Instead of just a windbreak, you have a windbreak that is also producing a crop of quality saw logs. In New Zealand these are called 'timberbelts'. Farming within the field continues as normal. Crops and farm buildings are sheltered from strong winds. On good farmland, where fields are tile drained and the farmer wants to keep the drains running, it is best to have a drainage contractor install non-perforated pipes under areas destined for windbreaks and timberbelts.
Tree roots can plug perforated field tiles, especially roots of wet-site trees such as poplar.
Protect your drainage investments ahead of time with some careful planning. Andy grows hardwoods that he believes will have a good chance for value in future markets. If you ever catch him with his arms around the trunk of one of his trees, he will be sure to tell you that he isn't hugging it. Profit is a healthy and motivating factor'. Once the trees are harvested, however, you can count on finding a new little hardwood tree occupying the same spot in short order.