NR 326 Lecture 1 Introduction to FVM

 Active style: Try to directly influence forest stand density and health 1 “Trees grow and die with or with our management, but the number of trees on every hectare and the ratio of liv

Styles of Management

 Passive style: Let nature run its course and not decide which trees should survive or regenerate

 Active style: Try to directly influence forest stand

density and health

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“Trees grow and die with or with our management, but the number of trees on every hectare and the ratio of live trees

vs dead trees can be influenced by management” (Claralynn and Yana, 2007)

Forest Stewardship

Forest stewardship is a general approach to forest management that meets the needs of current owners but doesn't detract from or degrade the use by future generations (UC ANR)

Forest Vegetation Management

3

Sound forest stewardship is both an art and a science At its core, stewardship is the management of the

vegetation, which includes management of young and

old trees, shrubs and the herbaceous plants In the field

of forestry, vegetation management is generally called

silviculture (UC ANR)

What is silviculture?

The art and science of

controlling the establishment,

growth, composition, health,

and quality of forest and

woodlands to meet the

diverse needs and values of

landowners and society on a

sustainable basis (SAF 1998)

Objectives of Forest Vegetation Management

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Econ

omic

s

Eco logy

Society

Objectives of Forest Vegetation Management

 Any management action must be ecologically feasible

 Any management action must be conducted within all

economic constraints

 Any management action must consider the context of

the governing society

Objectives of Vietnam's forestry Development Strategy toward

2020

 To establish, manage, protect, develop and use in a sustainable

manner 16.24 million ha of land planned for forestry;

 To increase the rate of land with forests to 42-43% by 2010 and

47% by 2020;

 To ensure wide participation of all economic sectors and social

organizations in forestry development;

 To develop socio-economic, eco-environmental protection,

conservation of biodiversity and provision of environmental

services;

 To raise living standards for rural and mountainous inhabitants

and preservation of security and defense ( Decision

Cutting as a tool

 Remove competition

 Control light and species

composition

 Redistribute growth

 Restore early successional

habitat

Cutting as a tool (2)

 Reduce fuel loads

 Contain pathogens/disease

 Accelerate structural development

 Produce wood

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Silvicultural Systems

A planned series of treatments for tending, harvesting,

and re-establishing a stand (SAF 1998)

Harvesting Tending

ablishin

g

Choosing a silviculturel system

 Ensure that the silvicultural system for the area is consistent with the forest resource objectives contained in higher-level plans

Specify a silvicultural system that

 is ecologically suited to the tree species being managed in the area

 subject to higher-level plans, is capable of providing reasonable measures that promote and maintain a healthy and productive forest

 is designed to achieve a specified stand structure that considers objectives for biological diversity contained in any higher-level plan for the area under the Forest Development Plan (Silvicultural Systems Guidebook – 2)

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Choosing a silviculturel system

1 Review higher-level plans and determine stand-level

resource objectives

2 Determine general stand structural goals

3 Stratify the proposed area and collect site-specific

4 field information

5 Review and refine stand structural goals

6 Compare silvicultural system options

7.Finalize the choice of proposed silvicultural system

Silvicultural Planning’s steps

1 Determine the landowner’s objectives

2 Evaluate existing stand condition

3 Identify the options

4 Quantify the likely outcomes of each one

5 Drop unsuitable options

6 Explain the viable alternatives

7 Work with landowner to make decision

8 Implement the prescription

9 Evaluate the results

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Adaptive management

Steps 1 &

2

Steps 3 - 7

Step 8 Step 9

Step 9

STEP 10!!

Active Adaptive management

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A

B

C

D

High Grading

The removal of the most commercially valuable trees, often leaving a residual stand composed of trees of poor condition or species composition (SAF 2008)