1. The 4th annual
國際樹木會議(香港)
INTERNATIONAL ARBORICULTURE SUMMIT – HONG KONG
presents
Balancing Trees and Urban Spaces
November 17-19, 2011 in Hong Kong
with special keynote speakers
Professor Edward Gilman and Dr. Gary Watson
Additional speakers include Professor Jason Grabosky, Professor Francesco Ferrini, Professor NING Zhu
Hua, Dr. Alexia Stokes, Lauren Lanphear, and Sharon Lilly
This is not just a conference, but rather a series of educational programs.
A booklet of all presentations will be included for each attendee for
reference and study.
Last year, with Professor Gilman as the keynote, we focused on trees
above ground – proper young tree pruning methods, etc…
The focus of this year’s conference will be on trees
below ground - tree root development, soils, and the
complexities of the urban environment. The purpose of this
conference is to acquire a better understanding of how roots grow
in the urban environment and how to best manage balancing trees
and urban spaces. Attendees will receive valuable practical
information regarding how to best manage planting strategies in the urban environment, how to choose the
right tree for the right place, and how to best manage and evaluate the mature trees, and their root structures.
Who Should Attend?
Municipal and private sector arborists, landscape architects, property managers and developers, city planners,
park managers, nurserymen, tree care practitioners, landscape contractors, students
IASHK 2011 SCHEDULE
The schedule may be subject to some minor changes in topics or timing.
Thursday, November 17th (7.5 hours, 7.5 potential CEUs)
Location: Scouts Centre, BP International House, Austin Road, Kowloon
Time: 8:30am – 5:30pm
8:30 – 8:55 Registration (promptly closes as we do not want to disturb speakers with late arrivals)
9:00-12:00 Giving Root Systems a Head Start
A workshop previously developed for The Landscape Below Ground III: International Workshop on
Tree Root Development in Urban Soils held at the Morton Arboretum in 2008.
Edward Gilman, University of Florida, and Gary Watson, The Morton Arboretum
12:00-1:00 Lunch (lunch is not provided on this day)
1:00-3:00 Giving Root Systems a Head Start (continued)
3:30-6:00 Kowloon Park Roots Review (review of various trees including wall trees)
Division into various smaller groups to accompany a speaker in field discussion.

2. Friday, November 18th (8 hours, 8 potential CEUs)
Location: Suen Douh Camp, Sun Uk Chuen, Lung Yeuk Tau, Fanling, NT
Time: 8:30am – 5:30pm
Attendees to be split into 2 smaller groups, sessions will be repeated morning and afternoon for each group
to attend ALL topics.
Session I
8:30–10:00 Designed Soils: Root Models Under Pavement - Jason Grabosky
Lecture and field training, a field review of an actual tree after removal of concrete around the base and
potential Air Spade use.
10:00-10:15 Tea Break
10:15-12:00 Tree Root System Response to Fine Root Desiccation and Woody Root Severing – Gary
Watson
Lecture and field training, a field review of an actual uprooted tree root plate.
12:00-1:00 Lunch (lunch is provided for all attendees)
Session II
1:00-1:45 The Biomechanics of Tree Root Anchorage – Alexia Stokes
1:45-2:30 Root Crown Form, Root Defects & Tree Stability – Edward Gilman
2:30-2:45 Tea Break
2:45-3:15 Case Studies of Major Tree Preservation Projects – Lauren Lanphear
3:15-3:30 Remediating Urban Soil Through Bio-based Mulch Amendments – NING Zhu Hua
3:30-4:15 Sustainable Urban Tree Management – Francesco Ferrini
4:15-5:00 Topic and Speaker to Be Announced
5:00-5:30 The New ISA Best Management Practices for Tree Risk Assessment – Sharon Lilly,
Director of ISA Education Goods and Services
Saturday, November 19th (8 hours, 8 potential CEUs)
Location: Suen Douh Camp, Sun Uk Chuen, Lung Yeuk Tau, Fanling, NT
Time: 8:30am – 5:30pm
Attendees to be split into 2 smaller groups, sessions will be repeated morning and afternoon for each group
to attend ALL topics.
Session I
8:30-10:00 Various Tree Planting Topics: Impact of Container Root Ball Pruning Strategies on
Root System Quality and Stability, Planting Depth Affects Root System Quality, etc… – Edward
Gilman and Gary Watson
Lecture and field training, includes the actual planting of a number of trees and discussion of the correct
method of planting as well as the negative future affects of incorrect tree planting.
10:00-10:15 Tea Break
10:15-12:00 Various Tree Planting Topics (continued): Getting the Roots Right – Gary Watson and
Edward Gilman
Continued lecture and field training, includes a field review and discussion of various trees in the area.
