|
students
have contributed over 4,000 hours to monitoring projects |

PONDEROSA
PINE SEEDLING SURVIVAL STUDIES
Barranca,
Aspen, and Mountain Elementary Schools, Los Alamos
Latest
data on trees planted in April, 2001 along the Quemazon and Mitchell Trails
and in April, 2002 near Rendija Canyon
 |
Since the Cerro Grande
Fire, volunteers have planted more than 20,000 ponderosa pine seedlings
in the burned area near Los Alamos. Not all the seedlings survive, especially
under drought conditions. What factors can influence survival? To find the
answer, Los Alamos area students conduct survival studies by collecting
field data and compiling it in the classroom. It is real science that produces
real results that are important to the community. |
| Using standard sampling
methods from the USDA Forest Service, students established permanent one-tenth-acre
plots with a GPS receiver. They sampled the live and dead seedlings within
in plot. Different results from different environments produced interesting
results. |
 |
Rocky
hillside, no vegetative cover |
| Number
of trees alive |
0 |
| Number of trees
dead |
24 |
| Total trees |
24 |
| Survival rate |
0 |
|
Rocky
hillside, vegetative cover |
| Number
of trees alive |
85 |
| Number
of trees dead |
31 |
| Total
trees |
116 |
| Survival
rate |
73 |
|
Rocky
hillside, mulched area |
| Number
of trees alive |
188 |
| Number of trees
dead |
93 |
| Total trees |
281 |
| Survival rate |
67 |
|
