Lecture 2: Continuous Cover Forestry: the AFI inventory methodology and network of research stands-...

Continuous Cover Forestry: the AFI inventory methodology and network of research stands

Philippe Morgan

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Pro Silva

Association Futaie Irrégulière AFI

The AFI is an association registered in 1991 by a group of

forestry consultants, all members of Pro Silva

Aim:

To promote continuous cover forestry through the study of

stands managed to CCF principles

Setup an international network of Research stands in

irregular high forest

Improve the understanding of irregular forest

management through sylvicultural, economic and

ecological monitoring and analysis

International Seminar Series in Forest Conservation - The AFI Network of Irregular High Forest Research stands

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Geographical distribution of the AFI Network


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Kilsheelan, Tickincor, County Tipperary

Knockrath, County Wicklow Monivea, County Galway

Rahin, County Kildare

Mellory, Lackinrea, County Waterford

Lisdowney, Jenkinstown, County Kilkenny Curraghchase, County Limerick

AFI in Ireland7 Research stands2007, 2012

AFI Mensuration Protocol Research stands consist of:

• 1 or more compartments (5 to 15 ha)

• 10 or 12 permanent PPS sample plots

• Each tree is surveyed recording the bearing

and distance from the plot centre

This provides:

• Dendrometric monitoring

• Economic monitoring

• Individual increment monitoring

(150 to 200 trees)

North

Fixed angle plot

+ fixed radius plot

(R = 10 m) for

Poles & coppice + 3

regeneration sub-plots

(R = 1.5 m)

Direction of bearings

Trees counted inside the plot

(as a function of their diameter and the

distance to the plot centre at a chosen BAF)

Inventory Record Formwith the different dendrometric

variables recorded

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Compartment to be

inventoried

Permanent sample plotslaid out on a grid

Thirlmere

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Research stand n° Thirlmere Forest

Administrative area: Cumbria

Natural region: Lake District

Compartment: 21a

Area: 14.5 ha

Set-up date: 24 April 2014

Manager: Vicky Bowman

Description:The Research stand lies close to the dam in the United Utilities, Thirlmere Forest. It is a demonstration stand for the purposes of the CCFG 2014 Conference. A single Sample plot has been established to show how records are collected by using the AFI Research stand protocol.

Reasons for selection:The stand is of plantation origin with a mix of species and size classes. The stand is a managed long term retention and has been regularly thinned over the years; pockets of sporadic blow have been cleared during normal thinning operations and have contributed to an irregular horizontal spatial distribution. A good field layer and regeneration is established in pockets below gaps in the canopy. The well established larger classes of regeneration are growing into pole size material and will contribute to the growing stock within the next ten years.


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Method:Sample plots are measured using modern instruments for efficient working. The optimal team number is 3 individuals. A normal Research stand with 10 Sample plots usually takes 2 days to survey.

Equipment:400 grad compassRanging polesCallipersVertexLaser distance meterSurvey sheets or tabletSteel pegs


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3 types of AFI inventory + marteloscope


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AFI Research stand

Local research stand

Forest inventory

MarteloscopeCurraghchase 2007 & 2012 Curraghchase 2007 & 2012

Cranborne Estate 2013 Ballykilcavan 2014

Local research stand


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Kalebsberg 2013

Kalebsberg 2013NEFF, Littleton, MA 2013 NEFF, Littleton, MA 2013

AFI Forest inventory


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Marteloscope


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Lecture 2: Continuous Cover Forestry: the AFI inventory methodology and network of research stands-...

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Transcript of Lecture 2: Continuous Cover Forestry: the AFI inventory methodology and network of research stands-...