12:00-1:00 Lunch (lunch is provided for all attendees)

3. Session II
1:00-1:45 Designed Soils: Space & Impacts on Urban Canopy Planning & Management – Jason
Grabosky
1:45-2:15 Development of the Chinese Arboriculture Glossary of Terms – NING Zhu Hua
2:15-2:45 Trees for the City of the Future – Francesco Ferrini
2:45-3:00 Tea Break
3:00-3:30 Speaking From Experience: 100 Year Old Tree Care Company – Lauren Lanphear
3:30-4:15 Tree Root Response to Mechanical Stresses – Alexia Stokes
4:15-4:45 Launch of the New ISA Online Learning Center – Sharon Lilly
4:45-5:30 Deep Root® Applications for Hong Kong – Jason Grabosky
5:30 Conference Conclusion
IASHK 2011 Speakers
Professor Edward Gilman (Keynote Speaker)
Associate Professor, University of Florida- Environmental Horticulture Department,
Gainesville, FL, United States. Ed Gilman received his doctorate from Rutgers
University. He has been on the faculty of the Environmental Horticulture Department at
the University of Florida–Gainesville as professor since 1986. He teaches arboriculture
and conducts research on planting and pruning. He is the author of six books on trees
and landscape plants, many software programs, and websites that have received numerous awards. Gilman wrote An
Illustrated Guide to Pruning, which is in its second edition. He is a past president of ISA’s Florida Chapter.
Dr. Gary Watson (Keynote Speaker)
Dr. Watson is the Senior Research Scientist at Morton Arboretum in Illinois.
Research Interests: The central interest of the urban tree root research program is to
understand how to keep trees healthy in urban landscapes by maintaining a healthy balance
between the crown and the root system. Trees must cope with challenges in urban soil
environments that are not encountered in nature. We need to know how root systems react
to these, and how to minimize them. Two approaches are used: attempting to direct more
of the tree's resources towards root growth; and improving the soil environment so that it is
more favorable. Dr. Watson joined the Morton Arboretum research staff in 1986; Adjunct Professor, University of
Illinois Department of Natural Resources and Environmental Sciences; Past President of International Society of
Arboriculture, the Arboricultural Research and Education Academy, and the Illinois Arborist Association; Chair,
Green Industry Working Group on Structural Root Depth 2003-present.
Professor Jason Grabosky
Dr. Grabosky is an Associate Professor at Rutgers University. A Central New York native,
Dr. Grabosky is the John and Eleanor Kuser Faculty Scholar in Urban and Community
Forestry in the Ecology Evolution and Natural Resources Department at Rutgers University
School of Environmental and Biological Sciences. He is the primary inventor on a US patent
for a modified soil that enhances root growth in urban environments. His research focuses on
tree-pavement design and management issues. He teaches classes in tree care and urban
forestry.
Professor NING Zhu Hua
Dr. Zhu H. Ning is a newly elected ISA board member and is a Professor in urban
forestry at Southern University (SU), Baton Rouge, LA. She teaches urban forest
ecophysiology and nutrition of urban tree to graduate students, and urban forestry, forest

4. science, and tree physiology to undergraduate students. Along with all urban forestry faculty members at SU, she
played an important role in the urban forestry programs establishment at B.S., M.S., and coming Ph.D. degree levels.
She is also the Project Director of many research projects funded by the US Department of Agriculture, US
Environment Protection Agency, National Aeronautics and Space Administration, Department of Energy, and the
National Urban and Community Forestry Advisory Council. Dr. Ning’s international collaborative efforts including
serving as invited expert in the areas of the Chinese State Forestry National Natural Forests Protection and Chinese
Academy of Sciences urban forestry research.
Professor Francesco Ferrini
Ph.D., Professor of Arboriculture, University of Florence, Department of Horticulture, Sesto
Fiorentino, FI, Italy Full Professor (Chairman) at the Department of Horticulture University
of Florence (Italy) -- He has published more than 150 scientific and technical papers in
Italian (82) and in English (69) in international referred and nationwide journals. He has
given more than 90 talks in numerous international and national congresses. Francesco is
also the immediate past Director of the ISA Italy and is an ISA board member.
