This is my design entry for the pond area of the Community Garden and Rumi suggested that I repost it here so, first off, let's talk about what a good pond needs.
- Aquatic plants for the following reasons:
1. Supplemental filtration - plants absorb ammonium, nitrates and phosphates.
2. Plants also assimilate other undesirable substances, such as metals, from pond water to improve water quality.
3. Supply food and shelter for fish and other organisms.
4. Compete with algae through the intake of essential nutrients, while shading the pond from light.
5. Helps keep a biological balance.
6. Helps prevent water from overheating.
7. Crops that can be used as mulch for other sections of the garden
8. Consumable foods for people to eat
- Some sort of shore plants. I personally would suggest a shade tree as well as some low-key ground plants for nitrogen recycling and weed competition.
- Trees have several benefits, but far and away the most important one is the shade they offer. A pond exposed to full sun throughout the day will heat up alarmingly, which is no good for anything living in it, be it fish, frog or plant-life. In addition, abundant light helps promote the growth of algae, bringing both blanket weed and green water. With the shelter of a tree, or multiple trees, fish and wildlife can seek out the shade when the rest of the pond is getting too hot and the ponds will stay far more clean.
- Organisms that inhabit the pond. A relatively small ecosystem, moving from "first tier" species such as plankton and algae, to "second tier" herbivorous fish. I believe that the pond would be too small to introduce carnivorous fish. However, even with a seemingly small introduced ecosystem, nature should flesh it out as varying forms of invertebrate and vertebrate come to inhabit the area.
What you have to keep in mind is that all levels of the eco-system have interdependencies on each other. Therefore, to properly maintain a pond, you need to ensure that all levels are properly balanced. In order to do this, each tier of the pond ecosystem should require the tier prior (for example, frogs and fish cannot exist in the ecosystem without larval insects, and plankton cannot live without the microscopic bacteria and plants). While this means that an attack on one tier would devastate the pond, it also means that the pond will not spiral out of control.
- Be large enough that the pond does not need to be micromanaged. I would suggest a 10' radius at a minimum, especially if we want to have large trees.
So, without further ado, here's my Pond plan. (I've attached images of the plants in the order that I speak of them)
[b]Plants in Guild (Plus a note on Fish)[/b]
- Hardy Lilies: Hardly Lilies are wonderful choices for MD because they both 1) Adore sunlight and heat and 2) Can survive fairly cold and long winters. From this category I would choose Texas Dawns and Pink Grapefruit lilies (mostly because they both bloom quickly and smell nice =).
[attachment=3071:texas_dawn.JPG] [attachment=3072:pink_grapefruit.JPG]
- Nymphaea Alba (White lotus).
[attachment=3120:white lotus.jpeg]
- Floating Plants: Water Hyacinth is one of the most recognizable pond plants and I believe that it would be right at home in our pond.
[attachment=3073:WaterHyacinthWFPR_DcP03.jpg]
- Oxygenating Plant: Anacharis is a quick spreading (sometimes dangerously so) submerged plant that helps keep the pond healthy by recycling nitrogen to use as fertilizer while it's fern-like leaves transpire oxygen. It attracts all sorts of aquatic life, including fish and turtles.
[attachment=3074:anacharis.JPG]
- Marginal Plants: Cardinal Flowers are absolutely gorgeous bright red marginal plants. They like to be planted on the edges of ponds, keeping it's "feet" wet and it's head high and dry. Beyond their aesthetic beauty, Cardinal Flowers benefit the pond by keeping algae at bay. As a color contrast I would also add Black Magic Taro and Pickeral Rush, both of which are easy to grow and are great natural filters.
[attachment=3075:cardinal_flower_2.jpg] [attachment=3076:'Black Magic.jpg] [attachment=3077:Pickerel Rush.jpg]
- Cattails: All ponds need Cattails. Enough said.
[attachment=3078:cattails-21317330.jpg]
- Eleocharis Dulcis (Water Chestnuts)
[attachment=3125:File:Eleocharis_dulcis_Blanco1.jpeg]
- Trees: Trees I would suggest planting include a Willow (preferably Weeping) on the opposite shore of where the Cattails would be concentrated. Willows are great for shade and to sleep under =) I would also like to plant a Mountain Ash and Hawthorn tree for a bit more diversity. All of these trees have a fairly shallow root system and are compact. Good choices for ponds. (The last three pictures are all of Hawthorn in it's different stages)
[attachment=3079:weeping-willow.jpg] [attachment=3124:european-mountain-ash.jpeg] [attachment=3121:hawthorn 2.jpeg][attachment=3122:hawthorn 3.jpeg] [attachment=3123:hawthorn.jpeg]
- Fish: [u][i](Still researching fish)[/i][/u] I'm not exactly 100% sure that we have fish in the Realm, but we have a statue of one, so they much be around somewhere, yeah? Fish (and other aquatic life forms) are a needed addition to almost any pond. A pond with no fish is like a circus with no clowns. It's still a pond, but the experience isn't quite the same. [i](Still researching fish)[/i]
[b]Desired forms of Plants[/b]
Most pond plants just sort of do whatever they want. It's hard to really control what they do besides stopping them from spreading like mad fiends.
