woodchip mulch

Dark Soil Light Wood Saddleback — an Outdoor Classroom wildlife habitat installation

Apr 212017

Dark Soil Light Wood Saddleback is an Outdoor Classroom wildlife habitat installation at the Laguna Foundation‘s Laguna Environmental Center, or LEC, located at 900 Sanford Road, Santa Rosa, California, 95401. Date: February 23, 2017. School: Orchard View School, Sebastopol, California. Teacher: Sunny Galbraith. Me: Tony McGuigan, from Spore Lore.

Dark Soil Light Wood Saddleback (now that’s a name!) hereinafter “Saddleback” installation.

The Plan, from 2 months before the project. Name change was inevitable; the students had not been consulted. Plan is North View. Our project, Saddleback, is under East Log and the mounding of soil/rock/plants between the two logs.

In a nutshell, Saddleback is a wildlife habitat installation using a large trunk section to shelter an underground tunnel that leads to a rock outcropping and the surface.

Dark Soil Light Wood Saddleback — The Before. North east view. February in Sonoma County means mustard! Note the swath of vibrant yellow mustard in the lush grass-happy cow pasture beyond the Laguna Environmental Center’s fenceline. The line of trees on the pasture’s north border is Irwin Creek.

Prep — 3 Months Before Installation

Saddleback is a sister habitat to a previous outdoor classroom wildlife habitat installation: Twisted North Mound. In foreground, a student removes clay soil from under East Log to build the soil mound behind him. The trench was then filled with woodchips for easy removal when East Log’s habitat is created (beats digging out clay soil!).

Prep — Installation Day — Before Students Arrive

Turkey tail fungus on the oak trunk of West Log.

Turkey Tail fungus.

Meadow barley (Hordeum brachyantherum) plugs that will be used for the project. These plugs are leftovers in the Nursery; their survival rate will be poor. But, some may live to thrive in the habitat.

A plug of meadow barley. Note the moss “weed”.

Scraping away woodchips from under the East Log. See “Prep — 3 Months Before Installation“, above. Note the earthworm at my fingertips.

Soil critters thriving in the moist decaying woodchips under (shaded from sun) in the previously made trench.

Scraping away woodchips to preserve their integrity. We want to keep the soil we move from mixing with the woodchips.

Shading the woodchip pile with landscape cloth to minimize soil microbe/fungus fatality. The partially broken down woodchips are richly impregnated with decomposers, that is, microbes and fungus and arthropods and gastropods that want to eat the woodchips, thrive in them. Would be a shame to kill off such biota while installing a habitat. The opaque landscape cloth will keep harsh sunlight from the woodchip dwellers.

Taking shape. The trench under East Log is deepened. Soil in the tub, from the trench, will be added to Saddleback when the meadow barley is planted.

Shopping for something organic, something ALIVE! at the Habitat Resource Pile (an old woodchip pile with buried treasures). Note the middle stump, adjacent to the eaten out stump in the foreground — it has lived inside a large woodchip for over 3 years, always covered by chips. Now it is ripe to pick and place in a wildlife habitat. The stump itself is alive — it is impregnated with Life.

Prying Middle Stump (think Middle Earth) from the Habitat Garden’s woodchip pile. Note the dark richness of its bed — Are these woodchips are is this soil?!

Habitat it and they will come! Lots of Life, critters seen and unseen, fungi, stored water and its biome.

Stored in a tub, the precious stump is shaded in a plastic barrel. The stump’s transfer to the habitat will be in a few hours.

Harvesting compost from Compost Cricket Corral, as mentioned in my last post, Centipede Tunnel Perch.

Prep. Clockwise from foreground: 4-15 gallon pots filled with Nursery-discarded potting soil (free!), West Log, Cold Water Canyon rock slabs (standing and on garden cart), Middle Stump in white plastic shaded bin, plants (behind East Log in shade), black plastic bin of topsoil from East Log trench, tunnel of corrugated perforated habitated (holes cut in for critter entrance/exit) 6″ ABS, palm fronds, black landscape cloth covered mound of woodchips, wheelbarrow (rusty) of compost with an algae covered log, wheelbarrow (blue) of compost.

