The dry ecosystems (desert, arid shrubland, xeromorphic forest and Mediterranean shrubland) gain more soil organic carbon than the other ecosystems in the scenario with no change in temperature, because of reduced water stress on production in the dry regions.
(The dry ecosystems; arid; shrubland, xeromorphic forest and Mediterranean shrubland)
The dry ecosystems
arid
shrubland, xeromorphic forest and Mediterranean shrubland