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thorn forest
A thorn forest is a dense, scrublike vegetation characteristic of dry subtropical and warm temperate areas with a seasonal rainfall averaging . This vegetation covers a large part of southwestern North America and southwestern Africa and smaller areas in Africa, South America, and Australia. In South America, thorn forest is sometimes called ''Caatinga'', and consists primarily of small, thorny trees that shed their leaves seasonally. Trees typically do not exceed in height, usually averaging between tall. Thorn forest grades into savanna woodland as the rainfall increases and into desert as the climate becomes drier.
==See also==
*Arid Forest Research Institute (AFRI)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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