Preparing European forests for climate change

[cortejuan]

Hi,

I open this new thread on a topic that seems important to me, the abrupt evolution of our forests due to climate change, the French, the Germans are interested and begin to acclimatize new species to replace those that will disappear. the evolution is actually rather fast because if the trees have a great capacity of adaptation and therefore are often very able to resist a few more degrees, they are totally disarmed vis-a-vis the new parasites, that they are of animal origin (especially insects) or of plant origin (mostly of fungal origin).

At home, the oaks are dying attacked in June by powdery mildew. What is remarkable is that the attack concerns the oak coming out of the glans and the 50 tree ...

So big replacement work and it really urges.

Here are two sites that cause the thing:

http://www.ladocumentationfrancaise.fr/ ... ndex.shtml

http://www.fne.asso.fr/fr/un-livre-vert ... ws_id=1575

a third that I can not copy with a report in pdf titled

"Study of the impacts of climate change on forests
European Union and possible adaptation measures. "

So those who do not believe in climate change that they come to my home, they will check on foot.

cordially

[sen-no-sen]

It seems naïve to me to want to "prepare" the environment for future changes.
Besides, there is not really any scientific consensus on the nature of the future climate.
It could be that due to the decrease of the influence of the golf course of the harsh winters followed of very hot summer is put in the future decades in France.
In case of sudden changes, it must be understood that there will be extinctions of animal and plant species in large numbers ... and we are on the list.

[Ahmed]

We are already totally destitute to determine which species will resist a few more degrees and especially the water deficit that implies, but to cope with unpredictable and erratic climatic events, there it is downright impossible mission.

It is obvious that climatic changes have already taken place in the past and that nature is always adapting and finding a new balance, but for this it takes time and the "novelty" is the massive presence of man who will find it difficult to cope with these developments.

From the forestry point of view, clearly, we do not know what it would be good to do, or even if, knowing it, it would be possible ...
The first tracks envisaged in recent years are already largely invalidated ...

[cortejuan]

Hi,

France and Germany are working on it but it is clear that the approach can not be global, we are forced to treat each pathology separately, for example, the oak powder is making disappear the oaks of the east from France below 800 meters of altitude and we see more and more American oaks that they resist very well to powdery mildew, unfortunately their wood does not have the quality (it seems) wood native oak. Studies are undertaken on Hungarian oaks, I believe, so the organizations are working on the subject and the transformation is already underway ...

That there are failures is obvious, whether there are risks in terms of biodiversity or the introduction of plant pests is also true.

Personally, I compare behaviors of native oaks and American oaks (red, scarlet, marsh) there is no photo. The American is doing well and may substitute for the native.

What is important to note is that the disappearance of native species may be faster than expected because it will not be the inability of the plant to adapt, it will be the appearance of parasitosis that they can go very quickly and decimate a given species in about fifty years. And that's catastrophic.

cordially

[chatelot16]

it's simple, you have to maintain diversity! let all kinds of different trees grow and we'll see what will work

in France we are lucky, we are a temperate country ... we find more resistant trees hot from the south, and more resistant to the cold from the north ... whatever happens we will not be a desert

for the sahel it's another story! if it is too hot there is no other vegetation available

in France a simple diversity should allow the vegetation to adapt itself ... there is only where we made the uniform planting that we risk problems

the more interesting question is the Nordic countries ... where there was only snow, and where it will become possible to grow trees ... nature will do it alone, but we can win time helping him a little

Greenland was a green land, at the time it was named: we could come back to it

[Janic]

chatelot hello
it's not that easy! There is symbiosis between plant and animal; However, climate change is causing wildlife to move up, but the flora is not the same migration, so there is an ecological shift and the risk of disappearance of both flora and fauna. Every time or since the human has wanted to repair an ecological error by a partial measure, it has often engendered another ecological error even more serious. You can not, by tinkering, do in a few years what has taken millennia to balance.

[chatelot16]

of course there is the risk of making mistakes ... but there is indeed implantation of completely artificial vegetation that looks natural a century later

in France a lot of landscape, and forest are not natural at all and works well

experimenting with new planting to anticipate climate change will only increase diversity, and give more choices to nature

[sen-no-sen]

in France a lot of landscape, and forest are not natural at all and works well

In France almost all natural areas are no longer of origin.
There are only a few remnants of primary forest, but that is almost nothing.
Moreover, the forest areas are very fragmented, and foreign species are not rare, fruit of a long period of development that dates back to antiquity.

The Landes forest for example - the largest forest in Western Europe - is the work of man (XNIXXth century), nearly a million ha!

[cortejuan]

Hi,

in fact, I think you're all right ... Biodiversity is the basis and leaving the maximum freedom to nature is probably the best solution, but it takes time and the man is a hurry.

The acacias are part of the landscape today and fortunately they are for the stakes of food, but they are invasive plants.

The heath forest is one of the great human modifications of its biotope. Was it such a good idea? Monoculture is always catastrophic for biodiversity, so yes, we must intervene and prevent changes, no we must not, following a particular report of a technocrat more or less green, embark on an upheaval with consequences all to made unpredictable.

But the change is there, the beetle has understood, he who arrived in Paris in the 40 years and thrives in Moscow currently waiting to go even further.

cordially