无耕地之国 瑙鲁共和国是太平洋上的小岛国,面积只有22平方公里,人口约9000人。全境占80％的面积覆盖着磷酸盐,却没有可供耕种的土地。因此,不得不从国外进口泥土。 无河之国 欧洲圣马力诺是位于意大利境内的一个国中之国。面积61平方公里,人口2.3万人,全境地处高山之下,尽管秋季多 The country of no-farmland The Republic of Nauru is a small island nation on the Pacific Ocean with an area of ​​only 22 square kilometers and a population of about 9,000. Over 80% of the area is covered with phosphate, but there is no land available for cultivation. Therefore, we have to import soil from abroad. The riverless country of Europe San Marino is a country within Italy. An area of ​​61 square kilometers, population 23000 people, all located in the mountains, despite the fall more