desertification
Soil ‘leaching’
Minerals…
Soil ‘leaching’
that come to the surface.
Drought
overgrazing
Nomadic herding
Subsistence agriculture
Marginal land
oasis
10
CreditsMrLoPeZ Africa Week 1• spacetimecurves.blogspot.com• permaculture.org.au• sas.usace.army.mil• waterquality.montana.edu• fnps.org• article.wn.com• cartoonstock.com• dell.beforeitsnews.com• thecontaminated.com• newsrealblog.com
04/10/2023 http://ramonlopez2.pbworks.com