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QUICK NAVIGATION: Contents | Chapter 1 | Chapter 2 | Chapter 3: A B C D | Chapter 4 | Appendix 1 | Appendix 2 GOAL 2:
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| Impact economic sector | Habitat loss and fragmentation | Over-exploitation of species |
| Agriculture | Primarily through cultivation, requiring the removal of natural vegetation, and through bush encroachment | Overgrazing in parts of the country may result in certain species being over-exploited. Through over-harvesting of wildflowers |
| Biotechnology industry |
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| Chemical industry |
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| Impact economic sector | Air, water and soil pollution | Introduction of harmful alien species |
| Agriculture | Largely through the use of agrochemicals, through siltation, and from mariculture and aquaculture enterprises
Through the introduction of alien species for mariculture and aquaculture |
In some instances, through the introduction of high-yielding exotic species for cultivation or pastoral purposes |
| Biotechnology industry |
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Potential risk through the transfer, handling, use and release of genetically modified organisms |
| Chemical industry | Activities related to the chemical industry may result in air, water and soil pollution |
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| Impact economic sector | Key state institutions involved in promoting or regulating the activity | |
| Agriculture | Departments of Agriculture; Land Affairs; Environmental Affairs and Tourism. Related provincial departments; agricultural research | |
| Biotechnology industry | Departments of Agriculture; Trade and Industry; Environmental Affairs and Tourism; Health. Agricultural Research Council; CSIR | |
| Chemical industry | Departments of Trade and Industry; Environmental Affairs and Tourism; Water Affairs and Forestry; Health | |
| Impact economic sector | Habitat loss and fragmentation | Over-exploitation of species |
| Defence | Through the use of the land and sea for weapons testing and training | Over-exploitation of species in areas used for purposes of defence |
| Domestic households | Indirectly, through requiring the range of different economic services described above | Through the harvesting of certain plants and animals for food, building, fuel or medicinal purposes |
| Power generation | Through the clearing of land for the construction of infrastructure
Potentially through global warming |
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| Fisheries | Through physical damage to habitat from certain fishing gear | Over-exploitation of target and non-target species, with ramifications for other species and supporting ecosystems |
| Impact economic sector | Air, water and soil pollution | Introduction of harmful alien species |
| Defence | Through the production and use of various weapons |
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| Domestic households | Through the generation of sewage and household waste, as well as pollutants associated with cooking and heating | Through the use of harmful alien species in gardens |
| Power generation | Air, water and soil pollution through the burning of coal and related processes, and the generation of waste from the nuclear industry |
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| Fisheries | From mariculture and aquaculture enterprises, as well as from fishing gear | Through the introduction of alien species for mariculture and aquaculture |
| Impact economic sector | Key state institutions involved in promoting or regulating the activity | |
| Defence | South African National Defence Force
Department of Environmental Affairs and Tourism; South African Police Services |
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| Domestic households | Broad range of national, provincial and local government departments | |
| Power generation | Departments of Minerals and Energy; Water Affairs and Forestry; Trade and Industry; Public Enterprise; Health; Environmental Affairs and Tourism
Eskom |
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| Fisheries | Directorate Sea Fisheries (Department of Environmental Affairs and Tourism); provincial departments of nature conservation | |
| Impact economic sector | Habitat loss and fragmentation | Over-exploitation of species |
| Forestry9 | Through afforestation, which involves the replacement of natural vegetation | Over-exploitation of both commercial and subsistence levels of certain woodland species in parts of the country |
| Housing and infrastructure | Through the clearing of land for development | May occur through the over-use of indigenous plants for building materials |
| Mining industry | Through the clearing of land and disturbance of marine and coastal habitats for prospecting and mining activities. The abstraction of water may impact on wetland systems |
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| Impact economic sector | Air, water and soil pollution | Introduction of harmful alien species |
