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A forest of old trees sequesters more carbon per year than a forest with the same quantity of young trees. When I first saw this question I thought I knew the answer -- trees grow faster when they're young, therefore they sequester carbon at a higher rate. When I went looking for the data to back this up, I found that this is still a somewhat controversial ...


12

Wood is close to the most eco-friendly building material around: It's renewable. It's production overall pulls carbon out of the atmosphere. Material tied up in construction is carbon that isn't in the atmosphere. A lower fraction of its cost is transport since the building grade wood is sourced locally when possible. The issues people have with the ...


10

Conservation It is a fundamental law of physics that matter/mass/energy (all being, ultimately, the same thing) cannot be created or destroyed — they just change form. Under 'normal' conditions on Earth, any carbon atom that exists will continue to exist in perpetuity. It can and will form temporary bonds with other atoms to form distinct substances with ...


9

Well, I'm by no means an expert on giving this answer, and yet I'll take a go at providing something reasonable. Assuming a 1ha biodiverse, properly hydrated, young stage forest with optimal leaf coverage that gives us a solar catchment area of 10,000 square metres. Subtract say 20% to account for immature trees amongst the larger growth, another 20% for ...


8

This paper suggests that one 20 year old tree will sequester 1 tonne of Carbon which is 3.67 tonnes of CO2 which is roughly a year's CO2 footprint of one UK person or a third of a US person. However, your question is about planting one tree, which is subtly different. In order to get a decent healthy twenty year old tree, you need to plant about twelve ...


7

As LShaver writes, larger trees sequester more carbon than smaller trees, but only if they are still growing. In a "fully-grown" forest (as per the title) that process has ended — decay and regrowth are in equilibrium. Fully-grown forests are carbon-neutral. All of them. The Amazon rainforest — all 5,500,000km² of it — is carbon neutral. If you plant a ...


6

True sustainability is not dependent on outside sources. Try to learn the art of coppicing for fire wood, along with growing self propagating plants such as black locust which grows fast and produces more saplings along the root system and then can be cut for wood within a year or two. You would not need to purchase trees often once the coppice method is ...


5

This depends obviously on the size of the tree, but I read somewhere that a tree ready for harvesting into sawlogs can be about 0.6 solid cubic meters in a boreal taiga forest (spruce or pine). One solid cubic meter sequesters approximately one tonne of carbon dioxide. So, 11 billion trees will sequester 6.6 gigatonnes of carbon dioxide. According to https:...


5

Coconut tree and Bamboo are two alternatives of timber i can think of, if you want wood's characteristics you mentioned. strength acceptable rate of biodegradability you'll worry about how to preserve it instead safe for the environment just chop em up and burn (as fuel) However it only work if the source is near your place (plant them yourself or with ...


5

Be gentle with an existing forest. If your trees are already in place, then you may put the biochar directly in place around the trunks of the trees you want to help grow. You may rake the soil to put the biochar beneath the normal humus forest ground, to avoid it to be washed away to quickly. Depending on how you created your biochar (it may contain more ...


5

We kept 70 - 80 wild guinea pigs in the back of our lot for perhaps four months. They free-ranged the pasture during the daytime and slept in sturdy cages at night. Every few weeks we would move the cages, till the manure into the ground, and plant a garden. Here are some insights: 1) The guinea pigs did a fantastic job of eating down about half an acre ...


4

I'll start with my own answer including some examples I'm aware of to help set context, and I'll highlight in bold some uncertainties. This will be a community wiki so we can build this list together and clarify uncertainties over time. Actions Today Contribute to non-profits and charities focused on forest conservation, reforestation, and sustainable land ...


3

Buy degraded/abused land in strategic locations (which should be cheap as a result). (Re-)Plant trees. Place a conservation covenant over the property so that future owners are legally required to preserve it. In Victoria, Australia, organisations like the Trust For Nature can help with this process. If you're not sure what a conservation covenant is, ...


3

Typically, where I live, forestry professionals use solid cubic meter of wood as the primary measurement. But, let's define all of the measurements. In this answer, I use the metric ton (1000 kg) as the definition of 1 tonne. Loose cubic meter of wood is the amount of wood that will fill a container of 1 cubic meter, if the wood is thrown there in random ...


