Water's Journey Everglades Notes
The Florida Everglades: A Unique Ecosystem
- The Florida Everglades is a unique region with beauty and diversity, referred to as Florida's original magic kingdom.
- Marjorie Stoneman Douglas championed the Everglades, recognizing its uniqueness.
- Past actions in the Everglades were intended to benefit mankind, but may have gone too far.
- Draining and development have pushed the Everglades to the brink of collapse.
- A massive ecological restoration project, the largest ever conceived, has been initiated to protect the Everglades.
- The project is scheduled to take 40 years and cost over 10,000,000,000.
- Success would balance the needs of the Everglades and millions of people.
- Failure could threaten the survival of South Florida.
Hurricane Wilma and Flood Control
- Hurricane Wilma, one of the strongest Atlantic hurricanes, prompted mandatory evacuations.
- A special ops team was stationed in South Florida's water control center to prevent urban flooding.
- Catastrophic failure of dikes and water control structures is a major danger.
- South Florida is vulnerable to major flood events, similar to New Orleans.
- Lake Okeechobee's water level is maintained by remote-controlled dams, gates, and pumps.
- Breaching of these structures could have catastrophic results, devastating parts of South Florida.
Historical Flooding and the Hoover Dike
- In the 1920s, killer storms caused massive flooding in Southern Florida.
- In 1928, a category five hurricane breached a five-foot earthen dike on Lake Okeechobee.
- Approximately three thousand people died.
- President Herbert Hoover promised to build a 40-foot dike, leading to the first major flood control effort in South Florida.
- The dike stands almost 40 feet high and runs for almost 80 miles.
- Florida legislators declared a war on water, aiming to harness and contain it.
- Water was declared a common enemy of the state.
- The Everglades formed after the last ice age, around 5,000 years ago, when sea levels stabilized.
- Mangrove coastlines, hardwood forests, and cypress swamps developed.
- An enormous sheet of clear water covered the lower half of the state, flowing south.
- Industrialized settlers transformed the Everglades, seeking farmland, timber, and land for development.
- Drainage canals were created, exposing millions of acres of flooded land.
- Killer hurricanes spurred demand for flood protection.
- A dependable water supply was needed for the growing coastal population.
- In less than 50 years, over half of the original Everglades was permanently lost.
Exploring the Everglades Watershed
- A team of explorers and scientists are studying the Everglades watershed.
- Joe Hynerth and Wes Giles are environmental filmmakers.
- Scientists Mark Clark and Tom Morris have over 50 years of combined experience in the watershed.
- Two teams will explore the Everglades ecosystem using different approaches.
- Jill and Tom will paddle, dive, swim, and hike to cover over 300 miles.
- Mark and West will conduct aerial observations of the restoration effort.
- The Everglades watershed extends up to Orlando.
- Restoration requires managing the quantity, quality, distribution, and timing of water throughout the system.
Headwaters of the Everglades: The Kissimmee Basin
- The Kissimmee Basin is the source water for the Everglades.
- The area is located not far from Orlando's theme parks.
- Lake Russell in the headwaters appears pristine.
- Dwarf cypress trees are centuries old and indicate past lake conditions.
- Most big cypress trees were cut down for timber about 100 years ago.
- Alligators are apex predators in this area, with humans as their only real enemy when they reach a certain size.
Drainage Efforts: Hamilton Distant and the Army Corps of Engineers
- In the late 1800s, developers sought to drain the Everglades for its potential.
- Hamilton Distant planned to reroute the Kissimmee River to send water directly to Lake Okeechobee, east and west to the ocean, and stop the flow of water into South Florida.
- This is now considered one of the biggest environmental mistakes ever made.
- The Army Corps of Engineers, post-World War II, executed Distant's plan on a massive scale.
- The Kissimmee River was replaced with a 56-mile long, 30-foot deep channel.
- Massive ditches were cut east and west out of Lake Okeechobee to the coasts.
- Over half a million acres of land were drained for farming and development.
Consequences of Channelization
- Storm water from farms and communities poured into the Kissimmee Canal.
- The natural cleansing process of the flood plain was disrupted.
- Nutrient-rich water flowed directly into Lake Okeechobee and then to the Atlantic and Gulf.
- The canal was completed in 1971, and it was commonly agreed it should never have been built.
Modern Farming and Land Management
- Farmers like the Williamsons are trying to preserve their land and leading protection efforts.
- They are converting land into natural wetlands to manage runoff.
- Others are making land available for water storage.
- Okeechobee County has five times as many cattle as human residents.
- More than 5,000,000 acres of agricultural land have been converted to suburban sprawl since the 1970s.
- Open spaces are critical for habitat, water supply, and food source.
Restoration of the Kissimmee River
- The original Kissimmee River meandered over 100 miles.
- The river swelled into a flood plain almost two miles wide during rain.
- This cycle was critical to the ecosystem.
- Scientists and engineers are backfilling parts of the Kissimmee Canal to restore the river's natural flow path and floodplain.
- This allows the river to cleanse itself and enhances habitat.
- The dissolved phosphorus is reduced, and water quality is improved.
Lake Okeechobee and Phosphorus Problems
- Lake Okeechobee is the fourth largest lake in America.
