사막 3가지, 초원 3가지, 숲 3가지 유형

a tropical desert in Morocco

a temperate desert in southeastern California, with saguaro cactus, a prominent species in this ecosystem

a cold desert, Mongolia’s Gobi Desert

These climate graphs track the typical variations in annual temperature (red) and pre-

cipitation (blue) in tropical, temperate, and cold deserts.

출처 : Environmental Science by G. Tyler Miller, Scott Spoolman (15th) (2016) National Geographic - 138page

savanna (tropical grassland) in Kenya, Africa, with zebras grazing.

prairie (temperate grassland) in the U.S. state of Illinois.

arctic tundra (cold grassland) in Alaska’s Arctic National Wildlife Refuge in summer.

These climate graphs track the typical variations in annual temperature (red) and pre-

cipitation (blue) in tropical, temperate, and cold (arctic tundra) grasslands.

출처 : Environmental Science by G. Tyler Miller, Scott Spoolman (15th) (2016) National Geographic - 140page

the closed canopy of a tropical rain forest in Costa Rica.

a temperate deciduous forest near hamburg, Germany in autumn.

a northern coniferous forest in Canada’s Jasper National park.

These climate graphs track the typical variations in annual temperature (red) and pre-

cipitation (blue) in tropical, temperate, and cold (northern coniferous, or boreal) forests

출처 : Environmental Science by G. Tyler Miller, Scott Spoolman (15th) (2016) National Geographic - 142page