Relative Life of Stand

For this rating it is assumed that plants are adapted to the area.  Management may significantly alter stand life.  Ratings are on dryland only. 
1 = Persists even under low level of management. 
2 = Persists indefinitely with reasonably good management. 
3 = Requires good management to remain productive more than eight years. 
4 = Short - perhaps five years.  Through natural reseeding some species in this group may persist much longer than this, but the original stand will have substantially deteriorated. 
5 = Two to three years