| 5444985 |
root zone |
|
|
| 5388179 |
soil & water |
|
When algae and moss form on the soil surface this can be an indicator that the soil may be too wet and acidic for certain tree species. |
| 5388328 |
soil compaction |
|
Soil rollers are used to smooth and compact soil. |
| 5388231 |
flooding/high water |
|
A tree suffers on a poorly drained soil. Water fills most of the pore space in poorly drained soils for long periods, reducing the amount of oxygen available for uptake by the roots. |
| 5388232 |
drought |
|
Soils that drain too well often hold too little water to support healthy growth, creating constant drought-like conditions. |
| 5388233 |
fertilization |
|
Using the drill hole system to fertilize allows air and fertilizer to better penetrate the soil. After the fertilizer has been applied, the holes are than filled with organic or inorganic mulch. |
| 1406160 |
construction |
|
tree death due to construction |
| 5375330 |
static tree support |
|
Turn buckle tensioner. |
| 5375314 |
construction |
|
Soil quality near construction site. |
| 5375313 |
construction |
|
Soil below ground near construction work. |
| 5375290 |
grade change |
|
Grade changing causes harm to urban trees. |
| 5375285 |
construction |
|
Construction operations with no protection of urban trees. |
| 5375274 |
construction |
|
Construction site with a variety of soil qualities. |
| 5375242 |
soil horizons |
|
Often, soil horizons are shown to demonstrate the layer or zone of the soil profile with physical, chemical, and biological characteristics that differ from adjacent layers. |
| 5375250 |
soil horizons |
|
Soil horizon showing the difference between layers. |
| 5375251 |
soil horizons |
|
Soil horizons are shown to get an idea of what soil life is like beyond the surface. |
| 5375253 |
soil horizons |
|
Construction zones are a good place to locate soil horizons. |
| 5375255 |
fertilization |
|
Soil can be deficient in lime and need proper supplies of calcium and magnesium to help enhance fertilizer effectiveness and nuetralize soil acidity. |
| 5375256 |
fertilization |
|
Lawns that are deficient and not producing a healthy lawn may require dolomitic limestone to help correct soil pH and boost nutrients. |
| 5375258 |
soil & water |
|
Soil testing kit. |
| 5375263 |
grade change |
|
Soil under construction. |
| 5410517 |
soil horizons |
|
Urban soil profile |
| 5375244 |
construction |
|
Construction site preparation/grading |
| 5375245 |
construction |
|
Construction site preparation. Truck in foreground to show scale. |
| 5375247 |
construction |
|
Urban soils are often highly disturbed. Concrete washout and other debris can alter soil structure and chemistry. |
| 5375236 |
inorganic mulch |
|
Geotextile fabric used on an tree lawn |
| 5334096 |
iron deficiency |
|
parking lot island with compacted soil and high pH leading to nutrient deficiency |
| 5334090 |
construction |
|
|
| 5334092 |
construction |
|
|
| 1523015 |
urban ecosystem |
|
rain-out shelters for testing effects of drought on carbon allocation |
| 1523014 |
urban ecosystem |
|
Isolated soil microcosms to test the affect of soil type or amendments |
| 1523013 |
urban ecosystem |
|
Isolated soil microcosms to test the affect of soil type or amendments |
| 1523010 |
urban ecosystem |
|
installation of isolated soil microcosms to test the affect of soil type or amendments |
| 1523009 |
urban ecosystem |
|
trenching for installation of isolated soil microcosms to test the affect of soil type or amendments |
| 1523008 |
urban ecosystem |
|
installation of isolated soil microcosms to test the affect of soil type or amendments |
| 1523007 |
urban ecosystem |
|
Isolated soil microcosms to test the affect of soil type or amendments |
| 1523005 |
urban ecosystem |
|
installation of isolated soil microcosms to test the affect of soil type or amendments |
| 1523004 |
urban ecosystem |
|
initial trenching in the construction of isolated soil microcosms to test the affect of soil type or amendments |
| 1523003 |
urban ecosystem |
|
Isolated soil microcosms to test the affect of soil type or amendments |
| 5028086 |
construction |
|
protecting the root zone of a tree during construction |
| 5028085 |
grade change |
|
|
| 5050017 |
soil compaction |
|
|
| 5050018 |
grade change |
|
|
| 5034065 |
exposed roots |
|
|
| 5034066 |
exposed roots |
|
|
| 5291063 |
mulching |
|
deep mulching with material spread upto the trunk |
| 5291064 |
mulching |
|
deep mulching with material spread upto the trunk |
| 5291065 |
mulching |
|
deep mulching with material spread upto the trunk |
| 5291066 |
mulching |
|
deep mulching with material spread upto the trunk |
| 5191049 |
restricted root system |
|
tree roots pushing up through pavement |
| 5191050 |
restricted root system |
|
tree roots pushing up through pavement |
| 5028087 |
construction |
|
Construction activities can cause severe injury to the root systems of trees. |
| 5028089 |
grade change |
|
Grade was raised next to this white pine to elevate the road. The tree survived the change in grade. |
| 1397130 |
root cutting and trenching |
|
This drastic "root pruning" as a result of construction activities may result in the decline of the affected tree. |
| 1408005 |
grade change |
|
excessive soil fill; note the lack of a root flare |
| 5028084 |
grade change |
|
Trees can be severely injured by grade change activities |
| 1407057 |
root lifting, soil heaving, and windthrow |
|
or changing the grade and moisture content of sites can cause major problems for trees. Consider the consequences before the work begins. |
| 1407059 |
drought |
|
Drought takes its toll, too. You can help by watering trees during dry spells, especially when the buds are ready to leaf. |
| 1408003 |
tree grate |
|
poor soils, severe wounding, |
| 1408004 |
tree pit |
|
pressure from concrete causes root deformation as tree grows to fill a tree pit at a street corner |
