What determines the line between the tundra and taiga?

The most common defining demarcation is that tundra is where the subsoil is permafrost. Having permafrost subsoil hinders the kind of root growth needed for the kinds of dense forests found in the taiga. read more

The most common defining demarcation is that tundra is where the subsoil is permafrost. Having permafrost subsoil hinders the kind of root growth needed for the kinds of dense forests found in the taiga. This is why tundras have very few or no trees. Low light and short growing seasons may also play some role. read more

The tundra and taiga represent the two coldest land biomes on the planet, but they have different precipitation levels, and the tundra has permafrost. These two factors cause sharp differences between the plant life of the two biomes, and the resulting local animal populations. read more

Tundra and Taiga are the two coldest land biomes on the planet Earth. The major difference between tundra and taiga are summarized below in the pic Tundra and taiga biomes together make up the majority of Canada, Scandinavia, Alaska and northern Russia. read more