在科尔沁沙地深处,有一片占地5400亩的绿色森林——乌云森林,它是日本国沙漠植林协会会长、日本国地方政府退休干部菊地丰先生为了感谢和报答库伦旗人民对日本孤儿立花珠美(蒙语:乌云)的养育之恩,个人无偿投资由库伦旗林业局规划设计组织实施的,以治沙造林为主,农牧林副综合开发,集治沙、科研、生态环境教育、沙漠草原旅游观光于一体的综合性高标准围栏治沙工程。目的是改善生态环境,防治土地荒漠化,造福科尔沁人民。 In the depths of Horqin Sandy Land, there is an area of ​​5400 acres of green forest - dark forest, it is Japan’s National Desert Plantation Association, Japan’s retired cadres of local government, Mr. Kikuchi To thank and repay the people of Kulun flag to Japanese orphans Tachibana beauty (Mongolian: dark clouds) of nourishing grace, individual investment by Kulun Qi Forestry Bureau planning and design and implementation of the organization to control the main afforestation, agriculture and animal husbandry, vice comprehensive development, integrated governance sand, scientific research, ecological and environmental education , Desert steppe tourism and sightseeing in one of the comprehensive high standard fence sand control project. The purpose is to improve the ecological environment, prevent desertification and benefit the Horqin people.