在辽宁彰武县阿尔乡的林海沙丘间,经常能看到一个护林员骑马巡逻的身影。这名护林员叫李东魁,52岁的他已默默守护这片森林30年,行程超过23万公里。李东魁管护的8500亩森林,地处科尔沁沙地南缘,是三北防护林的一部分,也是阻击风沙南侵的重要屏障。作为一名护林员,李东魁不仅要制止在森林里垦荒或乱砍滥伐等毁林行为,还要承担森林防火和病虫害预警任务。由于林区都是沙地,而且范围极广,崎岖难 In Linhai sand dunes of al-Qiru, Zhangwu County, Liaoning Province, a canine rider is often seen riding a patrol. The Ranger, named Li Dongkui, 52-year-old had silently guarded the forest for 30 years and traveled more than 230,000 kilometers. The 8,500-mu forest managed by Li Dongkui is located on the southern margin of Horqin Sandy Land and is part of the Three-North Shelter Forest. It is also an important barrier blocking the southward infiltration of sandstorms. As a ranger, Li Dongkui not only has to stop deforestation such as reclamation or deforestation in the forest, but also undertakes the task of early warning of forest fires, pests and diseases. As the forest is sandy, and a very wide range, difficult