Such problems as desertification 、 soil erosion 、 debris flow 、 landslide 、 garbage disposal 、 changes in ecological and geological environment 、 dispose of radioactive nuke rubbish 、 protection of famous historic and cultural sites are researched in this field 研究课题涉及到:沙漠化、水土流失、泥石流、滑坡、垃圾填埋处理、生态和地质环境的变迁、放射性核废料的处理和名胜古迹的保护等。