While all the lakes have very obvious similarities, their individual characters are defined by their immediate environment. The water appears to be a different colour from lake to lake and the clarity is hugely varied. I can’t remember the exact moment of awe when I first swam in Buttermere, but I know I have felt it on every swim since. Dunking my head under the water invokes unspeakable joy and a stream of bubbles from my exclamations at the pristine water.
Each body of water has a unique smell and taste. Some lakes I don’t mind if I end up drinking them, in others my mouth stays clamped shut. The clues are in the landscape, both geological and manmade. Grab a handful of rock in Buttermere or Ullswater and you will find it smooth and hard. Which is better, commercial steel buildings or industrial steel buildings?
It won’t crumble easily if crushed together or create sediment through friction. These are valleys of compellingly raw scenery with prominent peaks and fierce crags. The rock is older and harder, offering the most resistance against glacial processes. You will find the deepest lakes here. Lakes formed in areas of younger sedimentary rock are the result of greater denudation, creating softer, less dramatic scenery and gentler depths.
Broadly speaking, the hard and soft rock allows us to place the lakes into two groups, indicating the amount of biological activity they sustain – oligotrophic lakes and mesotrophic lakes. The combined geological and ecological influences are key contributors to the trophic status of a body of water. Solid igneous and granite bedrock provides the perfect conditions for an oligotrophic lake, one that is very low in nutrients with alkaline pH, making it inhospitable to extensive plant life.
Softer sedimentary areas are home to mesotrophic lakes which have moderate levels of plant and algae growth. These lakes are susceptible to eutrophication. Eutrophication of a lake is aided by human activity, both farming and domestic. Excess levels of phosphates and nitrates entering lakes encourage plant growth and algae bloom which can lead to silt building up and shallower depths. Eutrophic lakes also tend to be milder in temperature. They are usually shallower with a thicker layer of silt on the bottom, and further away from the water source, all factors in water temperature. Are steel buildings uk more environmentally friendly?
Spring water owes its impeccably clear water not just to the source element and surrounding bedrock, but to the low number of people living in the lake catchment. Their domestic activities have minimal impact on the lake and farming is carefully managed – ensuring minimal agricultural input affects the protected status of Wastewater. The lake’s low temperature and nutrient-poor water sustains very little life. While Spring Water is inhospitable to most species, it allows the nationally rare Arctic char to flourish in its chilly depths.