Book contents
- Frontmatter
- Contents
- Preface
- List of contributors
- Part I Airflow over topography and in forests
- Part II Mechanics of trees under wind loading
- Part III Tree physiological responses
- Part IV Impacts of wind on forests and ecology
- Part V Risk assessment and management response
- 21 Assessing the risk of wind damage to forests: practice and pitfalls
- 22 Forest wind damage risk assessment for environmental impact studies
- 23 Recommendations for stabilisation of Norway spruce stands based on ecological surveys
- 24 Thinning regime in stands of Norway spruce subjected to snow and wind damage
- 25 A synopsis of windthrow in British Columbia: occurrence, implications, assessement and management
- 26 Wind damage to New Zealand State plantation forests
- 27 The experience of and management strategy adopted by the Selwyn Plantation Board, New Zealand
- Index
27 - The experience of and management strategy adopted by the Selwyn Plantation Board, New Zealand
Published online by Cambridge University Press: 27 October 2009
- Frontmatter
- Contents
- Preface
- List of contributors
- Part I Airflow over topography and in forests
- Part II Mechanics of trees under wind loading
- Part III Tree physiological responses
- Part IV Impacts of wind on forests and ecology
- Part V Risk assessment and management response
- 21 Assessing the risk of wind damage to forests: practice and pitfalls
- 22 Forest wind damage risk assessment for environmental impact studies
- 23 Recommendations for stabilisation of Norway spruce stands based on ecological surveys
- 24 Thinning regime in stands of Norway spruce subjected to snow and wind damage
- 25 A synopsis of windthrow in British Columbia: occurrence, implications, assessement and management
- 26 Wind damage to New Zealand State plantation forests
- 27 The experience of and management strategy adopted by the Selwyn Plantation Board, New Zealand
- Index
Summary
Abstract
Wind damage is frequent in conifer plantations in the Canterbury Plains of New Zealand; 90% of all wood harvested has followed windthrow. Methods have been evolved to cope with this difficult situation. Forestry can now be carried out profitably so long as proper attention is paid to the location of stands and plantation layout, the selection of species, cultivation, tree spacing, planting pattern, thinning, pruning and harvesting. The methods used are described in relation to the prevailing climatic, edaphic and economic constraints.
Introduction
The Selwyn Plantation Board has managed forests on the plains of Canterbury since 1911. At present some 10000 ha of plantation forests are managed for both shelter and wood production. This chapter details the management experiences built up since 1911, and the strategies adopted in the light of that experience. This is reviewed against the background of the national and regional environment.
New Zealand
New Zealand lies in the south-west section of the Pacific, 1600 km to the east of Australia, 10000 km from Panama and San Francisco, and a similar distance from Tokyo and Singapore. The area of the country measures 26.9 x 106 ha. It is similar in size to the British Isles and to Japan. New Zealand is a long (1600 km) narrow country characterised by a ridge of mountains running down its north-northwest to south-south-east axis. In the North Island the mountains tend to be lower. However, high mountains still manage to occupy approximately 10% of the North Island surface.
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- Chapter
- Information
- Wind and Trees , pp. 468 - 476Publisher: Cambridge University PressPrint publication year: 1995
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