| Forestry9 | Through, inter alia, the pulp and paper industry and the use of agrochemicals | In some instances, through the introduction of high-yielding exotic species for commercial forestry and recreational purposes |
| Housing and infrastructure | May occur from construction activities | Through the use of harmful alien species in gardens and parks |
| Mining industry | Activities related to the mining industry may result in water, air and soil pollution. Up to 80% of total solid waste generated in the country arises from the mining industry |
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| Impact economic sector | Key state institutions involved in promoting or regulating the activity | |
| Forestry9 | Departments of Water Affairs and Forestry; Environmental Affairs and Tourism; Safcol | |
| Housing and infrastructure | Departments of Housing; provincial departments of housing; other relevant provincial and local government departments | |
| Mining industry | Departments of Minerals and Energy; Water Affairs and Forestry; Trade and Industry; Environmental Affairs and Tourism; Health | |
| Impact economic sector | Habitat loss and fragmentation | Exploitation of species |
| Tourism and recreation | Through the construction of tourist-related facilities, particularly along the coast. Through exceeding the tourist-carrying capacity in certain areas. Through impact of off-road vehicles | Through recreational fishing and the over-exploitation of "collectable" species |
| Trade |
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Over-exploitation of species in demand for medicinal or wildlife trade purposes |
| Transport | Through road and rail construction and shipping-related activities |
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| Water | Through dam construction, and water-transfer schemes |
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| Impact economic sector | Air, water and soil pollution | Introduction of harmful alien species |
| Tourism and recreation | Through litter, principally plastic waste | Through the introduction of exotic fish species for angling |
| Trade | Through trade in chemicals and other harmful substances | Through the unintentional introduction of harmful alien species |
| Transport | Air, water and soil pollution through road, rail, air and sea | Through the unintentional introduction of alien species through road, rail, air and sea |
| Water | Through excessive removal of water from watercourses and the consequent concentration of pollutants | Through inter-basin transfer schemes which unintentionally introduce alien species |
| Impact economic sector | Key state institutions involved in promoting or regulating the activity | |
| Tourism and recreation | Department of Environmental Affairs and Tourism; Satour; National Parks Board; provincial departments of environment and tourism; and nature conservation agencies | |
| Trade | Departments of Trade and Industry; Environmental Affairs and Tourism; Health; South African Police Services; related provincial departments | |
| Transport | Departments of Transport; Environmental Affairs and Tourism; Health; Trade and Industry | |
| Water | Departments of Water Affairs and Forestry; Environmental Affairs and Tourism; Health | |
Policy objective 2.1.
Integrate the conservation and sustainable use of biological diversity into all sectoral and cross-sectoral plans, programmes and policies at all levels of government and industry.
Policy and Strategy
Government recognises that to achieve the goal of using biological resources sustainably and minimising adverse impacts on biodiversity, considerations about biodiversity must be integrated into all spheres of national, provincial and local decision-making, both within and across different sectors. This is a key objective of the biodiversity policy, as well as being an integral part of the development of general national environmental policy.
To achieve this objective, Government, in collaboration with interested and affected parties, will:
Policy objective 2.2.
Conserve and use sustainably biological resources in terrestrial, aquatic and marine and coastal areas and avoid or minimise adverse impacts on the biodiversity of such areas.
2.2.1. Common approaches
Policy and Strategy
Ensuring the conservation and sustainable use of terrestrial, aquatic, and marine and coastal areas, and minimising adverse impacts on the biodiversity of such areas will require several common approaches to be adopted.
For terrestrial, aquatic, and marine and coastal areas, Government, in collaboration with interested and affected parties, will:
2.2.2. Terrestrial areas
Terrestrial Biodiversity in South Africa
The transformation of South Africa's terrestrial areas is perhaps the most visibly dramatic evidence of the loss of biodiversity in the country. Comprehensive estimates are not available concerning the extent to which terrestrial areas have been modified, although a conservative assessment is that at least 25% of the land has been transformed for purposes of cultivation or afforestation, for urban or industrial development, or to enable roads, railways and dams to be built. Areas which are not developed may be subject to overgrazing, to infestation by alien plants and animals, or to the overexploitation of certain species for subsistence or trade purposes.
