Land-use patterns in Austria change from Alpine to non-Alpine regions. Approximately one-tenth of Austria is barren or unproductive, that is, extremely Alpine or above the tree line. Just over 40% of Austria is covered by forests, the majority of which is in Alpine regions. Less than one-fifth of Austria is arable and suitable for conventional agriculture. The percentage of arable land in Austria increases in the East as the country becomes less alpine. More than one-fifth of Austria is pasture and meadow located at varying altitudes. Almost half of this grassland consists of high Alpine pastures.