The Leaf Adventure continues...
A big area of leaves with a bunch of trees and some undergrowth needs a combination of tools. Rake, blower, shovel and pitchfork, plus a wheelbarrel and tarp did the trick. The area in the front cleared is about 150x100. Figure about 15k square feet, took a couple of weeks of working at it a couple of hours a day.
Shredding Pit
I ended up dumping the leaves in a spot about 20 foot square. Pile up a bunch, run them over repeatedly with the mower...does a fine job of shredding them up. Then go get more leaves. I piled up leaves around the outside of the area to contain the leaves. This worked well, with smaller debris blowing up to this
berm rather than blowing to kingdom come. Kept it tidy. In the end, the berm was also shredded. The mower blade took a pounding, had to put it to the grinder to bring an edge back and it needs to be sharpened again. The trailing edge of the blade is well worn. Shredding is handy, but I think I have all the shredded leaves I need. The leaves in the rest of the field will only be shredded if I need them. No point in the extra work and fuel.
Sifting of Fine Material
I built a small sifter with 1/4" screen to fit on top of the wheel barrel, sifted some of the material. More than half of the material going into the sifter went through. I filled a 32 gallon trash can with finely shredded leaves, then stopped, as I don't have a use for it just yet, all I'm doing is seeing what I can do with the stuff. Poking around
online I found several references that say this will work well as a substitute for peat moss. That will save a few bucks. I ran a gallon of gas through the mower, another gallon through the blower. That barrel will save enough on peat moss to offset the cost of the gas.
Water Retention
I measured a quarter pound of the fine material, added measured amounts of water, let it rest, then tried to pour out water. At 16 ounces of water, a few drops trickled out. This says the shredded leaves have a 4:1 water to weight ratio. It's only a single data point, but that's close enough for me. I was quite impressed with this feature.
Ending Volume
I have a heap of shredded leaves 6 feet wide, 16 feet long, and 4 feet high. Accounting for sloped sides, I calculate about 8 or 9 cubic yards of material from 15000 square feet. Thats a cubic yard of material for every 2000 square feet of area. I can expect some compaction as the stuff rots down, but I cant say by how much. Whole leaves shrink to about 1/4 of original volume-around here its almost all oak leaves. Shredding has already reduced their volume considerably.
Healing
The area was cleaned up down to the soil. Where it was once covered, the land is bare. There are some spots in the middle of a bunch of trees that was not taken down to the soil because it aint moving. Leaves are still falling so the soil will get some cover, with a fair leaf drop expected in the spring.
Now What
-I need more leaves
-I have another section about the same as this one.
-I have a section out back with twice the area and considerably more depth.
-Next door is a 3 acre plot entirely covered with leaves. They need to come up before they burn this place to the ground.
-If I stick with this adventure, coming up with dozens of cubic yards of leaf mold is possible.
-I mulched the peas with shredded leaves
-I mulched the onions with whole leaves.
-I have started in on the section out back. I'm dumping them in a spot that is mostly sand.