chad Christopher wrote:Why not all 3? That looks like a big roof. You'd be surprised how much water casts off, plus taking into factor ground catchment
chad Christopher wrote:Well I'm being a tad optimistic. But if you get some precipitation records, and the sq ft of the roofs, I could help you figure out what's possible! A small pond is better than none.
Bill Bradbury wrote:Hi Elle,
We use our rainwater catch pond for water banking. Since we have hot dry summers like you do, we store water accumulated in the fall to spring in the pond with no liner and no attempt at sealing. Hugelbets are on contour, sloping back to the pond. Although I had never heard of a crater garden when we landscaped, that's pretty much what it turned out to be. I love the thread on Zach Weiss' crater gardens; that's inspired me to look to a much deeper and wider plan for our next design. I think the crater garden with hugels on contour and a spiral pathway through it all is the ultimate permaculture landscaping tool for our hot/cold dry climate.
We built ours last spring; here are a couple of photos of the process.
Bill Bradbury wrote:Hello Elle,
The pond is not the water bank, the soil is where I am storing water. The pond is only filled like in the picture in the spring and fall. The rest of the time it is a small mud puddle that doesn't look so great, so we don't take pictures of it then. All that water infiltrates and is stored below ground where it will not evaporate so easy.
A little of this water will recharge the aquifer, but most of it will be held all year in the soil, changing the hydrologic dynamics of the soil. The key here is to have lots of trees and other deep rooted plants to bring the water back up as the summer heat hits. When a tree brings water up from deeper areas, it will release nutrients and moisture higher in the soil profile if those areas are drier. This is how I get by without irrigating.