A bonus gift! We have 5 juncus Juncus patens to plant. Juncus, a reed, loves water; their presence indicates year-round water.

Installation — Dark Soil Light Wood Saddleback

Students have arrived and gather woodchips that will be used to finish the project.

In goes the tunnel, a custom designed critter tunnel, “Each Exit/Entrance is about 6-8″ long and 2″ wide (2 corrugation trenches).”, as described in Centipede Tunnel Perch.

Decisions, decisions — it is a school day after all.

Critter tunnel in place. Note the spaced cut-outs. Are you [critter] in or are you out?

Old palm fronds, salvaged/harvested from the Habitat Garden Resource Pile, are used to line the tunnel. Accomplishes: 1) keeps tunnel in place, 2) installs Life-alive! biome to project, 3) provides critters with a moisture laden maze of cavities, and 4) empties the palm frond pile. Turn trash to treasure!

Middle Stump has a new home. Saddleback gets an infussion of life.

Adding more wood for the habitat’s cavern-filled mound. Also, scraping soil to cover tunnel/palm fronds.

Backfilling to plant up against East Log.

Moving a rock slab into Saddleback.

And another rock.

The goal here is to create a planting mound joined with the plants in the foreground, those meadow barley of Twisted North Mound.

Soil for the mound.

In comes a cavity maker.

Saddleback’s north side is about to get a rock slab that will create cavities.

North end of Saddleback sealed off with a rock slab. Middle Stump is really now in Middle Earth!

Mounding soil.

And the bin of topsoil.

Woodchips.

Time to reclaim the woodchips from the start of the project.

Planting meadow barley.

Each meadow barley plug is planted top flush with soil surface. Then the grasses are lightly surrounded with woodchips, enough to support the grasses but not so much to block sunlight.

Planting meadow barley and juncus.

Dark Soil Light Wood Saddleback — The After.

1 Month After Installation

A western fence lizard surfaces from within Saddleback.

Same lizard back inside and out another exit. Fun in the sun.

Thank you, as always, to Sunny Galbraith, teacher at Orchard View School, Sebastopol, and her students. Also, much thanks to the Staff and Board of the Laguna Foundation, particularly the Restoration and Conservation Science Department: Wendy Trowbridge, Director; Brent Reed, Ecological Program Manager; Sarah Gordon, Conservation Science Program Manager; Paul Weber, Restoration Field Supervisor; Asa Voight, Restoration Technician II; Hannah Werdmuller, Restoration Technician; and Julie Skopal, Nursery Manager.

Enjoy your habitat installations. Habitat it!

Tony

Centipede Tunnel Perch — An Outdoor Classroom Wildlife Habitat Installation

1- Residential Habitats -- Critters and Their Homes, 6-Outdoor Classroom, Blog No Responses »

Feb 142017

Centipede Tunnel Perch — The Before. Northwest view. Previous installations in the Habitat Garden (nearest to farthest): Cookie Monster Perch, Garter Snake Ravine, Log Pile Apartments, Compost Cricket Corral, Big Splash Hotel and Spa, and Salamander French Drain, the last of which is nearly under the willow to the left.

Centipede Tunnel Perch is a wildlife habitat installed near the Habitat Landscaping Resource Center (otherwise known as the “compost” and “log pile”) at the Laguna Foundation‘s Laguna Environmental Center, or LEC, located at 900 Sanford Road, Santa Rosa, California, 95401. The installation was an outdoor classroom activity. Date: January 19, 2017. School: Orchard View School, Sebastopol, California. Teacher: Sunny Galbraith. Me: Tony McGuigan, from Spore Lore.

In a nutshell, this wildlife habitat installation is 3 tasks at the Habitat Garden. The Habitat Garden can be considered the collective of wildlife habitat installations, some of which are listed under the photo, above, and all the natural (organic) materials on hand. Most of those on-hand materials are the compost and branch/log pile.

1st Task — To get a large mass of wood buried deep into the soil so it will provide moisture to critters months after the rains have gone.

2nd Task — To use the soil dug from the wood’s hole to direct water to the wood.

