Destruction of biodiversity for the sake of cleanliness

[Ahmed]

If I understood everything , late mowing associated with the export of plants is intended to favor other plants than only grasses.

As far as butterflies are concerned, I only observed a few rare lemons in early spring, then some cabbage wilts afterwards ...

[VetusLignum]

Attention, there may still be some imperatives, for example the fight against the spread of the thistle, which impose these mowing.

The thistle is indeed a challenge, but to fight against it in non-agricultural areas (roadside, wasteland ...), the best strategy is probably to let nature, so that a wide variety plant settles, and suffocates it.

repeated work with a mower working too close to the ground (creating areas of bare soil) and the use of weed killers favor Canada Thistle with the best conditions for development.

you must mow instead of grinding, have a cutting height of more than 8 cm
http://www.me77.fr/IMG/pdf/seme_chardons2015web_bd.pdf

[Ahmed]

Late mowing with removal of the material avoids enriching the soil, which favors a greater plant diversity (otherwise the area "gentryfies" and only a very small amount of demanding species thrive).

[izentrop]

The problem too, for the sake of cleanliness and economy, most of the time, hedges are cut with the same flail mill as the grass.
The branches are broken and are the gateway to diseases and fungi. After that we are astonished that elms and ash trees are disappearing. http://www.promhaies.net/news/doit-on-p ... haie,8853/


Invasive plant issue, the knotweed of Japan is gaining ground. I know several places where it has replaced all the other wild plants. http://biologie.ens-lyon.fr/ressources/ ... e-du-monde

Late mowing with removal of the material avoids enriching the soil, which favors a greater plant diversity (otherwise the area "gentryfies" and only a very small amount of demanding species thrive).

How to deplete a soil would be an advantage?

[Ahmed]

This is what an old botanist explained to me: plants have developed the ability to adapt to almost all environments, but there are differences in behavior between some, a bit like between our vegetables and wild plants (good , the comparison is lame, but that's the idea ...) and therefore a rich soil will disqualify the many plants most able to adapt to Spartan conditions and the "greedy" will suffocate everything ...

Note: without this competition, the most frugal would probably be "happy" on rich soil ...

[VetusLignum]

The problem too, for the sake of cleanliness and economy, most of the time, hedges are cut with the same flail mill as the grass.
The branches are broken and are the gateway to diseases and fungi. After that we are astonished that elms and ash trees are disappearing. http://www.promhaies.net/news/doit-on-p ... haie,8853/

Specialist hedge plants (such as hawthorn) are very resistant to this hype.
If ash trees and elms die, it is for other reasons: importation of diseases, and lack of genetic diversity for elm (which has been much cloned).
https://link.springer.com/article/10.10 ... 018-9640-x

Invasive plant issue, the knotweed of Japan is gaining ground.
I know several places where it has replaced all the other wild plants.

For me, the best way to fight the Japanese knotweed in the wild is to have trees dominate and shade it.
Otherwise, you have to see the good side, it's an edible plant; so we may be glad to have it in case of famine.

http://biologie.ens-lyon.fr/ressources/ ... e-du-monde

Late mowing with removal of the material avoids enriching the soil, which favors a greater plant diversity (otherwise the area "gentryfies" and only a very small amount of demanding species thrive).

How to deplete a soil would be an advantage?

Because some plants thrive in poor soil, while others thrive in rich soil.
That said, I do not really agree with this idea of ​​kidnapping
- because it could take years to deplete the soil
- because it is not favorable to anecic earthworms, which can in the long term decompact the soil in depth
- because I'm sure there are better plants than thistles to take advantage of nitrogen-rich soil

[Christophe]

And if we relaunched the idea of ​​the Wild Garden Contest (which was not really followed at the time except by me ... so of course I GAGNAISSSS !!)

It was here: gardening / contest-gardens-wild-finally-almost-t8044.html

[to be chafoin]

Didier's video (in connection with that of "Nature Destroyed") gave it seems to me two avenues to answer the question of poor / rich soils and late mowing to promote biodiversity.

- A late mowing allows a maximum of plants to mature, flowering and seed, so it allows a greater dissemination. Conversely, early mowing favors grasses (tallent).

-Low litter (and therefore poor soil?) Causes early flowering of plants at the expense of biomass. But so I wonder if removing mowing remains is really a good idea ...

[Ahmed]

On the question of the impoverishment of the soil, it would be better to start from the idea of ​​a normality of this situation and the adaptation of many species that adapt to it, as they also do very well of compact soils. The underlying idea of ​​this orientation is that of a restoration from a grazing situation, and therefore of a highly anthropised system oriented towards a few species of mixed grasses of opportunistic plants (such as thistle, rumex, nettle...).
There is (to a certain extent) a disturbing parallel with social systems: the extreme wealth of a few endangers the equilibrium of technologically more rudimentary societies when a connection is established between them. .

[Moindreffor]

On the question of the impoverishment of the soil, it would be better to start from the idea of ​​a normality of this situation and the adaptation of many species that adapt to it, as they also do very well of compact soils. The underlying idea of ​​this orientation is that of a restoration from a grazing situation, and therefore of a highly anthropised system oriented towards a few species of mixed grasses of opportunistic plants (such as thistle, rumex, nettle...).
There is (to a certain extent) a disturbing parallel with social systems: the extreme wealth of a few endangers the equilibrium of technologically more rudimentary societies when a connection is established between them. .

I have never seen a mowing or not where the mown grass was removed, and not compared the meadows protected from the sides of Didier, are always productive despite a mowing, it is more in the explanation given by Didier and picked up by looking for the answer
more mature flowers so more varieties of plants possible, rely on the impoverishment of the soil, it is in my opinion illusory, it's a bit like wanting to empty the sea with a bucket or a fool