into chronological groups and ana
lyzed with a spreadsheet to obtain presence data and the numbers of ta
xa present in the various time periods. They show an increase in the n
umber of plant taxa cultivated in gardens since the Roman period, a de
crease in the crops that were the earliest to be cultivated, especiall
y emmer, and an increase of spelt, rye and oats in the course of time.
New crop weeds appear, including an increasing number of southern pla
nts originating from open vegetation. This is more likely to be a resu
lt of the intensification of agriculture than from increased human mob
ility. The crop weeds, grouped together according to their requirement
s for soil nutrients, show increasing soil acidification through the c
ourse of time.