3rd Task — To plant native sedge to hold the soil bank downstream from Centipede Tunnel Perch.

Prep — 3 Days Before Installation

Northeast corner of concrete slab behind the Nursery. Right: Garter Snake Ravine habitat with “weeds”, mostly the alien (non-native) Italian rye grass, an annual (per the local farmer, Stuart). Left: Log Pile Apartments and Compost Critter Corral habitats and Santa Barbara sedge (Carex barbarae). The students will be sheet mulching over the weeds and planting Santa Barbara sedge to cover both sides of the slab’s corner.

A pile of old straw is moved away to dig the deep hole for the habitat. Ultimately, a perch-like long piece of tree trunk will stand upright in the hole. The deeper the hole, the more stable the vertical post/pole will be. Also, the deeper the hole, the shorter (off the ground) the pole becomes. Grandiose towering structure VERSUS safety — always a hard weighing between the two! Note the old straw was left there to break down AND to keep the adobe clay soil moist, for digging such a hole. Wet/moisturize the dry, hard adobe clay soil one day and dig into soft, pliable adobe the next day.

A further note about digging here. The digging is horrendous at this site — all the more reason to be digging here. We will be unearthing the nearby road crew’s dumping of asphalt road grading, circa 1950’s, including many book-sized slabs of asphalt. That “worthless” soil will be our new treasure in creating a berm of soil to direct rainfall to the habitat.

A shovel head deep into the center of the Earth. Note the straw bale far right and the little berm of hole soil between the straw and the hole. That berm will help keep rainwater (we are expecting rain on installation day) away from the area. The installation area will be slippery enough without a running creek!

Prep — 2 Days Before Installation

Centipede Tunnel Perch’s perch has arrived, complete with safety cone hat.

Late morning rain. Perfect time to start work. Tomorrow, this new wildlife habitat will be installed by Orchard View students. Note this microcosm canyon. Our intention here is to capture as much water as possible and store it for as long as possible, so that amphibians would thrive here. (If amphibians can thrive, most other critter groups will have a fair chance of survival, too.) So, the adobe canyon, once a road crew dump, has become an adobe-lined, wood-filled water basin with outlet.

Regarding the habitat’s water outlet (mentioned in last paragraph), it is the height of the Santa Barbara sedge thicket, downstream from Centipede Tunnel Perch, that determines how far and wide Habitat Garden Pond becomes. Alas, a lake is born, on each good rain. As rainwater sits in the Lake, submerged wood will saturate that rainwater and store it. (Habitat Garden Adobe Canyon if you must have a name.)

Water! Precious stuff. So, rather than allow this road runoff rainwater to escape into the field downstream, through the double gate, a small soil berm will direct the rainwater to the Habitat Garden, to then be drained behind the Nursery and flow into the field. Either way, berm or not, the downhill field will get the water. With berm keeps the gate area dryer and brings water to the Habitat Garden.

Prep — Installation Day — Before Students

Installation Day. The soil is saturated with very little water in the hole. Perfect! I like easier digging. Note the black ABS tape on the posthole digger’s handles at 3-feet and 6-feet. The hole will be dug to the 6-feet mark.

Preparing to dig. Note that the wheelbarrow is lined with straw to cleanly dump the wet adobe soil harvested from the hole. The metal digging bar will straddle across the sides of the wheelbarrow and provide a knock-off edge for clearing out the posthole digger clams. Posthole digger in foreground (clams are at collecting end).

Muck removal on a bright shiny day. Note that the wood, blue-painted metal trench shovel (top) has its curve parallel with the curve of the posthole digger clam (below). The shovel will be flipped to clean the posthole digger’s right side, maintaining curve-curve parallel position. Note digging bar for banging the mud loose.

Dry Run photo op. Sizing the ABS 6″ corrugated perforated drainpipe Tunnel in the habitat.

