以少数树种和草原为主的针叶林横跨北半球的广大地区。这里:蒙古北部。 (IMAGE) University of Göttingen Caption 以少数树种和草原为主的针叶林横跨北半球的广大地区。这里:蒙古北部。 Credit P Weigelt Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.