Demystifying the Woods

Photo by Brett Whaley CC BY-NC 2.0

The University of Maryland Extension's Watershed Steward program imitates the Master Gardener and the Master Naturalist programs in acquiring volunteers to be "boots on the ground" promoting care of their respective commons. There is another similar program called the Maryland Woodland Stewards program that has been around for decades under the title "The Coverts Program." The name changed in 2007, probably so as not to let it get mixed up with so many other covert programs with obscure names in this deep state vortex surrounding our nation's Capital.

The Woodland Stewards program (not covert in the usual sense) is interested in people who have acreage of forest (coverts, if you will) that they own and/or manage. I don't think they would be too interested in me, since I am responsible for less than an acre and I'm planning on converting it to a food forest.

On the other hand, there are many links to biochar and mushrooms that would make Maryland Woodland Stewards of interest to me. Before proceeding with my plans to replace most of the trees on my property, I should avail myself of the booklet and workshop entitled, "The Woods in Your Backyard," and another, "Your Woodlot and Your Wallet," with relevance to raising mushrooms. There are also resources about wood energy, which could educate me about better using the heat from making biochar. The presentations from two years' worth of MWS classes are also downloadable, along with a great number of other resources for folks like me who need more than the average level of knowledge about trees of the forest.

Oyster Gardening

I was sold on the garden plot that we began renting last year after spotting a bouquet of oyster mushrooms growing out of an old stump at ground level directly adjacent the gate. Since then, in addition to the tremendous amount of vegetables we've reaped from the garden, oyster mushrooms have been a frequent enhancement to our meals.

My garden there consists of several raised beds, separated with sunken paths that are filled with wood chips. These wood chips eventually break down and provide nutritious mulch for the following year's plantings. I was very happy to see one particularly deep path of wood chips thick with mycelium when I dug it up early this year. It's possible that the oyster mushroom mycelium had run over to the path, as it was only about 10 feet away from the stump. If oyster mushrooms come up in that vicinity later this year, that will be the most likely cause.

In any case, I aim to get oyster mushrooms from this garden path, even if I have to inoculate the wood chips myself. According to +Tradd Cotter, oyster mushrooms will grow on wood chips, though they are traditionally cultivated on logs. They are not rhizomorphic, so their rate of growth through the shady path won't be as fast as, say, garden giants. Myceliated logs buried in a bed of wood chips would be ideal. In his book, Organic Mushroom Farming and Mycoremediation, Cotter shows how to use cardboard spawn to inoculate logs. If my bunker spawn from oyster inoculated coffee grounds produces mushrooms, that could be another route to getting oysters into my paths.

Oysters are supposed to be the easiest mushrooms to grow. I have had minimal success, so far. However, since my shiitakes are all doing great, I think it's just a matter of time before I master cultivating this species.

Fuel Switching

Nassim Nicholas Taleb's prognosis for 2016 sees commodities, rather than banks, as the locus of the next Lehman moment.  Countries and corporations whose continuance depends on stability of certain commodities are at most risk.  The U.S. economy is probably diverse enough to ride out the effects of commodity price swings, but some states will suffer more than others.  Maryland's diverse economy is among the strongest, so we don't need to be concerned that coal will continue to fall in production from its peak of 5 million below the current 2 million tons/year across 60 mines, all located in the two westernmost counties.  (John Michael Greer's Cumberland is at risk, though.)

The commodity that puts Calvert County's economy at risk is natural gas, though little is produced in Maryland. When Dominion Resources sought their approval for constructing the LNG export facility at Cove Point, our county commissioners acceded to deferring tax revenue from Dominion until the plant began to ship product.  That probably won't happen until 2018, if at all.

Initially, my doubts about the prospects of exporting natural gas were based on the high rates of depletion from fracking wells, leading to a precipitous drop in productivity.  While that alone may preclude exports a couple years from now, there are even more reasons to doubt now and they stem from economic causes.

Commodities volatility seems to favor exports from Cove Point, since fewer export facilities will likely be built in such an environment than the 18 originally envisioned.  Yet, the same volatility is causing mayhem among natural gas drillers.  As pointed out in my previous post, Chesapeake Energy, the second largest producer in the U.S., is headed for the junk pile.  Many others, whose business models were based on low-interest leverage and speculative land leases, will suffer the same fate.  With so many companies going under, the growth of fracked gas that has occurred over the past 5 years will level off and decline.  With coal being black-balled as a fuel due to its effect on the world's climate, it, too, will quickly decline in use.  This puts the onus on natural gas to fill some of the domestic demand.  Since 2000, the share of electricity produced by natural gas has risen 10%, replacing coal as the fuel.  The momentum of this fuel switching will be maintained, though farsighted power companies will opt for renewable sources instead, given the limits of natural gas reserves.

Just one-third of natural gas is used for electricity production.  The other uses are mainly for industrial and residential heating processes.  Something's got to give.  We don't have enough natural gas (especially if fracking is deemed environmentally untenable) to follow the current growth trend. Conservation will smooth our descent, but remember we also have lots of wood. It has an energy density about 1/3 of oil, but any able-bodied man with a sharp ax can get all he needs.

