The average temperature of a freshwater wetland in summer is 76 degrees Fahrenheit. The average temperature in winter is 30 degrees Fahrenheit. The climate in freshwater wetlands is usually semitropical, as freezing conditions rarely occur.

Biological impacts Changes to the water temperature of a wetland can result in a loss of sensitive species. Water temperature has a direct physiological effect on biota (e.g. affecting basic processes such as growth, mobility, reproduction, photosynthesis and respiration).

Wetlands in temperate climates experience warm summers and cold winters. Wetlands in tropical climates may have temperatures as high as 122º F (50º C)!

Sunlight. Light from the sun is an essential abiotic factor in natural wetlands.

Sunlight: Freshwater wetlands get between 7-10 hours of sunlight everyday. Light from the sun is an essential abiotic factor in natural wetlands. Sunlight provides the energy that plants need to carry out photosynthesis.

Vegetables That Happily Grows in Wet Soil

• Skirret Carrot. Most root vegetables don’t do well in wet soil, but the skirret carrot is an exception.
• Asparagus. Asparagus is a common garden crop that can tolerate soil that is temporarily wet.
• Taro.
• Rhubarb.
• Tanier Spinach.

Many plants enjoy moist conditions, including Hydrangea macropylla, Hydrangea paniculata, spiraea, Lobelia cardinalis, wisteria, bamboo, hostas, ligularia, drumstick primulas (Primula denticulata) and Japanese primulas (Primula japonica), Lythrum salicaria, astilbe, actaea, Viburnum opulus and Hesperantha coccinea.

10 plants for clay soil:

• Ribes sanguineum. Flowering currant flowers are dainty and delicate, adding finesse to the garden in late spring.
• Malus (crab apple) Crab apples are superb all round plants for clay soil.
• Bergenia cordifolia.
• Spiraea japonica.
• Viburnum tinus.
• Syringa vulgaris.
• Lonicera periclymenum.
• Pulmonaria.

How to improve clay soil

1. Dig over your soil in autumn.
2. Don’t walk on your soil.
3. Improve the drainage.
4. Plant in spring once the weather has warmed up.
5. Dig larger holes when planting.
6. Plant on a mound.
7. Mulch.
8. Add plenty of paths and stepping stones.

While there are a great many organic soil amendments, for improving clay soil, you will want to stick to compost or materials that compost quickly. Materials that compost quickly include well-rotted manure, leaf mold and green plants. Because clay soil can become compacted easily, place about 3 to 4 inches (7.5-10 cm.)

Clay particles are very small. Unlike sand, you can’t see them without a microscope. Luckily, they bind together to form small lumps, which are visible. These lumps give the soil an open structure, which allows water to drain, air to get in and roots to thrive.

If your ground has high clay soils or massive clay, the lagoon is perfect for those types of soil. If you have a large lot the lagoon can be hidden from site and will not need much maintenance (out of site out of mind). Most commonly the lagoon is one of the most inexpensive types of systems (cheaper the better).

Clay soil particles are very tiny. In soils with high clay content, the waste water may not drain properly from the drain field. The clay soil may clog the leach field. In very heavy clay soil, the use of septic systems may not be possible.

precast concrete septic tank

around 25years