- It is the source of major problems for Everglades restoration.
- Runoff from farms and development has impacted the lake.
- Phosphorus in the water is devastating coastal estuaries.
- The restoration plan aims to move more water south and use natural processes to clean it.
Phosphorus and Algae Blooms
- Phosphorus is introduced into the environment from fertilizers.
- High levels of phosphorus in water bodies fuel algae blooms.
- Algae blooms deplete oxygen and block sunlight, causing dead zones.
- Best Management Practices (BMPs) involve private farmers and local and state governments working together to protect the environment.
Livestock Waste Management and Recycling
- Confined areas allow for total waste containment.
- Farmers are turning pollution into products they can sell.
- Solids are collected and separated, and liquids are reused for wash down or irrigation.
- Solids are transformed into organic fertilizer.
Storm Water and Its Impact
- All water on Earth is connected.
- Storm water runoff picks up contaminants and carries them downstream.
- A major challenge is to minimize storm water impact.
- Pollutants gather on the bottom of Lake Okeechobee.
- Hurricanes resuspend contaminated sediments.
- Contaminated water is released to coastal estuaries.
Everglades Agricultural Area
- South of Lake Okeechobee is rich farmland.
- The area was transformed into agricultural lands with the construction of the Hoover Dike and drainage canals.
- The area has a rich deposit of peat soil, known as black gold.
- Protecting this muck soil is critical to the farmers survival.
Soil Subsidence and Challenges for Farmers
- After drainage, peat soil can burn or blow away.
- Biomechanical oxidation breaks down carbon in the soil, releasing carbon dioxide into the environment.
- Rising costs, regulations, and extreme weather events have forced many farmers out of business.
Big Sugar and Public Decisions
- Big sugar is a powerful political force in Florida.
- Government subsidies allowed sugarcane farming to thrive.
- Corporate farming became influential but was also blamed for the failing health of the Everglades.
- The demand for land, flood control, and the belief in man's destiny drove the ecosystem's decline.
- It was a public decision to create the Everglades agricultural area through drainage.
Everglades Restoration Fundamentals
- Cleaning up phosphorus-laden water is essential.
- Returning sheet flow to the lower basin is important.
- Creating massive water storage systems is needed to ensure water meets the needs of people, farming, and the environment.
- The Everglades Forever Act placed a threshold on phosphorus levels not to exceed 10 parts per billion.
- Private and state partnerships are key to implementing new farming techniques and BMPs.
- Farmers laser-level fields, conserve water, and reduce direct application of fertilizers.
Progress by Farmers and Challenges
- Farmers in the Everglades agricultural area have reduced phosphorus discharge by 55%.
- The goal to drop phosphorus levels to below 10 parts per billion remains costly and elusive.
- Farmers are faced with the question of whether to preserve the American food supply or sell their land to real estate developers.
- Urban landscapes have the potential to pollute on a much larger scale.
Impact on Seminole and Miccosukee Tribes
- The decline of the Everglades has impacted the Seminole and Miccosukee tribes.
- Both tribes believe that land cannot be owned.
- They remain true guardians of the Everglades and a powerful voice for their homeland.
- They are fighting to protect the Everglades the way it was and seeking control over the water.
Wetland Scientists and Phosphorus Impact
- Wetland scientists study plants, animals, and nutrients, focusing on how phosphorus impacts the ecosystem.
- Water conservation areas retain overflows of storm water.
- Cattails thrive on phosphorus-rich runoff and have become a nuisance species.
- Phosphorus helps plants grow, but it can cause communities to shift and reduce wildlife value.
Phosphorus Levels and Calcareous Paraphyton
- Scientists have shown how phosphorus changes along a gradient.
- This information is used to model storm water treatment areas.
- As the team moves southward, soil samples indicate that phosphorus levels are dropping.
- Calcareous paraphyton, a community of algae, fungus, and bacteria, indicates clean water.
- It captures sunlight, grows food for animals, and creates oxygen.
- If paraphyton is lost due to too many nutrients, it will result in the loss of a key food source.
Constructed Wetlands and Storm Water Treatment Areas
- Constructed wetlands or storm water treatment areas use plants to remove contaminants from water.
- A specially engineered mix of plants is used to cope with storm water challenges.
- STAs use a massive stage process that matches plant species to specific nutrient levels in the water.
- Nutrient-rich water passes through emergent vegetation, submerged aquatics, and periphyton.
- These plants cleanse the water and reduce phosphorus levels by about 80%.
- Clean water then enters the natural wetlands of the Everglades.
- Storm water treatment areas and best management practices have prevented $2,200$ metric tons of Phosphorus from entering into the everglades.
Conclusion: Commitment and Progress
- Commitment from environmental organizations, state, and tribal leaders is clear.
- Federal aid and widespread citizen support are crucial.
- The Everglades restoration effort is well on its way.
- In the Kissimmee River, over one-third of the river has been restored.
- Farmers continue to minimize runoff. By implementing an accelerated schedule to solve these issues, legislator are making good progress with the project.
- Pioneering scientists are successfully treating billions of gallons of water using aquatic plants.
- The Everglades is a unique ecosystem and is being restored well.