1) Keep the oxygenating plants far away from the Lilies
2) Lilies in the middle? Meaning that the oxygenating plants would have to be closer to the edges .
3) Cattails opposite the Willow
4) Marginal plants in small clumps instead of all the way around the entire pond. Too many marginal plants just looks gaudy, and we need room for the oxygenating plants.
5) No marginal plants in front of the water flow into the pond.
6) Filtration plants lining the irrigation ditch that leads into the pond.
[b]Explanation of functional Relationships[/b]
Their relationships can be summarized as thus: Oxygenating plants reduce nitrogen in the water and create oxygen for the fish which need the shade from the Lilies, Willow, and floating plants. The floating plants cut down on algae spread and keep the pond mostly clean which is further helped by the marginal plants filtration. One big happy micro-ecosystem.
[b]List of Yields[/b]
1) There's the obvious yields from the fish: Food, oil, scales, bones… etc.
2) Willow bark contains salicylic acid, which is the active ingredient in Aspirin if my memory serves. Boiling the bark to create a tea would create pain medicine.
3) It smells nice, and, lets face it… who doesn't love ponds?
4) White Lotus contains aporphine, which is closely related to apomorphine. Upon ingesting anything that includes White Lotus, many report a feeling of euphoria. During WWI the extract was used as a replacement anesthetic when the normal opiate anesthetic wasn't available.
5) Mountain Ash will provide food for animals throughout winter.
5) Edible plants (lotus root, water chestnuts, lily blossoms, hawthorn berries, etc etc)
6) Mulch, quite a bit of mulch.
7) A host of crafts can be made from reeds.
[b]List of Needs/Dangers[/b]
Many of the pond plants that I have picked out are incredibly invasive. It will take a constant watchful eye in order to keep the pond in check and looking nice. Other than that, many of the plants I have chosen don't require much more than planting them. Supporting the growth of the trees in their early stages would perhaps be the most time consuming thing.
By invasive, I mean two different things. Anacharis and Water Hyacinth both spread and multiply rapidly. Anacharis can quickly take over the entire underwater space of a pond, which chokes everything living on the surface. Water Hyacinth does a similar thing, but on the surface of a pond. Both of these plants would need to be weeded and controlled. If not controlled, the "invasive" plants would spread down the irrigation ditch and take over the rest of the garden. They are both prolific and resilient.
Trees can be a danger to a pond (deep roots that break down the pond, stealing water, poisoning fish, etc), but I have not chosen any that will be. The worst our trees will do to the pond is drop their leaves into it come Autumn. Obviously those will need to be cleaned out, but it's not that horrible of a chore =)
[b]Relation of guild to the Realm[/b]
1) I was thinking that the Willow could come from a cutting/the pollen/seeds of The Willow located on Willow's walk.
2) The Cattails could be transplanted from Raven's Peace in Loreroot.
3) I would suggest placing rocks around the edge of the pond from the beaches in Golemus.
4) Coat the bottom of the pond with sand from Necrovion. I hear that there's sand there.
Ideally, all four main lands would be represented in the pond, but Necrovion and Golemus are a bit of a stretch.
To me, however, the pond best represents Marind Bell. A place for people to gather, simple beauty, and cultivated class. If I had to choose one land that the pond represented, it would definitely be Marind Bell.
[b]Construction of the Pond[/b]
1) The Pond needs to have several different depths of water, so a multi-tier system would have to be dug into the ground, with the deepest tier being in the middle.
2) It would be beneficial to the rest of the Garden if the pond was at a lower level than the irrigation ditch, that way there would be a steady disturbance of the surface water (from the small waterfall that this would create), and no plants could escape up the ditch into other sections of the garden.
3a) The windmill construction should be finished first.
3b) The aerating system needs to be protected from plant growth with a screen over the exit.
4) We should probably plant the trees before we fill the pond, just to give them a little bit of a head start.
5) Fill the pond
6) The other plants are planted into baskets that are then sunk to the proper depth of water for said plant. This should be an easy step once the tier system is done and the pond is filled.