Division of Geography SciencesDepartment of Earth SciencesNational Natural Science Foundation of ChinaThe approval projects on field of environmental sciences (1991)

49171058D012249171057D012249171059D012449171砚双)D012549171061D012549171062D012549101015DO125A quantitative researeh on the anthroPologlcal eflb=t 5 in the Pro溉5 ofsandyland desertilicationYang GenshengLanZhou Institute of Desert Researell,Chinese Academy of Scien璐 1992.01一1995.12Research of thet心tment dlr。沈ion of the叨一vironrnent in the land develo卜ment一taking the large and the smalX止gkai lakes as examplesZhang DajunHeilongj边ng Scient饭e Researcn Institute of Env加nmental…