THE MODERN MINT BLOG
To prevent future flooding there is a need to manage the land in a different way. The dredging of rivers will do nothing but speed up the flow of water to ‘pinch points’ further upstream. The use of sandbags is a measure provided too late, when normal life has been halted by water flowing into homes.
Natural Flood Management (or NFM’s) must now be considered a major part of flood prevention. The critical factor of NFM measures? The planting of trees to slow down running water.
By planting trees near headwaters they act as a buffer to hold up rainwater runoff. Planting woodlands near streams works in exactly the same way, slowing down the water. Debris from the trees can also fall into the river, creating dams that hold back excess water. These ‘timber flow interventions’ can even be man-made, by laying fallen tree trunks into the stream. These are far cheaper measures than building bigger walls to protect towns.
Trees also help water percolate into the soil (60 times faster in some research) although infiltration will be reduced if the land is already saturated. If this is the case, what options do we have then? Short-term, we are back to the sandbags. Long-term though, we lessen rainwater runoff rates from poorly managed land. How do we do that?
Treat our soil better.
We could stop winter sowing of crops. This leaves the soil bare for months. With nothing to bind it together it turns into mud when wet and leads to land erosion. The sowing of a winter ground cover would benefit the soil as much as preventing flood damage.
Stop compacting the soil with heavy machinery and too many animals walking over it. Compacted land works the same as any impermeable surface – it cannot take the water, so the water must just run off and down streets and into homes.
Add organic matter to the soils. They will hold more water, yet won’t become waterlogged.
Is there anything else we can do?
Don’t build houses on floodplains. This may alleviate housing shortages in the short-term, giving whichever Government bragging rights over what they have achieved while in power, but the problems will arrive later on… and money will still have to be spent on rebuilding, on rehousing, on healthcare for people who are having to live with stagnant water around their ankles. The costs will always catch up with us in one form or another.
Concrete and dredging are all very well – but we need to slow water down, and give it places to sit and be held when it does become to much.
We need to plant trees, we need to cherish and protect our floodplains, and we need to look after our soil.
More ways to manage the landscape can be found in these books… get them now, you will learn a huge amount!
There seems to be some underhand shenanigans going on here. Bob Flowerdew is threatening to resign. We face losing the UK’s cornerstone organic garden. So please take a look at what is going on via the Facebook group…. go on! Go Now! Save Ryton Organic Gardens!
Today we will be looking at Garden Design Trends in 2018. Just so you are in the know about what is cool and what is not cool in the 12 months ahead…. For the past like, million years I have shared my thoughts on what the gardening industry tell us the latest trends are going to be. If you are interested, you can see here the garden design trends for 2017. Or take a peek at my favourite of all the posts I have written – Alternative Garden Design Trends. This is my individual take on what the latest garden design …
Well now, this is interesting…. UK Plans 50 Million New Trees in Northern Forest Likely? See the pitfalls? We love the idea and wholeheartedly support as much tree planting as possible. But are seriously doubtful that this is more than a sticking plaster solution to England being so vastly ‘under-treed’…. or should that be ‘overfelled?’ Yet whether this idea happens or not, all we ask is that you please make sure you plant as many trees as you can in your garden!