Rain, rain, rain. It’s been a wet spring, so far. Let’s put that down to global warming. The cause is one thing, but the symptoms another. They are there to see every day as I look out of the kitchen window. At the back of our house, the open field that stretches out towards the river Lambourn is about 7 acres in size. At least half of it has been flooded or is caught in that cycle of the ebb and flow of the river for the last 3-months. Great for wildlife. It’s a soggy marshland.
We are into mid-April and there are rainless days. Bit by bit, it looked as if the river’s flood waters[1] were receding, and they were but now and then a burst of rain tops up the pools and streams. That’s this morning in a nutshell.
Our lawn is growing fresh grass enough to fuel a herd of wildebeest. I jokingly said we need a goat to eat it all off. Getting my battery powered mower to control the lawn is a real effort. A healthy growing season. That’s the good side of a damp climate.
For livestock, and wildlife the flourishing fodder is a positive. Already there are two families of ducklings swimming around and eating as much as they can. On the negative side, parts of the field outback are too wet to allow cattle to trample the new grass. A seasonal problem I’m familiar with having grown-up in a place called Horsington Marsh.
Bright green growth is one of the delights of springtime. Leaves on the trees and the fresh grass as it reaches skyward. Even the moss looks shiny and alive. This is the two-edged sword of farming. Grass needs the rain but too much and the land becomes a potential mud bath.
Eventually, the fast-flowing waters of the River Lambourn run into the River Kennet and then the River Thames. Strange to think that the water the ducks and geese stomp around in around here eventually passes through the heart of London on its way to the sea.
It’s notable that the grass grows where the flood water has receded. That part of the adjoining field where the waters come and go has turned into a combination of mud and aquatic vegetation. There are plants that can tolerate little air getting to their roots and there’s others that start to die back if there are submerged for too long.
Sadly, although the river’s waters look clean and clear, sewage treatment works, septic tanks, arable farming, road run-off and industrial processes have all had their impact. Technically the river is in an “unfavourable condition[2]” when it comes to aspects of water quality.
What of the mud? It will be interesting to see how quickly the submerged areas recover as the weather improves. I’ll be looking out for how all the phosphates in the water and the dead grass come alive again. Or do we end up with a low-lying grimy mud riverbank supporting rushes, reeds, and algae? Climate change and the human activity are changing the nature of watercourses. It’s difficult to say if the worsts aspects of this can be mitigated.
[1] https://check-for-flooding.service.gov.uk/target-area/061WAF22Lambourn
[2] https://www.westberks.gov.uk/article/41082/River-Lambourn-Special-Area-of-Conservation-SAC
John Vincent 