ive been thinking of potential drought resistant designs that can also hold large amounts of water during out of proportion storms and rain events and will create a comfortable microclimate near the house, hopefully keep the
lawn green longer (client insists on having lawn, their choice) and include a diverse array of microclimates that create a very beautiful and resilient backyard - i just have it written down here, when i visualize it on a paper or white board, i will be sure to take a picture, just remind me to post pictures if i havent by january... ive fallen out of the habit of updating if you havent noticed... takes time and effort i dont always feel like sharing:p
so since ive sorta finished my minds picture for this place, i will write it down here where it can be shared and referred to later:)
On my small back
acre i plan to have a large, deep swale along the top that is on contour and leads to a silt trap and a large, deep, drought resistant
pond, then backfilling and filling a frog pond(ponds that are not full all the time and dry out in the dry season) or two along the bottom (only half-acre area to spread swale length on contour) before filling and emptying to a deeper frog/crawdad pond thats NOT sealed properly for better infiltration and backfilling into a smaller swale that is likely hand dug, and when that fills the overflow areas run in between a few hugelkulturs that have depressions betwen them to make more frog ponds and swale combos (very short, shallow systems to ensure a good catchment of water but not making travel impossible or more difficult than you would want, the spillways on each would alternate so that if it was flowing contiously for a day or two, it would meander through the walkway, slowing erosion and increase infiltration and moisture rentention/water quality all the way down the slope, these would overflow into another deep swale, POSSIBLY deeper than the other swale at the top of the hill, in this swale are 3-5 deep frog ponds that fill before the swale, then the swale spills into 5 or more spillways (to spread water out), some going on two sides of the heat trap, one going through a break in some more hugelkultur beds bordering the
chicken paddocks), then downhill just a ways from the bottome end of the top bed in the break, a pond would also form for frogs, creating a weak
tefa sorta thing with animals downhill and water reflecting light onto stones on the hugelbeds, before backfilling to hand dug swale, (with many depressions) that spills over the heavily textured
chicken yard, collecting in many small frog ponds and 4 small ones such as the ones between the hugelkultur bed uphill that are at the base of the part of the hugelkultur that wraps around the bottom part of the chicken yard, and finally, where the land currently turns from convex to concave, before turning convex again towards the house 40 yds away, this one hopefully deepest of all, with instead of ponds at the bottom, a few islands here and there for heat/water loving plants, using rock mulch, likely dark rocks to absorb maximum heat, with surronding banks in a circle around the island and deep mulch circle, clean(not maintained, just "clean") sand piled high enough to make an effective light reflector for the heat/moisture loving plant(s) on the small island, this would create moist areas that can be used for maximum heat gain and retention for out of zone plants
all of the back yard flows into a nearby draw anyway (probably wrong terminology, during heavy rains it fills up and backfloods the plain, which two years later (and a drought year) stayed green a few weeks longer than everything else into the heat and is still a bit LESS brown than everything else in the area) this is currently fed from my back yard, culverts running half a mile or so up the road my direction, another mile long culvert on a steeper rise heading other way and part of a much larger hill/ridge that probably equals a 2 square mile catchment area at least.
--- In 2010 this area backflooded so much that with another inch or two of rain in the same event, it wouldve flooded our poorly placed home (purchased, not built or sited by us) it was flowing out full force through an opened "culvert pipe" that runs under the road to the neighbors across the streets "pasture" i presume (occasionally see a horse there), but though it stay green for quite a while, i suspect he loses a lot of topsoil in these events, we still almost got flooded out and i believe he closed it with a board at one point to avoid it destroying his property ---
to mitigate potential water that may flood the home, i plan to build a hugel/bed or
berm along the edge of our property line near the house where the saddle sits, and dig down the area that runs to the culvert so that it backflows into my culvert during such large rain events, at the bottom of said culvert i would have deep pits that would serve as temporary frog ponds and help to filter out runoff/pollutants that come off the busy road nearby(county so no curbs) and planted with filtering plants and fungi that would help to clean that soil and moisture before it soaked into our land, then the plan to eventually convince the clients to take over the large area out front (currently used to park big vehicles and things for sale) and to loop around to park between trees - if this were clay soil it would create a huge compacted catchment area that would shed quite a lot of water towards the house) and plant a bamboo hedge at the ridge that is directly along the culvert, plant some plants that wont be used in a way that would involve eating toxins by some animal or person, such as non-edible decorative nursery plants for
sell, right next to the road so customers dont have to go out back for everything, also possible loacation for not easily seen honor stand (only have so much land to produce for so many people, which can be found by word of mouth easily - also reduces conflict with dept. of making you criminal), then maybe after a LIGHTLY sloped (say one or two inch drop for the full width of it) driveway that customers can drive up in to acess the plants ( perhaps a spot for MAYBE a well built
underground greenhouse - i dont know if i like greenhouses enough to have it there) IF there is a small
greenhouse there, then it acts as a catchment pond for some somewhat deep ponds that sit over and overflows through a few hugelkultur beds (both sets on both hills angled so as to move the water away from the house and to the draw while allowing it to soak in above said hydrophobic areas)
the back ridge and the front ridge, as well as POSSIBLE
greenhouse and animal housing just off front and back ridges respectively, act as the highest catchment areas and both have swales or some other way of holding a large amount of water from running downhill, as the water fills this sponge it hits the next one, frog ponds mostly, deep enough to have little risk of filling and overflowing even during heavy rains, then hugelkultur beds, and a final deep swale and/or large berm/hugelbed that run excess water off site and into the nearby draw, as this draw fills it fill the culvert at the top of the front end of the property, this water soaks in good and moistens just beneath the
greenhouse plants and around the SHCS (from central rocky mountain
permaculture institute) and waters things inside the
greenhouse deeply, being spongy, this reduces water needs in the
greenhouse for a long period, particularly if the water has already ran through and soaked the site once and is filling back in from the draw, without any pumps or substantial rise in altitude ( because it only hits culvert upon back filling) the water flows from the bottom of the property and returns to the top to be soaked in again