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Saturday Green Links – 3/3

Just got back from visiting our families in Maine, so not a lot of reading material today. Enjoy!

That’s all for now. As always, if you come across anything interesting this week, send it my way.

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Forestry Management

My niece, Mallory Bussell, is graduating from UMaine Orono this year with a degree in forestry. For her Forestry Management class last fall, she developed a management plan for my parents’ property. This is the most comprehensively anyone has looked at the land in decades (maybe ever!), and I discovered a lot from it, both about the property itself and about what forest management means.

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Soil Types

Mallory found that the property had three different soil types, and the use that the land was put to historically seems to correspond to the best use of that soil:

  • The PWC type is rocky and sloped—typically used for woodland, with high potential for white pine, sugar maple, white birch, balsam fir, beech, white ash, bigtooth aspen, and quaking aspen, which provide food and habitat for many species, including deer, bear, and ruffed grouse. This is the soil type found in the wooded areas of the property.
  • The PtC soil is silt loam soil with a slope, typically used for pasture or hay, although the slope increases the possibility of erosion. This is the soil found on most of the cleared (or formerly cleared) areas of the property.
  • The ToC soil is shallow with low available water capacity, typically used for hay or pasture, although white spruce and Eastern white pine can grow there. This is currently evergreen forest with clearings covered in moss.

Three Stands

For the forest management plan, Mallory ignored all the cleared areas or recently regrown areas and just focused on the wooded areas. She identified three separate stands of trees there:

  • Stand A has the highest volume of trees. It was once cleared but reverted back to woodland, probably more than 70 years ago. The dominant species is American beech, some of which are resistant to beech bark disease. There are 15 different species of trees in this stand, reaching a maturity level that will soon lead to self-thinning. There is also an old excavated spring. The combination of food, water, and shelter make it a prime habitat for wildlife. An abandoned ATV path crosses this stand.
  • Stand B is the largest, but with a lower volume of trees and more skid trails, due to cutting that my father did, with more fir thickets and understory growth. Balsam fir and red maple are the dominant of 18 different species. Multiple small wetland areas feed a brook located just off the property. The conifers intercept snow, as well as provide browse and predator protection for deer, moose, and other wildlife. This area is relatively inaccessible due to the slope, and it’s probably best to keep it that way because of the wildlife habitat.
  • Stand C was once used as pasture and blueberry fields, many years ago. More recently, it was harvested for firewood. This stand mostly consists of softwood, specifically balsam fir and red spruce, and for some reason is growing in almost entirely in balsam fir, which may be of concern considering a spruce budworm outbreak is predicted in the near future.

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Recommendations

  • Stand A is a valuable wildlife resource. One way of maintaining it would be selectively cutting the diseased beech. This would have to be done very carefully, so as not to disturb the healthy beech roots, which are shallower than other roots. Mallory says, “Harvests of up to 3 cords per year for a period of three years with a re-evaluation at the fourth year may be suitable to manipulate regeneration and stand improvement.”
  • Stand B should be left alone for now to recover from the cutting and reassessed in a few years, continuing its use as wildlife habitat.
  • Stand C should be left alone for five years, at which point individual stem selection or small gap harvests should be considered to thin out the fir. Leaving a small portion of logs on the forest floor to serve as nurse logs will help encourage regeneration of desirable species.

It’s possible for some of the land to qualify under the Tree Growth Tax Law, since Stand A consists of more than 70% hardwood. Stands B and C would not be eligible for Tree Growth, since they are mostly softwoods. However, as far as I could tell, the focus of the Tree Growth Law has to do with commercial growth and harvesting of trees, not primarily for recreation or conservation purposes, so we might do better with a conservation easement.

Mallory also included an appendix with info on blueberry management, apple tree pruning, how to prevent soil erosion, and more. It’s a huge wealth of information, and I’m sure it’ll be incredibly useful as our family decides how to best care for the property.

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Saturday Green Links – 2/25

This first link is especially interesting, since it comes in the middle of my Negotiation and Conflict Resolution class:

That’s all for now. As always, if you find something interesting this week, send it my way.

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Costa Rica: Carbon Neutral by 2021

On our vacation in January, we visited Costa Rica. I’d never thought much about the country before—in fact, I’m not sure I could have pinpointed exactly where in Latin America it was. But what I discovered really impressed me. Costa Rica is one of the most environmentally conscious countries in the world, and for good reason: the tiny country contains 4% of the total species estimated worldwide. It’s at the top of the 2010 Happy Planet Index, measuring a combination of well-being and environmental impact; fifth on the 2008 Environmental Performance Index; and winner of the 2010 Future Policy Award. The government’s goal is for Costa Rica to become the first carbon-neutral country by 2021.

Costa Ricans report the highest life satisfaction in the world. I’m trying to bring their concept of pura vida back home.

Things weren’t always this bright. From 1940 to 1987, forest cover dropped from 75% to only 21%. But that number has increased to 52% by 2005 thanks to a series of environmental laws. More than 25% of the country is now national preserve, a 1996 law restricted forest clearing, and a payment for ecosystem services (PSA) program has encouraged landowners not to clear their forested land. The PSA has been held up as a model for other countries, with 30% of its payments going to the extremely poor.

Ecotourism is now the largest employer in the country, constituting a higher percentage of GDP than the three largest cash crops: pineapples, bananas, and coffee. This is important, in that it shows that preserving natural resources does lead to financial benefits. However, it’s also important that the economy isn’t completely reliant on tourism. Electronic components and medical equipment manufacturing each pull in more money than tourism each year.

The picture’s not all rosy: There’s some question as to how effective the PSA program by itself has been; poaching is still a problem in national preserves; and the focus on deforestation has neglected some other environmental issues, such as air and water pollution. But the government has shown that it’s committed to environmental issues and that it’s possible to grow economically while still protecting natural resources.

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Random Tip: Free Thermal Scans for Cambridge Residents

If you live in Cambridge, like me, you’re in luck–HEET Cambridge has partnered with Sagewell, Inc. to offer free thermal scans of your home. Sagewell drives through neighborhoods with a thermal scanner (much like Google does with its Street View cameras) and captures a thermal image of the front of your house. You can see where you’re losing the most heat and get an analysis of the building with suggestions about what to fix.

Right now it looks like they haven’t covered many neighborhoods yet, but you can sign up to be one of the first.

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