Reference 1: Forested area (km2), Source and % of land area.
Reference 2: Russia, Canada, Brazil, United States, China, Democratic Republic of the Congo, Australia, Argentina, Indonesia, India, Mexico, Peru, Sudan (including South Sudan), Mozambique, Colombia, Angola, Bolivia, Venezuela, Myanmar (Burma), Zambia, Tanzania, Sudan, Sweden, Papua New Guinea, Spain, Zimbabwe, Japan, France including overseas, Finland, Central African Republic, Gabon, Congo, Cameroon, Turkey, Malaysia, Paraguay, Laos, Chile, Guyana, South Sudan, Suriname, Thailand, Madagascar, Mali, Vietnam, Botswana, Chad, Ecuador, Germany, Niger, Nigeria, Iran, Guatemala, Italy, Ukraine, Mongolia, Norway, Cambodia, Morocco, Poland, South Africa, Senegal, New Zealand, Belarus, Namibia, North Korea, Philippines, Somalia, Greece, Burkina Faso, Honduras, Guinea, South Korea, Romania, Benin, Kazakhstan, Nicaragua, Uganda, Panama, Pakistan, Algeria, Turkmenistan, Austria, Ethiopia, Nepal, Bulgaria, Malawi, Portugal, Liberia, Côte d'Ivoire, Latvia, United Kingdom, Georgia, Sierra Leone, Cuba, Saudi Arabia, Czech Republic, Bosnia and Herzegovina, Croatia, Bhutan, Ghana, Estonia, Solomon Islands, Taiwan, Lithuania, Serbia, Guinea-Bissau, Tunisia, Costa Rica, Slovakia, Uzbekistan, Sri Lanka, Hungary, Belize, Equatorial Guinea, Eritrea, Dominican Republic, Kenya, Oman, Slovenia, Switzerland, Albania, Macedonia, Fiji, Azerbaijan, Bangladesh, Kyrgyzstan, Iraq, Togo, Timor-Leste, Ireland, Uruguay, Belgium, Montenegro, Denmark, Bahamas, Gambia, Syria, Yemen, Vanuatu, Tajikistan, Netherlands, Jamaica, Moldova, Rwanda, United Arab Emirates, El Salvador, Armenia, Brunei, Mauritania, Trinidad and Tobago, Libya, Cyprus, Afghanistan, Israel, Lebanon, Burundi, Samoa, Iceland, Jordan, Luxembourg, Cape Verde, Egypt, Micronesia, Federated States of, Mauritius, Dominica, Haiti, Seychelles, Palau, Sao Tome and Principe, Swaziland, Saint Lucia, Andorra, Saint Vincent and the Grenadines, Antigua and Barbuda, Palestine, Lesotho, Liechtenstein, Djibouti, Kuwait, Comoros, Saint Kitts and Nevis, Grenada, Tonga, Tuvalu, Barbados, Kiribati, Singapore, Maldives, Bahrain, Malta, San Marino and Qatar.
Source: http://en.wikipedia.org/wiki/List_of_countries_by_forest_area
Reference 2: Russia, Canada, Brazil, United States, China, Democratic Republic of the Congo, Australia, Argentina, Indonesia, India, Mexico, Peru, Sudan (including South Sudan), Mozambique, Colombia, Angola, Bolivia, Venezuela, Myanmar (Burma), Zambia, Tanzania, Sudan, Sweden, Papua New Guinea, Spain, Zimbabwe, Japan, France including overseas, Finland, Central African Republic, Gabon, Congo, Cameroon, Turkey, Malaysia, Paraguay, Laos, Chile, Guyana, South Sudan, Suriname, Thailand, Madagascar, Mali, Vietnam, Botswana, Chad, Ecuador, Germany, Niger, Nigeria, Iran, Guatemala, Italy, Ukraine, Mongolia, Norway, Cambodia, Morocco, Poland, South Africa, Senegal, New Zealand, Belarus, Namibia, North Korea, Philippines, Somalia, Greece, Burkina Faso, Honduras, Guinea, South Korea, Romania, Benin, Kazakhstan, Nicaragua, Uganda, Panama, Pakistan, Algeria, Turkmenistan, Austria, Ethiopia, Nepal, Bulgaria, Malawi, Portugal, Liberia, Côte d'Ivoire, Latvia, United Kingdom, Georgia, Sierra Leone, Cuba, Saudi Arabia, Czech Republic, Bosnia and Herzegovina, Croatia, Bhutan, Ghana, Estonia, Solomon Islands, Taiwan, Lithuania, Serbia, Guinea-Bissau, Tunisia, Costa Rica, Slovakia, Uzbekistan, Sri Lanka, Hungary, Belize, Equatorial Guinea, Eritrea, Dominican Republic, Kenya, Oman, Slovenia, Switzerland, Albania, Macedonia, Fiji, Azerbaijan, Bangladesh, Kyrgyzstan, Iraq, Togo, Timor-Leste, Ireland, Uruguay, Belgium, Montenegro, Denmark, Bahamas, Gambia, Syria, Yemen, Vanuatu, Tajikistan, Netherlands, Jamaica, Moldova, Rwanda, United Arab Emirates, El Salvador, Armenia, Brunei, Mauritania, Trinidad and Tobago, Libya, Cyprus, Afghanistan, Israel, Lebanon, Burundi, Samoa, Iceland, Jordan, Luxembourg, Cape Verde, Egypt, Micronesia, Federated States of, Mauritius, Dominica, Haiti, Seychelles, Palau, Sao Tome and Principe, Swaziland, Saint Lucia, Andorra, Saint Vincent and the Grenadines, Antigua and Barbuda, Palestine, Lesotho, Liechtenstein, Djibouti, Kuwait, Comoros, Saint Kitts and Nevis, Grenada, Tonga, Tuvalu, Barbados, Kiribati, Singapore, Maldives, Bahrain, Malta, San Marino and Qatar.
Source: http://en.wikipedia.org/wiki/List_of_countries_by_forest_area