Discusses types of plane surveys, including property surveys and cadastral surveys. Briefly sketches the history of the rectangular survey system in the United States and describes how the rectangular system works. ...
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Christmas trees planted in unirrigated sites depend on the weather for survival. A research trial set out to find factors that would help seedlings survive during drought years. Results were mixed.