Resource management and especially food production is a bit different in the North. Properties of resources are more relevant. You need to care about temperature dependence and not all crops are suitable for this climate. Protein is easier to get because of fish stocks and big herds of reindeer but farming is limited, at least in fair and harsh climate. Trade values are different too and you will pay more for rare fruits than for fish. All details and values you can find in our wiki to makes things more transparent. :)

引用自 Tom Sawyer：

All details and values you can find in our wiki to makes things more transparent. :)

Can you provide the wiki link please? Google doesn't reveal it.
Which crops grow best at lower overall temperatures may be obvious to a scandinavian farmer but most of us have no idea how crops actually being grown.