3

Sometimes it is, sometimes it isn't. If you have a forest that is cleared with no intention whatsoever to re-plant a new forest, that is bad for the climate. You can't make all of the trees into lumber, you will have waste products like small diameter treetops (too small to make lumber from it, can be used as pulpwood), roots, branches and lots of sawdust. ...


2

To be ecologically truly sustainable, no live trees should be cut. That will most closely mimic a natural ecosystem instead of turning them into managed tree plantations (which ain't properly forests). "Only take dead wood" Now forests naturally create also a lot of biomass in the form of dead coarse wood, dead fine wood and dead leaves. That would ...


2

How much energy could we actually gain from biomass from a given forest size if it was actually green? Primary productivity is the term used to describe the rate at which energy is converted into organic material via photosynthesis. Deciduous temperate forests have a net primary productivity of: ~6000 kCal/m²/year ~16 kCal/m²/day ~67 kJ/m²/day ~0.0186 kWh/...


2

Yes and no. The answer to the question you asked is yes. Biodegradation produces carbon dioxide and heat. The heat of biodegradation will be wasted. It makes much more sense to usefully harvest the heat stored in wood, and thus, not letting it biodegrade but rather burn it in power plants. However, you seem to think there are only two options: ...


2

The simple answer is that burning it would be roughly carbon neutral (it releases what it absorbed during growth) versus letting it decompose where it would be a carbon sink. Fossil fuels in the ground came from this vegetative carbon (+ millions of years and pressure). Burning renewable fuels is considered better than burning fossil fuels in the ground ...


2

I think a review of photosynthesis is in order. The CO2 plants take in are actually stored as sugars. Burning this will release it, but wood that decomposes naturally would have those sugars broken down by animals and fungi etc (who will release co2 via respiration) but will actually use much of that carbon to build their own bodies and keep the carbon ...


2

The pure maths in your question. Trees both absorb and emit CO2. The difference is stocked in wood. You should not see those 2 figures (CO2 cycle and stocked carbon) as 2 different inputs, they're the same. But one is yearly, and the other one over the tree's lifespan, which varies a lot. I'll go with the yearly approach. According to that link trees - I ...


2

By moving a tree from one area to another, that's -1 tree to the source and +1 tree to the destination, for a net change of 0 trees over the region. That probably won't make much of a difference overall. The specific tree being moved might fare slightly better or worse over its lifetime, which could have a small impact, good or bad. Maybe the real question ...


2

I think you'll find that in areas where forests are managed, baby trees come from a central location the only purpose of which is to grow lots of these small baby trees. The trees are used to create a new forest in an area where the old forest has been cut down for timber. In contrast to letting the new forest be naturally seeded, obtaining the baby trees ...


1

Every tree creates a micro-climate. It provides shelter in winter, shade in summer, protection from the wind... These are mitigating factors that make a house a little warmer, the garden a little more productive, the self-seeding of other trees more likely. It results in positive, accumulative and inter-related effects.


1

Summer can be a bad time for planting trees. I normally overlay a google map with topography and design on that map. I am not an expert on companion planting with the species you list, but a fungal dominated environment would benefit forest / tree system. Wood chip mulch will encourage fungal activity, remember rabbit guards rodents also like wood chip ...


1

No animal no person could or should do the work for you. You HAVE to put some time and effort into learning about these plants, their height, width, how fast they grow, whether they need low pH or high pH, how much sun they need, are you able to chop your yard into different, separate sections so one section could be less than 6 pH and another 7 pH? Have ...


1

Many kinds of animals can be used, but chickens are most often selected to patrol the floor of a food forest. I used to allow my hens to have full run of the yard all the time, but they were way too destructive. Now I just let them out for an hour or two when I'm there to supervise. I encourage many kinds of sprawling plants like day flowers, gogi berries, ...


1

Well, steel that is recycled in arc-furnaces produces less air-pollution than iron-ore processed in blast-furnaces. One way to increase the recycling of steel would be to use stainless-steel which would be more valuable in recycling. Now 304L and 316L are available in standard structural shapes and are designed for simple arc-welding. Then 304L and 316L ...


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