Using a Milwaukee HACKZALL® to cut the plastic corrugated perforated pipe to install Exit/Entrance’s in the tunnel. Centipede Tunnel Perch includes tenancy options for critters using it. Eat, stay, have a family here, at least take a drink of water (meets the 4 elements of Habitat), then you can enter or leave through the many Exit/Entrance’s. Each Exit/Entrance is about 6-8″ long and 2″ wide (2 corrugation trenches). Note my boots are pinning the drainpipe up against the table’s leg posts.

Halfway done installing Exit/Entrance’s on this side of the pipe. The pipe will then be flipped over so that Exit/Entrance’s can be cut into that side, position alternating with the first side’s Exit/Entrance’s. Note the sawblade’s angle to ensure that both long sawcuts will meet.

The Tunnel is ready for installation. Exit/Entrance’s cut-outs collected in center.

View THROUGH the Tunnel to the concrete slab below.

Installation Day — The Students Are Here!

Removal of the adobe berm inside the installation zone. This soil will be the foundation for the road runoff berm.

Weeding the soil bank before sheet mulching. Weeds are dropped in place to keep the topsoil nutrients/microbes on site.

Thriving on a damp winter day. This outdoor classroom rocks! Takes a Village to support outdoor classrooms.

Progress of the hole. A lower platform has been stomped around the perch’s hole. That’s adobe! Note the rain workgear: mud boots and work-friendly rainsuit.

Your job (Yellow Slicker) is to stand here. And teacher Sunny did it so well while students pried Santa Barbara sedge plants from their pots. The sedge clumps were evenly spaced on the cardboard sheet mulching. Loose soil fill over the cardboard and between the plants will secure the plants in place on the bank.

Perch has been dropped into its hole. Note the ropes hanging on Perch. A triad of ropes was used to upright the tall, heavy tree trunk. One more rope was used to spin Perch after it vertically rested in the hole.

Students secure/stuff/wedge one end of Centipede Tunnel alongside Perch in the hole.

Inspection. And good news — Centipede Tunnel Perch passes. Note that the left end of Tunnel goes into the hole for Perch, toward moisture. The other end of Tunnel opens to ground level, under a log pile (or wood causeways if you are a cricket) where food (smaller critters) are plentiful.

Student stands on Tunnel while it is buried with old straw.

Foreground: Finishing touches for sedge transplanting — loose soil to fill in thin spots.

Background: Entire old straw pile is thrown at the base of Perch.

Trimming the sedge = twist and cut with pruning shears. The sedge leaves are used for mulch between the newly transplanted sedge bundles. Do plants have a feedback system such that dead leaves in the soil trigger growth? Always questions!

Students installing a temporary soil bank retaining wall. Short branches horizontal, saved-from-the-wood-bin stakes vertical. By the time these flimsy materials rot, like next year, the sedge bank will be glad to eat it up, glad to be nourished by the decaying wood. AND, most of that decay process will be from our Decomposer friends. Habitat it!

Sedge Corners. Note the tempory retaining wall of mulch material (little sticks, stakes, woodchips, soil). Perch is the blonde piece of wood on the far right of the tower of perches.

Centipede Tunnel Perch — The After. Note far right, the pooled water stopped from going to the gate by the new berm.

Hop, hop, and a few more. Wonder if my froggy friends will be at Habitat Garden Lake tonight?

Farmer Stuart moving hay for Stone Farm‘s plow horses.

Sedge Corners lookin’ good!

Centipede Tunnel Perch lookin’ good!

Time to call it an Outdoor Classroom Wildlife Habitat Installation Day! Time to give up the habitat to the critters. Time to go home, watch the receding Laguna de Santa Rosa leave the oak meadows along its banks.

Thank you, as always, to Sunny Galbraith, teacher at Orchard View School, Sebastopol, and her students. Also, much thanks to the Staff and Board of the Laguna Foundation, particularly the Restoration and Conservation Science Department: Wendy Trowbridge, Director; Brent Reed, Ecological Program Manager; and Paul Weber, Restoration Field Supervisor, and Julie Skopal, Nursery Manager.

Thank you to Aaron Nunez, the then Ecological Project Manager. Aaron has left the Laguna Foundation’s employment and is currently working elsewhere. Yay for Aaron! We teachers, students, and critters all appreciated his work while at the Laguna Foundation.

