It indicates that there land is not good for farming. Since Canada is cold most of the year, the ground is going to be hard and not good for farming.
It is characterized primarily by a paradox. A paradox is a statement or proposition that notwithstanding sound or apparently sound reasoning from acceptable premises that mains to a conclusion that appears pointless, logically intolerable or self-contradicting or seemingly absurd or self-contradictory statement or offer that when examined or clarified may prove to be well instituted or true.
It provided many resources like better quality for cloth.