5. FOREST DIAGNOSIS: STAND, FOREST, STAND TYPING AND INVENTORY

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José Reque Kilchenmann requekch@pvs.uva.es Prof. Silviculture (University of Valladolid)

Contents: * Forestland management units

• Forest district (region) • Forest

• Stand

P1 P2 P3 P4

Pn

Pn-2 Pn-1

Pi

* Stand typing * Inventory

FOREST DIAGNOSIS: Process of examination, analysis, description and delimitation of the silvicultural opportunities, limitations and management options of a forest and/or stand

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Forestland management units Land Management unit Description

Forest district (region) • Regional forest surface with own management for the purposes of silvicultural operations and harvest operations

Example High Atlas (Morroco)

Forestland management units

Land Management unit

Surface and scale

Forest district (region) • Surface: > 104 ha • Topographic Scale:

• < 1/100.000

Example High Atlas (Morroco)

Forest Tagargoust

Forest Toufliht

Land Management unit

Description

Forest • A plant association, predominantly of trees or other woody vegetation, defined by property and/or topographic features such as uplands, plateaus, valleys

• A Forest may contain 100 or more stands

Forest Tagargoust

Forest Toufliht

Land Management unit

Surface and scale

Forest • Surface: [100 - 104 ha] • Scale : [+/- 1:10.000]

Land Management unit

Description

Stand • An aggregation of trees or other growth occupying a specific area and sufficiently uniform in species composition, size, age, arrangement, and condition as to be distinguished from the forest or other growth on adjoining areas.

1

2

3

4

5

Land Management unit Surface and scale

Stand • Surface: [1- 30 ha]; Scale: [>1:104]

1. Afforestation 2. Coppice forest 3. Shrubland 4. … 5. …

1

2

3

4

5

Land Management unit

Description

Stand • The composition, structure and ecological functions within a stand are similar enough that a forest use prescription can be applied uniformly within the stand

1

2

3

4

5

• Normally a stand will be studied or managed as a single unit.

Stand typing: Description and delimitation of forest areas that have similar conditions with respect to tree size, species mix, structure and age.

Stand typing

Normalized qualitative forest description

http://docs.qgis.org/2.14/en/docs/training_manual/forestry/updating_stands.html

Normalized qualitative forest description : Fuel model, size, browsing, erosion stage, species composition, regeneration, canopy cover, stratification…)

http://docs.qgis.org/2.14/en/docs/training_manual/forestry/updating_stands.html

http://outreach.oregonstate.edu/programs/forestry/node/300

http://docs.qgis.org/2.14/en/docs/training_manual/index.html

http://outreach.oregonstate.edu/programs/forestry/node/300

Source: www.extension.oregonstate.edu; www.uky.edu

¡Normalized description !

http://docs.qgis.org/2.14/en/docs/training_manual/forestry/stands_digitazing.html

www.silviweb.wikispaces.com

¡ G.I.S. !

Property & legislation

Background & history

Social & socioeconomic

cond.

Forest conditions

Ecological conditions

Current uses

Risks (wildfire, erosion, pests, overgrazing…)

Etc.

Goals and objectives

Technological opportunities and

limitations

Flickr (Adam Jones)

• Improve forest health • Protect against wildfires • Provide and improve wildlife habitat • Develop ponds or other water sources • Learn about or study nature • Establish new tree plantings • Enhance tree growth and quality in your forest • Hunting or fishing • Generate income from harvesting timber • Generate income from non-timber products • Generate income from recreational access and use • etc

Source: Oregon’s Forest Management Plan Guidelines July 2013

• To promote and maintain desired landscape conditions • To maintain and develop naturally reproducing forest communities • To provide economic and social benefits through a sustained yield of

forest products • To determine appropriate, sustainable timber harvest levels. • To demonstrate and promote silvicultural practices that sustain ecological

and economic forest values http://www.apps.dcnr.state.pa.us/forestry/sfrmp/silviculture.htm#guidelines

Forest inventory (cuantitative assessment) :

P1 P2

P3 P4

Pn

Pn-2

Pn-1

Pi

ex. Forest Toufliht: closed canopy, P. halepensis timber wood, even aged, soil protection afforestation. Basic variable (DBH, H0, G,…)

¡Statistical design and assessment!

http://docs.qgis.org/2.14/en/docs/training_manual/forestry/index.html

Stand = Rodal (spanish) (cf. lat. rotālis): ww.rae.es 1. m. Lugar, sitio o espacio pequeño que por alguna circunstancia particular se distingue de lo que le rodea. 2. m. Parte de una cosa con distinto color del general. 3. m. Conjunto de plantas que pueblan un terreno diferenciándolo de los colindantes.

Rodalización: Stand typing

[see also: rodeo, rodear, rodar]

5. FOREST DIAGNOSIS

www.medfor.eu

José Reque Kilchenmann requekch@pvs.uva.es Prof. Silviculture (University of Valladolid)