ANCIENT SAND RIDGES

arc-related spreading ocean ridges

area along radial sand ridges

barkhan ridges

between ridges

combination sowing on ridges with mulching

completely mulched alternating narrow and wide ridges with furrow planting

Decorative Ridges of Pottery Modellings

DOUBLE RIDGES

double ridges mulched with wide plastic film

double ridges rainwater harvesting

double ridges stage

double ridges with full film coverage

Double-ridges process

double-ridges waveguide

Entire membrane double ridges trench sowing

Longitudinal Ridges

modern tidal sand ridges

Mountain Ridges

multispreding ridges