There are seven major terrestrial biomes, or habitat types, in South Africa: forest, fynbos, grassland, Nama karoo, succulent karoo, savanna, and thicket (see Tables IV and V). These biomes can in turn be divided into 68 vegetation types, which are communities which share common species, have similar vegetation structures, and share the same set of ecological processes. The degree to which each of these biomes is threatened varies, depending upon the fertility of the soil, the economic value derived from use of the area, human population pressures, and the extent to which the biome is conserved in protected areas. The grassland biome, for example, is the mainstay of dairy, beef, and wool production in South Africa and of crops such as maize. It is also poorly represented in protected areas. Similarly much of the Renosterveld, which is part of the fynbos biome, has been ploughed for agriculture, and is also no represented adequately in protected areas. Urgent conservation action is also needed for the Nama karoo, succulent karoo, and thicket biomes.
Policy and Strategy
The loss of biodiversity in terrestrial areas of South Africa is considered by Government to be a matter of grave concern, requiring urgent action by diverse sectors at many different levels. Government recognises the important role played by involved sectors in the economic development of the country, but believes that opportunities exist, through conserving and using biological resources sustainably, to optimise both conservation and development benefits, and to minimise the adverse impacts of various activities on terrestrial biodiversity.
To achieve this objective, Government, in collaboration with interested and affected parties, will:
Figure 5: The Species Richness of South Africa's Terrestrial Areas10
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Number of species
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| Province |
Biome
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Plant
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Mammal
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Bird
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Amphibian
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Reptile
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| Eastern Cape |
7
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6 164
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156
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384
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51
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57
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| Free State |
3
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2 984
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93
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334
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29
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47
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| Gauteng |
2
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3 303
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125
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326
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25
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53
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| KwaZulu-Natal |
4
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6 141
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177
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462
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68
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86
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| Mpumalanga |
3
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4 782
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160
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464
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48
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82
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| North-West |
2
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3 025
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138
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384
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27
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59
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| Northern Cape |
6
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5 067
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139
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302
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29
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53
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| Northern Province |
3
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4 236
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239
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479
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44
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89
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| Western Cape |
6
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8 925
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153
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305
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39
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52
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2.2.3. Aquatic areas and wetlands
What are Wetlands?
Many of the adverse impacts of human activities on biodiversity manifest themselves most strongly in the wetlands of South Africa. In terms of the Convention on Wetlands of International Importance especially as Waterfowl Habitat (Ramsar Convention) these include "areas of marsh, fen, peatland or water, whether natural or artificial permanent or temporary, with water that is static or flowing, fresh, brackish or salty, including areas of marine water the depth of which does not exceed six metres". Therefore wetlands include riverine, lake, mash, estuarine, and marine systems. Wetlands play a crucial role in terms of providing clean water, maintaining biodiversity, protecting areas against floods, recharging aquifers, buffering against toxins, and providing areas for recreation, education and research.
Freshwater Systems in South Africa
Adverse impacts on freshwater systems are of critical concern given both the scarcity of and increased demand for water in the region. The flow of almost every river system has been regulated by storage dams, or by structures associated with the inter-basin transfer of water. Salinisation, eutrophication, and pollution by heavy metals, mine dump effluents, pesticides, insecticides and herbicides have considerably reduced both surface- and ground-water quality. Catchment changes through afforestation, alien plant invasion, irrigation and over-abstraction, and human settlement have reduced natural run-off and groundwater levels substantially, and invasive plants and animals jeopardise indigenous wildlife on a national scale. Moreover, wetlands such as mashes, bogs and floodplains have undergone considerable alteration and degradation: through drainage for crop and timber cultivation; infilling for urban and industrial development and waste disposal mining for the extraction of sand, clay and peat; as well as through a range of other activities.
Although there is a lack of information concerning wetland losses in South Africa, that evidence which does exist suggests clearly that the loss of wetlands has been high, with loss appearing to be greatest in the coastal and inland margin zones of the country. In the Mfolozi catchment, for example, some 58% of the original wetland area is estimated to have been lost.
South African Estuaries
Estuarine areas, as the interface between rivers and the sea, include some of the most productive and threatened ecosystems in South Africa. Sustaining a rich abundance of fish, bird, and invertebrate species, and habitats such as mangroves, seagrass beds, and saltmarshes, estuaries provide important nursery grounds for marine fish, sustain several fisheries, control flood events, provide a rich feeding ground for birds, and are a necessary component for the life-cycle of many invertebrate species.
The ecological functioning of estuarine ecosystems is critically dependent upon the complex and dynamic interplay between rivers and the sea, a factor which increases the vulnerability of such environments to changes both within catchments and in the sea. Activities having far-reaching effects on estuarine ecosystems include excessive water abstraction, resulting in a reduction of freshwater to estuaries; agricultural practices that lead to increased soil erosion and thus silt deposition in estuaries; urban or industrial development adjacent to estuaries; modifications to river and tidal flows through floodplain development and the construction of bridges, harbours, and dams; and pollution resulting from the diversity of activities occurring in catchments.
Policy and Strategy
The degradation of South African wetlands, and their vulnerability to human-induced changes in catchments and in the sea, is a concern recognised by Government as requiring urgent action and cooperation between a diversity of sectors and institutions. Wetlands represent some of our most threatened ecosystems, and as such their conservation and sustainable use is a crucial component of this policy. Government acknowledges that insufficient attention has been given in the past to secure the effective management of the country's wetlands, and it undertakes to ensure that the future management of such areas will take place in an integrated manner, in accordance with the objective of conserving and using biological resources sustainably, and minimising adverse impacts on aquatic biodiversity. This approach will recognise and accommodate conflicting needs and values.
Several measures already govern the conservation and use of South Africa's wetlands, and many new initiatives are under way, as a result of the revision of the country's water law. Wherever possible and appropriate, Government will bolster such initiatives and, in collaboration with interested and affected parties, will:
2.2.4. Marine and coastal areas
Marine and Coastal Areas in South Africa
Marine and coastal areas contain a significant amount of South Africa's biological diversity, and in addition to providing essential ecosystem services such as climate regulation, are of importance to the South African economy with regard to the fishing industry, mineral, oil and gas exploitation, tourism, recreation, trade and transport opportunities.
Biodiversity conservation has historically focussed on the terrestrial environment, and while there are common principles for the conservation of terrestrial and marine biodiversity, there are also several characteristics of the marine and coastal environment that present decision-makers and resource managers with a unique set of problems. For example, within the Exclusive Economic Zone, marine resources fall under national ownership, but not in oceanic waters outside of this area; the fact that species straddle or migrate across political boundaries; the "invisibility" of marine, coastal and other aquatic environments, which makes research and monitoring particularly difficult; and the environmental continuity of the oceans, meaning that local impacts may have global effects. Adding complexity to this situation is the fact that aquatic organisms - primarily fish - are the only major human food resource harvested directly from wild populations.
Despite these differences, the threats to marine and particularly to coastal biodiversity are similar in many respects to those facing biodiversity on land, with most threats originating from land-based activities. In South Africa such threats include marine pollution, from domestic sewage, industrial waste, stormwater drains, and oil spills; coastal zone degradation, from rapid urbanisation, tourism, recreation, infrastructural development, and mining on parts of the coast and in the ocean; the overexploitation of marine resources, primarily by industrial fisheries, but also by recreational fishers, and in some intertidal areas, by subsistence communities; and the introduction of alien species, either inadvertently through ballast water or on ship hulls, or intentionally through activities such as mariculture.