Enjoy your habitat installations. Habitat it!

Tony

Twisted North Mound — An Outdoor Classroom Wildlife Habitat Installation

1- Residential Habitats -- Critters and Their Homes, 6-Outdoor Classroom No Responses »

Nov 172016

Twisted North Mound is a wildlife habitat installed behind Heron Hall at the Laguna Foundation‘s Laguna Environmental Center, or LEC, located at 900 Sanford Road, Santa Rosa, California, 95401. The installation was an outdoor classroom activity. Date: November 10, 2016. School: Orchard View School, Sebastopol, California. Teacher: Sunny Galbraith. Me: Tony McGuigan, from Spore Lore.

In a nutshell, this wildlife habitat installation is a wad of clay, organic material, topsoil, and new meadow barley plants shoved up against a very large trunk section of a downed oak tree. A large rock slab, hovering off the ground, snugs up to the tree trunk and earthen, cavity-filled mound.

October 2013 (three 3 years ago) Stuart Schroeder, of Stone Horse Farm, uses an “implement carrier” pulled/pushed by a tractor to move West Heron Hall Log into place.

The BEFORE. Heron Hall Logs East (L) and West (R). One goal of Twisted North Mound is to have these large hulks of wood look more naturally placed in the terrain, for instance, as if the tree had fallen on site.

Habitat Installation Day — Prep before students arrive

Habitat Resource Depot (fancy name!) at the Laguna Foundation’s compost (left) and woodchip pile (right). Pulled from the depot for this installation: tree logs and small rootballs, rock slab (center), old surface compost with fresh grass weeds, and under-the-pile compost soil.

Lifting a rock slab for use in the habitat installation, a millipede is disturbed. Note the wisp of spider cob web lower left — a busy underside of the rock that has rested here only a month.

East view of East Heron Hall Log (there are two; the other is West Log), which is next to the habitat installation site. Note the sun-protected trays of meadow barley starts that will be planted. The south face of the log is thick with woodchip mulch to suppress weeds. Lush green grass and weeds in the background — now is the time to plant in Northern California. We can plant native plant starts now and the coming rains will water them, increasing plant survival despite no irrigation used.

Clear the table! Top layer woodchip mulch is scraped away from the work site for 4 reasons: 1) to harvest/collect woodchips that will be under Twisted North Mound (AKA “TNM”), mostly between the 2 large oak tree sections, 2) to access soil from under East Log (foreground), to harvest a thin layer of decayed woodchip-rich topsoil from under the scraped away woodchips, and 4) to keep the woodchips clean and usable as mulch (no soil!) while the habitat site is built.

A western fence lizard (Sceloporus occidentalis) is well camouflaged on West Log (center, far edge).

Close-up of wary lizard. Throughout set-up, lizards darted in and out of the Logs’ thick bark layer that has sagged from the harder cambium wood. Perfect habitat for these small creatures.

Gathering organic material to create a planted mound, here includes shovel skimming ALIVE topsoil and fresh weeds from a dormant Compost Cricket Corral bin.

A garter snake escapes from one side of East Log (where I was removing woodchips) to the back side of the log.

Ouch! Now I know these Jerusalem crickets can bite. Allowing this critter to crawl over onto my hand turned out to be a bad idea; luckily the skin of my finger was not broken by the insect’s jaws. Note that topsoil from under East Log is being harvested for use, and thrown on a tarp, for the West Log habitat mound.

Topsoil on a tarp (foreground) has been harvested from under East Log.

Mushroom layer has been exposed as the oak-tree-to-woodchip-mulch interface is exposed (at tip of shovel).

Bucket Man collects fresh compost soil from under compost; note shovel under compost pile in background.

Prep for Twisted North Mound wildlife habitat installation. Starting from west face of West Log, in foreground, moving clockwise: rakes to return woodchip mulch after installation is in, shovels, logs and root pieces (mostly river wood — not salt-cured driftwood), large pond-liner bin of avocado and bamboo leaves, buckets of compost soil, wheelbarrow of old compost and weed surface soil, wheelbarrow of heavy clay soil from under East Log, berm of woodchip mulch, tarp with pile of topsoil from under woodchips, Cold Water Canyon rock slab on rolling cart.

