Wednesday, December 21, 2011

ISA HK/China --- Consulting Arboriculture ("顾问树艺师" 行业)

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树艺知识的发展从 ISA 的1924年开始到现在, 已经走过了88个年头, 当中创造了大量的树艺人才为社会服务, 包括了从1994开始的 '注册树艺师' 牌照制度. 这当中的小部份专业人员, 又自我组织了几个 "顾问树艺师学会", 成为行业当中的最高荣誉.

"顾问树艺师" 的主要服务, 是提供最高层次的树艺知识监证, 和详尽资询给基层树艺工作者和公众, 有点像专科医生提供顾问服务给普通科医生一样.  "顾问树艺师" 很多都是由基层做起, 通过 "边做边学边考试" 的方式不停的往上爬, 经过多年努力以后, 才能进入这个树艺行业的最高境界.

通常挂上 "顾问树艺师" 名衔来执业的人, 都会加入某个 "顾问树艺师学会" 来厘定自己的身份. 国际上比较有名的 "顾问树艺师学会" 目前有三个, 它们是:

1. 美洲顾问树艺师学会 ( --- 在1960代成立, 是目前 "顾问树艺师学会" 当中最大和历史最悠久的, 分两级会员制合共600多人, 最高牌照是 "Registered Consulting Arborist (RCA)" . 目前尚在世的 RCA 大概只有200人, 当中只有本分会长欧永森一人是华人和亚洲人. 这学会接受任何人仕加入.

2. 英国顾问树艺师学会 ( --- 在2003年从英国的另外一个树艺组织叫做 AMIUG 哪里产生过来, 主力为英伦三岛的树艺行业服务, 没有听过招收远东人仕加入, 挂靠于 ISA UK & I 分会底下, 最高牌照是 "Professional Member 专业会员".

3. 澳洲顾问树艺师学会 ( --- 在2003年由澳洲的一批专业树艺从业员成立, 会员人数不达100人, 最高牌照是 "Accredited Member 认证会员", 招收海外会员, 本分会长欧永森是其 "认证会员", 和目前唯一的海外会员. 它的牌照在英联邦国家里普遍获得承认.

以上三个学会都只用英语作通信, 当中又以 RCA 必须前往美洲大陆接受指定受训和考试, 这对亚洲人来说是有一定困难.

以我国的现状看来, 国内目前连最基本的 "注册树艺师" 牌照都没有, "顾问树艺师" 的出现可能会是 "注册树艺师" 出现后10年以上的事.  以目前国内树木数量比人口还要多的情况看来, 树艺行业是一种基本社会建设, 而短时间内 "顾问树艺师" 的供应还可能要靠 "进口", 这可能是一个现实吧 .

但愿国内能尽快建立起符合国情的树艺行业和制度, 为此本分会将会提供一切协助.


美洲顾问树艺师学会 顾问树艺师号 RCA#497 (

澳洲顾问树艺师学会 顾问树艺师号 ACM 0412011 (

资深树艺师/注册攀树师号 HK-0174BT (
执业树艺师号 IPA-010908 (

不深入诊断和参照研究来批出处方, 是专业失当。 ”

“速成出来的树木评估员, 只会作出胡乱的树木评估。 大自然会决定成败。 ”

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Dear Station Members,

Consulting Arboriculture, a special branch of arboricultural practice, is sometimes regarded as the pinnacle of the profession, with their practitioners having years of working experience in the field, & possessing advanced knowledge to give consultation to their clients, be it in assessment, supervision, evaluation, protection, or even legal advice. Consulting Arborists are usually regarded as the Creme de la Creme of the industry. Like tree climbers, they are a special breed, & hold themselves to a very high standard of practice & moral standards in the profession.

A lot of the Consulting Arborists began their career in the fundamental parts of the industry to work the basics. Some started off as tree climbers. Through their time in the profession, they learn & progress themselves with collection of credentials to advance their capabilities. Academic qualifications alone are usually not the only criteria to become a Consulting Arborist. What are treasured more are the working experience & practical knowledge to resolve confronted issues. The end product of consultation is usually in the form of a written report, & sometimes verbal presentation. Communication skill is therefore a strong ability of the Consulting Arborists throughout the world.

To be called a Consulting Arborist in the industry, this practitioner would usually attach himself/herself to a professional body for public recognition. There are three well known Consulting Arborist Societies in the world. They are:

1. The American Society of Consulting Arborists (ASCA, --- This is probably the oldest & the biggest Consulting Arborist Society in the world set up in the 1960's with around 600 members currently. Most members are ISA Certified Arborists, & they have strong connection to ISA Chapters in their education programs & activities. The highest membership class there is the Registered Consulting Arborist (RCA) , where only around 200 of them are still living. ASCA accepts overseas membership & there are our Station Members in it.

2. The Consulting Arborist Society of the UK (CAS, --- This is a British institute serving primarily the British Isles under their laws & regulations. The CAS evolved from the AMIUG of 1995 & is affiliated to the ISA UK & I Chapter. The Professional Member class of membership is the highest, & the requirements demand mainly British qualifications & working experience. ISA HK/China is not aware of any of our Station Members joining the CAS so far.

3. The Australian Institute of Consulting Arboriculturists (IACA, --- This was set up in 2003 by a group of Australian experts to advance the consultation profession in their country. The IACA primarily serves Australian interests but is willing to recruit overseas membership to share their knowledge & experience. Australian trees are planted widely in HK & Southern China. HK is also the only place in China to use English as an official language. Civil Servants of HK frequently go to Australia for various types of training. The connection is apparently there. The highest class of membership in IACA is the Accredited Member (ACM) which requires a high level of knowledge & expertise to qualify entry. It is known to us that several Station Members have begun enquiries to join the IACA already .

For our Station Members in HK who want to join any of the above societies, please kindly go online to enquire. ISA HK/China has no preference on any of them, & would regard every one is just as good & professional. Please do note the requirements in attaining the highest status in each, like going to North America to attend an Academy for the RCA in ASCA. The British CAS also demands a string of British qualification & experience. The ACM of the IACA appears to be more "user-friendly" to our HK candidates, although strict requirements would need to be met in qualification & experience.

For your information, the Station Manager Sammy Au has just become an ACM of the IACA recently. He is their first overseas ACM & is currently the only Chinese. For those who wish to join the IACA or ASCA, it may help to mention ISA HK/China for their statistics. ISA HK/China works in good term with the IACA & the ASCA.

It is only a matter of time that Consulting Arboriculture will grow in our territory. Personal advancement will push it. It is also not in conflict with the ISA Mission.

Looking forward to more Consulting Arborists emerging in our territory of HK, Macau, Taiwan & China over time. This will upgrade the industry in all.

best regards,

Sammy Au
President (Station Manager) of ISA HK/China
Registered Consulting Arborist no. RCA#497 (
Accredited Member of the Institute of Australian Consulting Arboriculturists (
ISA Board Certified Master Arborist / Certified Tree Worker no. HK-0174BT (
Independent Practicing Arborist no. IPA-010908 (

"Providing treatment without in-depth diagnosis & research support is professional misconduct. "

"Casual tree assessor delivers wanton tree assessment. Mother Nature makes the rules."