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Interpreting mountain treelines in a changing world


MS Teams

Date & Time

21 March 2022


Nakul Chettri & SP Singh

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Upon registration, you will receive an email, which will guide you on how to join the book launch.


About the launch

In conjunction with the International Day of Forests on 21 March 2022, we are supporting the virtual launch of the book ‘Interpreting mountain treelines in a changing world.’ The book, authored by a team of experts* and led by Prof. Surendra P. Singh, draws upon studies on mountain treelines from all around the world and recent research in the Indian Himalayan Region. The study was supported under the National Mission on Himalayan Studies, Ministry of Environment, Forests and Climate Change, New Delhi, and involved 11 Principal Investigators from six research organizations. ICIMOD supported the publication of this book and provided technical and editorial inputs.

With this book launch, we aim to make the public familiar with treeline ecosystems and urge policymakers to treat treelines as a separate entity of study, management, and conservation, with an emphasis on transboundary cooperation.

This year’s theme for International Day of Forests is “Forests and sustainable production and consumption.” The day celebrates and raises awareness of the importance of all types of forests and their sustainable use.


  • Share our understanding of Himalayan treelines
  • Emphasize the need for collaborative research and transboundary cooperation



Treelines in the mountains represent a conspicuous physiognomic discontinuum, where forests give way to small herbaceous plants of alpine grasslands. Due to cold temperatures at a certain elevation, plants fail to grow woody and tall (>3 m). Widely thought to be constructed by heat deficiency, treelines have received significant attention in the wake of climate change, as mountains face the impacts of climatic warming. The highest treelines of the Northern Hemisphere are in the Himalayas, which stretch across thousands of kilometres but are under-researched.



14:00–16:30 (NPT); 13:45–16:15 (IST)

Time (NPT) Activities Speaker/facilitator
Opening session

Moderator: Laurie Vasily, Head of Knowledge Management and Communication, ICIMOD

14:00–14:10 Sign-in All
14:10–14:18 Remarks P.P. Dhyani, Chairperson, Central Himalayan Environment Association (CHEA), India

Brij M.S. Rathore, former Chief Policy Advisor, ICIMOD

14:18–14:28 Welcome remarks and book launch Pema Gyamtsho, Director General, ICIMOD
14:28–15:00 Key highlights of the book – Interpreting mountain treelines in a changing world Surendra P. Singh, Coordinator, NMHS-IHTRP, CHEA
15:00–15:10 Q&A and summary Laurie Vasily, ICIMOD

Brij M.S. Rathore, former Chief Policy Advisor, ICIMOD

 Technical session ITreeline research as a common agenda for the HKH – Panel discussion

Moderator: Wu Ning, Chinese Academy of Sciences (CAS)

15:10–16:10 Panel discussion and Q&A session Surendra P. Singh, CHEA, India

Eryuan Liang, Director, Key Laboratory of Alpine Ecology, CAS, China

Narayan Prasad Gaire, Associate Professor, Tribhuvan University, Nepal

Shi Peili, Professor, Key Laboratory of Ecosystem Network Observation and Modelling, CAS, China

Changa Tshering, Principal Forestry Officer, Department of Forest and Park Services, Bhutan

16:10–16:30 Summary and way forward Nakul Chettri, Regional Programme Manager – Transboundary Landscapes, ICIMOD

For further information, please contact the author Surendra P. Singh (spsecology@gmail.com) or Nakul Chettri, Regional Programme Manager, Transboundary Landscapes, ICIMOD (Nakul.Chettri@icimod.org).

*Subrat Sharma, Ladakh Regional Centre, GBPNIHE
Rajesh Joshi, Sikkim Regional Centre, GBPNIHE
Late R.S. Rawal, GBPNIHE
Prof. Zafar Reshi, Kashmir University
Devendra Kumar, Sikkim Regional Centre, GBPNIHE
Ashish Tewari, Kumaun University
P.S. Ranhotra, BSIP Lucknow
Bhupendra Adhikari, Wildlife Institute of India
Pankaj Tewari, CHEA

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