Comparison in the relative percentage (shaded color) and percentage ubiquity (solid color) of foxtail millet and common millet in North China at 9~6 and 6~5 ka cal BP.

<p>Comparison in the relative percentage (shaded color) and percentage ubiquity (solid color) of foxtail millet and common millet in North China at 9~6 and 6~5 ka cal BP.</p

Ubiquity of the 5 plant groups in North China between 33 and 5 ka cal BP.

<p>Ubiquity of the 5 plant groups in North China between 33 and 5 ka cal BP.</p

Locations of the archaeological sites in China from which archaeobotanical data were used in the current analysis.

<p>(map modified from Grass GIS; <a href="https://grass.osgeo.org/" target="_blank">https://grass.osgeo.org/</a>).</p

Comparison of the ubiquity for several cereals, weeds, and edible wild plants in North China between 33 and 5 ka cal BP.

<p>Comparison of the ubiquity for several cereals, weeds, and edible wild plants in North China between 33 and 5 ka cal BP.</p

Relative percentage of the 5 plant groups in North China between 33 and 5 ka cal BP.

<p>Relative percentage of the 5 plant groups in North China between 33 and 5 ka cal BP.</p

Ubiquity of the 5 plant groups in North China between 33 and 5 ka cal BP.

<p>Ubiquity of the 5 plant groups in North China between 33 and 5 ka cal BP.</p

Temporal changes in the ubiquity of several important grasses used in North China in the past.

<p>Temporal changes in the ubiquity of several important grasses used in North China in the past.</p

Relative percentage of genus <i>Oryza</i> plants between 9 and 5 ka cal BP.

<p>Relative percentage of genus <i>Oryza</i> plants between 9 and 5 ka cal BP.</p

Ubiquity of some important plant species used in South China between 14 and 5 ka cal BP.

<p>Ubiquity of some important plant species used in South China between 14 and 5 ka cal BP.</p

Stages in the macro-process of plant subsistence from the Upper Paleolithic to the Middle Neolithic in China.

<p>Stages in the macro-process of plant subsistence from the Upper Paleolithic to the Middle Neolithic in China.</p