section_path: Geography
section_name: Geography
paragraph_text: Geography
  
  The state extends over an area of about five-sixths (70,273 km 2 or 27,133 sq mi) of the island of Ireland (84,421 km 2 or 32,595 sq mi), with Northern Ireland constituting the remainder. The island is bounded to the north and west by the Atlantic Ocean and to the northeast by the North Channel. To the east, the Irish Sea connects to the Atlantic Ocean via St George's Channel and the Celtic Sea to the southwest.
  
  The western landscape mostly consists of rugged cliffs, hills and mountains. The central lowlands are extensively covered with glacial deposits of clay and sand, as well as significant areas of bogland and several lakes. The highest point is Carrauntoohil (1,038.6 m or 3,407 ft), located in the MacGillycuddy's Reeks mountain range in the southwest. River Shannon, which traverses the central lowlands, is the longest river in Ireland at 386 kilometres or 240 miles in length. The west coast is more rugged than the east, with numerous islands, peninsulas, headlands and bays.
  
  Ireland is one of the least forested countries in Europe. Until the end of the Middle Ages, the land was heavily forested. Native species include deciduous trees such as oak, ash, hazel, birch, alder, willow, aspen, elm, rowan and hawthorn, as well as evergreen trees such Scots pine, yew, holly and strawberry trees. The growth of blanket bog and the extensive clearing of woodland for farming are believed to be the main causes of deforestation. Today, only about 10% of Ireland is woodland, most of which is non-native conifer plantations, and only 2% of which is native woodland. The average woodland cover in European countries is over 33%. According to Coillte, a state-owned forestry business, the country's climate gives Ireland one of the fastest growth rates for forests in Europe. Hedgerows, which are traditionally used to define land boundaries, are an important substitute for woodland habitat, providing refuge for native wild flora and a wide range of insect, bird and mammal species. It is home to two terrestrial ecoregions: Celtic broadleaf forests and North Atlantic moist mixed forests.
  
  Agriculture accounts for about 64% of the total land area. This has resulted in limited land to preserve natural habitats, in particular for larger wild mammals with greater territorial requirements. The long history of agricultural production coupled with modern agricultural methods, such as pesticide and fertiliser use, has placed pressure on biodiversity.