The meaning of "bear critically on"

Could you please tell me what the meaning of "bear critically on " in this following sentence.

"He recognises that the separation of subjective and objective ways of knowing bears critically on the study of landscape. He proposes therefore to incorporate both into an approach drawing upon the traditions of other humanities which examine the expressions of human creativity in art and artifice, specifically biography. "

I feel this phrase means "the separation of subjective and objective ways of knowing " brings bad effects to the study of landscape, but I don't know if my understanding is correct.

Thanks a lot!