[Objective] The aim was to screen strains producing alkaline protease from soil and study the conditions for enzyme production.[Method] Eight strains producing
[Objective] The aim was to study the dynamic variation of vegetation and its response to economic factors in the border area of Heilongjiang Province.[Method] B
[Objective] The aim was to study ecological sensitivity in Jinjie mining area. [Method] Taking Jinjie mining area as study object, based on RS and GIS technolog