Site scraped and ready for the students to create Twisted North Mound. Note the berm of woodchips on the north side — it will be pushed onto the mound when mulch is called for.

Close-up view of meadow barley plants in waiting. Note the shelf fungus‘ thriving on East Log’s shady side.

Students Arrive

The students have arrived. Their first assignment is to figure which pieces of riverwood/driftwood will create the habitat between East and West Logs. Lots of physics to move the wood around AND not get hurt.

Students deliberate while a great blue heron flies by. Outdoor classrooms rock!

Getting somewhere — this “T-bone” triangular piece of wood will be the habitat’s foundation.

Instructing that we want to snug T-bone up to West Log and to fill it with soil and to be able to plant meadow barley in the crevice. Note that these pieces of wood between East and West Logs will be completely buried, slated to decompose and ultimately leave organic material in the surrounding soil and to leave cavities for critters to someday take advantage of. Are we talking about next year, 2 years from now, or ten years from now? The answer is yes. Habitat It And They Will Come!

Flipping up T-bone (left) to allow a small piece of old (ready for insects to eat!) wood to snuggle under T-bone.

Back down goes T-bone, over other hulks of wood. Different pieces of wood mean different resources for habitat critters — different food, different water saturation, different decay schedules and by-products. Our aim here is to invite DIFFERENT critters.

Orchard View students and teacher Sunny Galbraith at work. (Foreground) Digging out clay soil from under East Log. East Log is unashamedly laying with its cut end in full view (a problem). Following the permaculture principle “the problem is the solution”, we use clay soil from under East Log to cover West Log’s exposed corner and Twisted North Mound. Stay tuned for what happens to West Log. (Center) Working the clay soil from under East Log in the crevices of TNM. We want to pack in the soil so the plants will have maximum soil, no air pockets that would kill the meadow barley starts roots. (Background) Weeding Torrent Critter Crag, giving the torrent sedge plugs a better chance to survive, thrive.

Twisted North Mound gets avocado tree and bamboo leaves over its clay soil base. The organic layer will break down, while it is eaten by soil microbes and crawly critters, and leave a loose, cavity-filled layer under the barley meadow root canopy.

Covering the leaves with the soil scraped under the woodchips that were pushed back from the habitat site. Buckets of compost soil at the ready; that layer will be the top layer that the meadow barley starts are planted in.

The rock slab is moved into position.

And down, with the tip of the rock resting on a short length of rootwood (hard, long-to-decay wood) and the rest of the rock resting on the pile of small rocks that we collected while digging under East Log. The rocks found while digging, a problem, became a solution when wanting to create a space under the rock slab.

Another organic layer — the old compost and fresh grasses/weeds, complete with thriving soil microbes and crawly critters, will make a rich layer under the compost soil. The goal is to have the compost soil and woodchip mulch kill down any of the grasses/weeds.

Compost soil is sculpted to create a planting mound.

Meadow barley starts are planted. Note the rectangular root form to the plant in the foreground — these start plants were touseled, squeezed, massaged, and even roots ripped free to allow the plant a non-rectangular root spread. Free the roots!

Meadow barley starts planted among woodchip mulch.

And a little water for the meadow barley,

and for rock slab.

Twisted North Mound wildlife habitat installation is in! East view of back side.

North view of habitat’s “front”, that is, the view from behind Heron Hall.Students deliberate, time to talk amongst themselves after a successful work session.

Brent Reed, of the Laguna Foundation, inspects Twisted North Mound on installation day. Good thing this habitat was built to meet or surpass the latest Habitat Building Code.

Thank you, as always, to Sunny Galbraith, teacher at Orchard View School, Sebastopol, and her students. Also, much thanks to the staff and board of the Laguna Foundation, particularly the Restoration and Conservation Science Department: Wendy Trowbridge, Director; Brent Reed, Ecological Program Manager; Aaron Nunez, Ecological Project Manager; and Paul Weber, Restoration Field Supervisor.

Enjoy your wildlife habitat installations. Habitat it!

Tony