The Effect of Grass on Trees – August 2019: Part 6

We’re continuing with our series on the effects of grass on trees: Most of us only associate clean air with trees. Grass also cleans our air and is often overlooked. If you’re looking for guidance on how your lawn might be affecting your trees, please don’t hesitate to ask.

Low Water Use Varieties
There are varieties of trees, which are low water use, such as those of the Mesquite family. Similarly, there are low water use varieties of turfgrasses such as Bermudagrass, Zoysia, and Buffalograss which is native to the Northwest. In research done by the University of California Riverside, differing amounts of water were applied to common Bermudagrass. “Even with as little water as 50% of reference ET, the conclusion was that “common Bermudagrass quality was good throughout all treatments.” 4 Including consideration for irrigation distribution non-uniformity, this is within the target levels of water use promoted by conservation committees and public utilities.

Instead of restricting all types of turf, a balanced approach to water conservation includes recognizing the differences in both grass and tree varieties and their respective water needs. For a breakdown of these benefits and their assigned dollar values, please refer to the full article “Trees are Sacred, Grass is Bad, Why?”.

Using Top Tree LLC
Top Tree LLC is your best choice for any tree stump removal needs in the Tri-Cities. All of our technicians are highly trained and properly certified. We are happy to answer any questions you have now or in the future.

The Effect of Grass on Trees – August 2019: Part 5

We’re continuing with our series on the effects of grass on trees: Most of us only associate clean air with trees. Grass also cleans our air and is often overlooked. If you’re looking for guidance on how your lawn might be affecting your trees, please don’t hesitate to ask.

Many environmental functions are related to leaf-surface area (e.g., reductions in air temperature, air pollution removal, volatile organic emissions, carbon dioxide sequestration)…”

The greater the leaf area of the trees and grasses, generally, the greater will be the environmental benefits and the greater will be the amount of water required to sustain healthy growth of that plant.

It is also important to note that much of the water needed for healthy urban tree growth originates from irrigation of grass or other plant material. The inference is that the benefits provided by shade trees have little water cost since the plant material under the trees is considered to be the sole consumer of the irrigation water. This is incorrect since the removal of grass or other plant material will require separate
irrigation cycles to maintain healthy shade trees.

Using Top Tree LLC
Top Tree LLC is your best choice for any tree stump removal needs in the Tri-Cities. All of our technicians are highly trained and properly certified. We are happy to answer any questions you have now or in the future.

The Effect of Grass on Trees – August 2019: Part 4

We’re continuing with our series on the effects of grass on trees: Most of us only associate clean air with trees. Grass also cleans our air and is often overlooked. If you’re looking for guidance on how your lawn might be affecting your trees, please don’t hesitate to ask.

The following is an excerpt from:
Trees Are Sacred, Grass Is Bad, Why?
– Sylvan Addink, Ph.D, Certified Professional Agronomist Water Use of Trees Versus Turf

If efficiently irrigated, research data indicates that many trees require as much water, if not more water than grasses. Research by Dr. Devitt et. el. in Las Vegas, NV indicated that “During the active growing season, tree to grass (Bermuda grass/ryegrass low fertility) water use ratios in the range of 2 to 4 were observed.”

Evapotranspiration reflects the level of plant water use from both plant transpiration and evaporation. “Leaf area index, an important structural variable descriptive of vegetation, is directly related to evapotranspiration.”

This means that a similar amount of water will be required to maintain the same amount of leaf area, whether grass or trees with similar transpiration characteristics. The leaf area index for turfgrasses is similar or less than that of the forest leaf index for several common deciduous tree varieties, which supports the conclusion by Devitt referenced above.

Using Top Tree LLC
Top Tree LLC is your best choice for any tree stump removal needs in the Tri-Cities. All of our technicians are highly trained and properly certified. We are happy to answer any questions you have now or in the future.

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