Navigation Links
Taking the piste out of Alpine vegetation

Major changes need to be made to the way ski pistes are managed if delicate alpine plants are to be protected, ecologists have warned. According to new research published today in the British Ecological Society's Journal of Applied Ecology, machine grading and artificial snow production is causing significant changes in the number and type of plant species in the European Alps.

Sonja Wipf of the Swiss Federal Institute for Snow and Avalanche Research and colleagues from the University of Zurich and the University of Potsdam in Germany examined plant species at 12 Swiss ski resorts. They found that, compared with off-piste plots, there were 11% fewer plant species on ski pistes, with woody plants and early-flowering species being most badly affected.

Machine grading of ski slopes caused most damage to vegetation, with machine-graded slopes having five times more bare ground than ungraded pistes. And, say the researchers, this damage is long lasting. They found pistes that had been machine graded as long as 30 years ago and re-sown with plant seed had still not recovered. "Machine grading constitutes the most drastic vegetation disturbance on ski pistes. It should be avoided wherever possible, as it causes lasting damage that cannot be overcome by revegetation measures, particularly at higher altitudes," they say.

They also measured the impact of artificial snow on vegetation and found that this causes changes in species composition, with snowbed and late-flowering species increasing in abundance while wind-edge and early-flowering species declined. This is due to delayed snow-melt in areas covered with artificial snow, and the fact that artificial snow is made from river and lake water which contains more minerals and other chemical compounds than natural snow.

The findings are particularly important as ski resorts begin to feel the heat of climate change, developing higher altitude runs and using more artificial snow to keep skiers hap py. As this happens, Wipf and her co-workers want ski resorts to become more environmentally sensitive.

"We recommend that environmental goals should be established in ski resort management. In particular, we recommend carefully recording the vegetation in a specific area before any intensification of use as a ski piste, and complete avoidance of areas with vegetation of articularly high conservation value," they say.

Some alpine ecosystems are extraordinarily rich in species, but they are also sensitive and susceptible to changes in land use and climate.


'"/>

Source:Blackwell Publishing Ltd.


Related biology news :

1. HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs
2. Taking Aim With Nanoparticle PEBBLEs
3. Taking a flying jump
4. Taking a bite out of a fellow worker helps wasps recruit new foragers
5. Taking evolutions temperature: Researchers pinpoint the energy it takes to make a species
6. Taking the wrinkles out of motoneuronal disease
7. Taking chips to the next level of gene hunting
8. Cancer vaccines -- Taking a jab at cancer by stimulating the immune system
9. Deep sea algae connect ancient climate, carbon dioxide and vegetation
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/19/2017)... 19, 2017 The global military ... is marked by the presence of several large global ... by five major players - 3M Cogent, NEC Corporation, ... for nearly 61% of the global military biometric market ... the global military biometrics market boast global presence, which ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/5/2017)... , April 5, 2017  The Allen Institute ... Allen Cell Explorer: a one-of-a-kind portal and dynamic digital ... 3D imaging data, the first application of deep learning ... human stem cell lines and a growing suite of ... platform for these and future publicly available resources created ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... 10, 2017 , ... Dr. Bob Harman, founder and CEO of VetStem ... The event entitled “Stem Cells and Their Regenerative Powers,” was held ... Harman, DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief ...
(Date:10/10/2017)... , Oct. 10, 2017 SomaGenics announced the ... NIH to develop RealSeq®-SC (Single Cell), expected to be ... small RNAs (including microRNAs) from single cells using NGS ... the need to accelerate development of approaches to analyze ... "New techniques for measuring levels of mRNAs ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... 13 prestigious awards honoring scientists who have made outstanding contributions to ... symposium during Pittcon 2018, the world’s leading conference and exposition for laboratory science, ...
(Date:10/9/2017)... ... 09, 2017 , ... The award-winning American Farmer television series will feature 3 ... airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ten ... to continue to feed a growing nation. At the same time, many of our ...
Breaking Biology Technology: