College Of The Canyons – Banner
Facey – Banner
Academy Swim Club – Banner
SCV Chinese School – Banner 3
Valencia Town Center – Farmer’s Market – Banner
Galpin Motors – Banner
Santa Clarita Autosound – Banner
All Americans Bail Bonds – Banner
AV Party Rental – Banner
SCV Chinese School – Banner 2
Hugo Naturals – Banner
SCV Senior Center – Touch A Truck 2015 – Banner
Brent’s Carpet One – Banner
Green Convergence – Sun Power – Banner
Action Family Counseling – Banner
Simply Taylored – Banner
Union Bank – Banner
San Diego Zoo – Generic – Banner
Newhall Land – Banner
SCV Chinese School – Banner
Beyond Harmony – Banner
Adage IT – Banner
California High Speed Rail – Palmdale – Banner
Disneyland – Diamond Celebration – Banner
Nothing Bundt Cakes – Banner
Patterson’s Collision Center – Banner
Santa Clarita Transit – Dump the Pump – Banner
Newhall Land – 2015 – Banner
IHOP – Banner
Today
It is forecast to be Clear at 7:00 PM PDT on May 28, 2015
Clear
88°/59°
Home » Santa Clarita News » Environment » SCV Outdoor Report » SCV Outdoor Report: Slip Sliding Away

SCV Outdoor Report: Slip Sliding Away

By Wendy Langhans

Earlier this week, while making a right turn on to McBean Parkway, the unexpected happened – the rear end of my car hydroplaned.  Just a bit.  Not unmanageable.  But a wake-up call nonetheless.  You see, the rain, combined with the oil and grease that had accumulated over the dry summer months, created a thin, slippery film that “pulled the rug out” from under my rear tires.

But roads aren’t the only surfaces with a waxy coating right now – so is the land burned in our recent wildfires.  How did this waxy coating form and what does it mean, especially now as we enter the rainy season?

outdoor_burntcanyon

Wilson Canyon, after the Sayer fire in 2008.

Fire scientists refer to this waxy coating as “hydrophobic soil“.  It can be found 1/2 to 3 inches below the surface of the soil.  These soils are formed in a two-step process.  (1) A wildfire vaporizes the aromatic oils, resins and waxes found in plants, especially Chaparral plants.  (2) The vapors penetrate the soil and eventually solidify as they reach the cooler temperatures below the surface, creating a waxy coating around the soil particles.  Hydrophobic soil can be 1 to several inches thick, depending on the severity of the fire (higher temperatures means deeper penetration) and the type of soil (larger pores allow more vapor to penetrate).

 

outdoor_soilguide

From the Smithsonian in Washington, D.C. – a guide to the layers in soil.

Hydrophobic means, “to repel water”, which is exactly what this waxy-coated layer of soil does.  When the rainy season arrives, the hydrophobic soil reduces the amount of water than can infiltrate the soil, leading to an increase in both runoff and soil erosion.

Eventually, soil microorganisms and plant growth will break down this hydrophobic layer, but the process can easily take more than a year.  In the meantime, soil will continue to slip-slide away during the winter rains.

 


Upcoming Outdoor Events:

Saturday, October 17, 8-10 AM.  Bird walk in Towsley Canyon.  All year round, the habitats of Towsley Canyon attract a wealth of birdlife. Beginners are welcome. Bring your binoculars. 2 hours, easy walk.  For a map, go here.

 


You can listen to stories like this every Friday morning at 7:10 a.m. on “The Hike Report”, brought to you by your hometown radio station KHTS (AM1220) and by the Mountains Recreation and Conservation Authority.

For the complete MRCA hike and activity schedule and for trail maps, click here or go to www.LAMountains.com.

SCV Outdoor Report: Slip Sliding Away

Leave a Reply

Your email address will not be published. Required fields are marked *

*

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

About KHTS AM 1220

Hugo Naturals – News Banner
College Of The Canyons – News Banner
AV Party Rental – News Banner
Academy Swim Club – News Banner
Action Family Counseling – News Banner
All American Bail Bonds – News Banner
Beyond Harmony – News Banner
SCV Senior Center – Touch A Truck 2015 – Tile
SCV Chinese School – Tile
Simply Taylored – Tile
AV Party Rental – Tile
Facey – Tile
Mannered Mutt – Tile