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bs3998 tree work


Trees are dynamic, continually self-optimizing organisms, they maintain both their physiological functions and their structural integrity. Thus, the often massive structure of a mature tree above ground, consisting of the stem, branches, twigs, and the attached foliage, is highly efficient in intercepting, using, and storing solar energy, while also bearing its own weight and dissipating the potentially damaging forces of the wind.

Below ground, although far less obvious, the extensive root system is equally efficient both in providing anchorage and in pervading the soil in order to absorb the water and mineral nutrients that are essential for survival, growth, flowering, and fruiting.

BS 3998 on tree work gives general recommendations for tree work. It gives guidance on management options for established trees (including soil care and tree felling) and overgrown hedges.

What is BS 3998 - Tree work about?

What does BS 3998 - Tree work cover?

The principles of BS 3998 on tree work may also be applied to some shrubs, which can have similar characteristics to trees.

BS 3998 considers the impact of work on an individual tree in relation to neighbouring trees but does not cover the overall management of tree populations.

The need for tree work will sometimes become self-evident to tree owners and site managers in the course of their regular duties. Tree work ideally forms part of a planned program of management, which includes the successional planting of trees well-suited to their surroundings.

Principles for assessing the potential advantages and disadvantages of various aspects of tree work are stated, where appropriate, in BS 3998. Where work is required, it is important for clients to be aware of both the advantages and disadvantages before deciding the course of action to follow.

What are the latest updates for BS 3998 - Tree work?

BS 3998:2010 is a full revision of the standard, which has been updated and expanded to incorporate changes in the law and working practice concerning established trees, especially with regard to:

  • Safety of people and property

  • Decision-making criteria for tree work

  • Wildlife and habitats

  • Veteran trees.

BS 3998:2010 also takes account of underlying issues such as tree longevity, value for local amenity, landscape, biodiversity, and heritage.

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