Dr Alexia Stokes
Dr. Stokes received her PhD from the University of York UK in 1994. In collaboration with the
Forestry Commission in Edinburgh, she studied the growth responses of young trees subjected
to wind loading. Alexia’s particular interest was to understand how tree growth and
architecture adapts to mechanical stresses, with a special focus on the root system. After post-
doctoral study in Germany, examining root wood strength, Alexia began work at INRA,
Bordeaux, France. Working principally on Maritime pine, Alexia and colleagues investigated tree root anchorage with
regard to wind storms. In 2005, Alexia began work in China for 2 years, studying how vegetation (plant root systems)
could be used to fix soil on slopes against landslides and erosion. She is now based at INRA, Montpellier, France and
continues her work on tree mechanics and slope stability in the French Alps and southern China. She has also done
research projects with Forestry Research Institute Malaysia (FRIM). Recent interests include the ecophysiology of
tree root growth at high altitudes and in winter, as well as an understanding of global patterns in root functional traits.
Lauren Lanphear
Mr. Lanphear served as the President of the International Society of Arboriculture (ISA) from
2007-2009. He also served as president of TCIA: Tree Care Industry Association in 1993 and
received the TCIA Award of Merit in 2004. He is also the President and owner of the Forest
City Tree Protection Co., Inc, in South Euclid, Ohio. The firm, founded by his grandfather in
1910, celebrated its 100th Anniversary in 2010. His firm has received Excellence in
Arboriculture Awards for the following projects: Award of Distinction (1999) (For preservation
of historic White Oak tree on grounds of the St. Gregory the Great Church in South Euclid.)
Judges Award (2000) (For efforts to prepare 1998 Rockefeller Center Christmas Tree.) Arbor Day Award (2000)
Sharon Lilly
Sharon Lilly, Director of Educational Goods and Services at the International Society of
Arboriculture, is a past president of ISA and former chair of the ISA Certification Board. She
has more than 25 years experience in the commercial sector as a climber and tree service owner,
and has also taught arboriculture at the college level. In addition to authoring and producing the
interactive CD-ROM series, she is the author of several popular books, including the ISA
Arborist Certification Study Guide, The Tree Climbers’ Guide, The Tree Worker’s Manual, and
Managing Golf Course Trees, as well as countless articles, workbooks, and other publications.
She has been instrumental in directing and producing many arborist training videos including the ArborMaster
Training Series, Basic Training for Tree Climbers, The Art and Science of Practical Rigging, and The Legends of
Arboriculture. Sharon continues to write and conduct seminars on many aspects of arboriculture.

5. IASHK 2011 Registration Form
Hong Kong, November 17-19, 2011
(Please choose the option you prefer. Place an X on the line next to each program you would like to attend.)
Your early registration is greatly appreciated! Registration deadline is November 1st
Special Discounts, Please Select Only One:
Previous Attendee (10% Off) Full Time Student (50% Off) NGO/Green Group (20% Off)
You must include documentary proof with the registration form. If you are a previous attendee of a program, please
let us know which one. There is limited seating for students and NGO/Green Group discounts.
November 17th–19th , 2011 IASHK 2011 Conference
Full Conference Pre-Registration HK$4200 Full Conference Walk-in Registration HK$5200
Single Day Pre-Registration HK$1600 Single Day Walk-in Registration HK$1900
Thank you for your interest, and we look forward to seeing you at the conference! Please send your registration form,
documentary proof (for discounts), and payment to our address or scan and email to: info@ias.hk
Please note that registration is only complete once payment is received.
Policies: Please note that we reserve the right to change the program outline and/or venue if due to circumstances
beyond our control. There will be no refund for withdrawal once registration is complete. Attendees may not elect
others to attend in their place unless requested and agreed to 1 week in advance of the conference.
Methods of Payment
By Direct Deposit (please email info@ias.hk with a By Check (please mail the check along with the
scanned copy of the deposit receipt once deposited) registration form to the following address)
Standard Chartered Bank (Hong Kong) Limited Asia Tree Preservation, Ltd.
66 Nathan Road Branch Basement Shop B1 26A Siu Hang San Tsuen, 1/F
G/F & 1/F, 65-70 Nathan Road Tsim Sha Tsui Fanling, NT
Account Name: Asia Tree Preservation Limited Hong Kong
Savings Account: 57411621820
Registration Information
(Companies registering multiple people, please include a spreadsheet of attendees with the below information
for each person) (Please fill out all fields)
English Name (or pinyin): _________________________ ISA Certification Number: _________________
Company/Organization: ____________________________ Name for Conference Badge: __________________
Address: ______________________________________________________
City: ______________________ Phone: __________________ Fax: _________________
Email: __________________________ your confirmation email and instructions will be sent to this address.
T-shirt Size (important!) Please circle 1 choice (measure across the
chest in inches just under the arm): A T-shirt will be included.
www.ias.hk info@ias.hk Phone: 26695126 Fax: 26695127