Keep the Home Fires Burning

Most analyses of the greenhouse gas emissions problem hold the precept that we cannot quickly reduce our use of energy.  Hence, the introduction of technology to displace fossil fuel usage with more sustainable sources must serve as a substitute source of energy.  Oftentimes, the substitute is nearly as polluting as the original, or of dubious marginal value since it is difficult to estimate emissions from all potential sources.

Likewise, it is difficult to estimate the contribution of ecosystems to CO2 reduction.  This is why biochar is struggling to be recognized as an important, if small, part of the solution to the problem of global warming.  Biochar is made with little, if any, production of useful energy compared to incineration of biomass, which produces little, if any, biochar.  This is why the National Academy of Sciences gave biochar such short shrift in their recent study of carbon sequestration approaches. Maryland, unfortunately, adopted this study as the basis for sequestration in their climate action plan.

In order to embrace biochar, you have to allow for the possibility that satisfaction can come through many avenues.  Power may not be any more satisfying than assurance of abundant harvests along with restoration of biodiversity and soil health.  Electricity to power an ever more computerized lifestyle may be less satisfying to millions than lungs working to be filled with fresh air, while growing crops to fuel muscles demanding a more intrinsic energy source.

Energy is more fungible than biochar, but not as much as you might think.  Biochar's uses continue to expand beyond even the 55 identified by Ithaka Institute in 2013.  How can such a useful resource be overlooked, simply because it is not a significant source of energy?

Yet, were the world economy to break down today and trade in fossil fuels slow to a trickle, what would many people resort to?  Ubiquitous small outdoor fires for cooking and cleaning would turn into a climate and ecological disaster.  There are better ways to apply current technology to burning of wood. Coupling these with the production of biochar will help insulate us from climate change, peak oil, and financial folly.

Crash and Burn

Going into the COP-21 Paris climate talks, the U.S. position is reportedly to emulate Maryland's Greenhouse Gas Reduction Act, bringing carbon emissions for the whole country down 27% by 2025.  I imagine this won't be very hard, since peak oil and financial disaster will force us down that path eventually, anyway.

Meanwhile, Maryland can't seem to see the forest for the trees of gas lines crisscrossing the state. Though informed in 2010 that Maryland's abundant biomass could provide a portion of the state's energy, clean power investment has favored natural gas, solar, and wind power.

It would be comforting if Maryland would ban fracking like New York did this year. Otherwise, investments in cleaner power plants, such as the PSEG Keys Energy Center being built up in Brandywine, may end up as incentives to further damage the environment.  While it may beat coal and gas export in terms of carbon emissions, natural gas is non-renewable and only sets us up for a big gap when we deplete it without adequate alternatives.  Solar and wind won't come close to providing the level of energy that we get from fossil fuels.  Wood biomass could help some, but we have to begin putting the infrastructure in place.  In addition to building new types of facility-scale power plants, we need to reshape the workforce to concentrate it on sustainable forestry.  It is time to turn the corner, even if we have to slow down in doing so.

Mycoforestry

Today I found what appears to be a bunch of clustered wood lovers fruiting on dead roots near my "farm."  I'm assiduously verifying the identity because this little brown mushroom has some deadly near-look-a-likes.  If they are hypholoma capnoides (aka clustered wood lovers), I might try to cultivate some - on wood chips.
Mr. Hanners, our local mushroom mogul, gets his thousands of logs delivered by tree service companies for a fee.  One thing the innumerable tree service companies are happy to drop off at no charge are fresh wood chips.  We had a pile conveniently dumped in our driveway early this year and now I have decided that several more are needed.
A byproduct of portable, powered equipment, and thus destined for near-term decline, wood chips are usually made from ramial wood, i.e. less than 4" diameter branches, in order to save on hauling or to avoid creating brush piles.
I have a solution to both of these problems.  Not only is hauling of bulky branches unnecessary, but forests would also benefit if wood chips were left behind and used as mulch for saplings.  My second solution is that, once we reach the point where it is too expensive to chip wood, purposefully constructed slash piles make an instant low-emissions biochar-generating burn opportunity.  Again, the biochar could be used to amend the soil for young plants in the vicinity.  Since biochar needs an initial charge of microbes and nutrients, the rich soil under the previously laid mulch beds would be good places for spreading biochar.
Along with these two measures, the forests subsequently benefit from the proliferation of various saprophytic fungi that break down the wood chips and leave a profusion of exudates, chitin, and complex carbohydrates that nourish trees and their soil buddies.   Mycorrhizae also flourish in biochar-rich soil.  The resulting humus is a living, networked organism that emerges much more quickly than over the natural cycle time.
The most well-known wood chip gardener example is Paul Gautschi in Washington.  Maybe I can help bring some of that attention to Southern Maryland.  I have a plan to combine wood chips, biochar, and gourmet mushrooms in commercial quantities.  Don't hold your breath though, when you are dealing with wood chips, it takes a year or so to get an end product.