Black carbon (BC) aerosol is esthetically displeasing as it is responsible for the brown appearance of urban hazes.I......

通过测定土培条件下净光合速率及其相关参数的日进程，发现胡杨净光合速率的最大值出现在中午辐射最强的时间；胡杨光饱和点高达２８００μｍｏｌｍ－２ｓ－１，说明......