This work has been commissioned by the
UK Department for International Development on behalf of
the Department of Water Affairs and Forestry. The target
audience include forest scientists, managers,
conservationists, regulators, and administrators
involved with indigenous forests in South Africa.
The aim of conservation planning is the selection of
priority planning units for conservation action.
Conservation is not just about preserving biodiversity,
it is also about the sustainable use of natural
resources. Many valuable forested areas in South Africa
are associated with communities who may be heavily or
partially reliant on these forest resources. In this
regard, there is an urgent need to implement the
principles of community-based natural resource
management as part of a forest conservation strategy and
action plan.
This study used both forest patches and forest clusters
as planning units. What is becoming increasingly
apparent is the critical role that conservation planning
needs to play in the maintenance of connectivity between
increasingly fragmented forest patches. The use of
forest patches as planning units has enabled important
habitat patches to be identified while the use of
clusters as planning units identified whole forested
regions as priority areas, thus emphasising the need for
planning to done at the broader landscape level.
Critical habitat units need to be evaluated not just for
their contribution to the biodiversity representivity
targets, but also for their role in maintaining natural
habitat pathways and ecological connectivity.
The planning and implementation of conservation of the
forest biome provides a unique challenge, given the
large number of administrative boundaries that fall
within the planning domain. This implies the need for
national level co-ordination and planning, specifically
entailing the setting of national conservation targets,
protected area gap analysis, and the identification of
priority forests for conservation action. National-level
planning is thus essential for providing a framework for
finer scale planning necessary at provincial and local
level, as well as facilitating integration with
bioregional and spatial development framework planning.
Never has the urgency been greater to implement
forest conservation planning. Land use pressures and
demands for forest resources are on the increase,
resulting in deforestation, degradation and
fragmentation of irreplaceable habitats.
Forests are valued for many different reasons, of
which, biodiversity is only one. Although occupying less
than 0.4% of the surface area of South Africa, forests
have the highest biodiversity per unit area of any biome
in South Africa. It is also the most vulnerable,
smallest and most fragmented biome. In addition, it is
facing escalating pressure from strip mining, coastal
and urban development, agriculture, illegal commercial
and subsistence over-harvesting.
Systematic conservation planning for the forest biome
of South Africa National government needs to play a key
role in speeding up the implementation of conservation
planning. One of the major blocks to implementation is
lack of capacity and information necessary to ensure co-ordinated
conservation action at different levels of government.
In theory, all forests are protected under the
National Forests Act No. 84 of 1998 (NFA). However, only
relatively few state forests are actually managed as
protected areas. Almost all of the national forest types
assessed fall well short of the national conservation
targets set for strict protection and, given current and
predicted levels of threat, there is an urgent need to
increase the number of (statutory) forest protected
areas in South Africa.
Forests play important roles in providing ecosystem
services such as water retention, water purification,
flood attenuation and carbon sequestration, all
necessary for maintenance of healthy environments for
human habitation. Because of this, all forests can be
considered as having ‘high conservation value’. However,
given the multiple demands on forest resources, not all
forests can be set aside for strict biodiversity
conservation.
One of the key outputs of this conservation planning
project was identification of priority forests for
conservation. This was done, independently at both the
level of forest patch and forest clusters, using
computer optimisation algorithms. Prioritisation was
based on irreplaceability, threat, and livelihood
analysis. C-plan was used for forest patch
irreplaceability analysis, while Marxan was used for
cluster analysis.
Internationally, South African forests can also claim
global importance. Despite sharing more affinities with
Afro-tropical forests, their position relative to the
Equator qualifies them as ‘temperate forests’.
Recent research has shown that South African forest have
the highest biodiversity of any temperate forested
region in the world.
Impressive as this may seem, it is unlikely to mean
much to those whose livelihoods depended on the
continual use of forests resources. In many areas forest
are considered as a ‘safety net’ for the rural poor, as
well as playing an important role in the spiritual,
cultural and herbal-medicinal systems of rural
communities. This study has realised the importance of
addressing the socioeconomic opportunities and
constrains inherent in conservation planning. While no
claim can be made to providing answers to the many
complex issues of rural poverty and conservation, the
computer tools developed will at least
provide support for informed decision making.