Policy and Strategy
South Africa's marine and coastal areas are considered by Government to be an asset of unsurpassed value, requiring careful and effective management to secure lasting benefits for the nation. Several processes are currently underway which support this commitment, including the development of national policies on coastal zone management, and on marine fisheries. Government believes that if marine biodiversity is to be conserved effectively and used sustainably, it is necessary to adopt a cross-sectoral approach which embraces the need for wide-ranging, comprehensive, transboundary responses to threats; which treats the entire hydrological cycle as an integrated unit; and which governs actions on land as well as in the sea. This approach will be the departure point from which a more detailed strategy is pursued.
In this context, and to achieve the objective, Government, in collaboration with interested and affected parties, will:
Policy objective 2.3.
Integrate biodiversity considerations into land-use planning procedures and environmental assessments.
Land-Use Planning and Environmental Assessment in South Africa
Biodiversity is often adversely affected by planning and development decisions and actions. This may be through a failure to incorporate biodiversity considerations into physical planning documents, such a regional plans and structure plans; through inadequate information and misguided decisions; or because of inappropriate policies. South Africa's history of environmental planning is particularly poor.
These concerns are well recognised in South Africa, and have resulted in the development of a procedure known as Integrated Environmental Management (IEM), a process designed to incorporate the environmental considerations of development proposals within the planning process. Environmental impact assessment (EIA) is a step within the EM procedure, and by international standards, the EIA strategy employed in South Africa is relatively sophisticated. It is holistic and embraces both big-physical and social considerations; requires public participation; provides for the inclusion of environmental concerns early in the planning process; calls for alternative proposals to be considered; and continues through to monitoring, auditing and decommissioning. To this end, EM is a useful tool for minimising the adverse impacts of development on biodiversity.
Despite the sophistication of EIA and IEM procedures in South Africa, there are few legal requirements for their use. Although EIAs are commonly undertaken for large-scale developments, this is on a voluntary rather than a legal basis. One exception, however, is the mining industry, which in terms of the Minerals Act 50 of 1991, is required to operate with approved environmental management programmes.
Many argue that EM procedures are too complex and costly, and overlap with existing planning procedures and permit requirements. Skeptics of the present system also point out that EIAs are severely compromised by being funded and having their terms of reference set by the project proponent. Ideally, EIAs would be mandatory, and as independent as possible. Of concern for biodiversity conservation is the fact that EIAs are often project-based, fail to consider cumulative environmental impacts within the bioregion, and take a piecemeal approach when considering impacts on biodiversity. To overcome these concerns many argue that EIAs should be undertaken not only for projects, but for programmes and policies, and should improve integration between the varied biological assessments often undertaken for a single project.
Policy and Strategy
Government is well aware of the need to review land-use planning and environmental assessment procedures in South Africa. The Department of Environmental Affairs and Tourism has recently published draft regulations concerning the control of activities which may have a detrimental effect on the environment, as well as guidelines for producing comprehensive environmental impact reports. The effectiveness of existing planning controls and the IEM process is also being investigated by the national process to determine a general environmental policy for South Africa.
These initiatives will continue to be supported by Government which, in collaboration with relevant interested and affected parties will:
Policy objective 2.4.
Support efforts to stabilise human population and reduce resource consumption to achieve socially and ecologically sustainable development.
Addressing Population and Consumption Issues in South Africa
The preceding steps to achieve the conservation and sustainable use of biodiversity, and to minimise the adverse impacts of activities are necessary, but not sufficient, to address the loss of biodiversity in South Africa. Underpinning the crisis is a complex array of inter-related social, economic, political and demographic factors. These include institutional failures to regulate the use of biological resources; economic systems that fail to recognise the true value of biodiversity; inequity in the ownership, management and flow of benefits from the conservation and use of biological resources; high levels of poverty; and a lack of knowledge about the way in which natural systems function.
Ultimately, however, human impacts on biodiversity depend upon two key factors: the number of people using natural resources; and the rates at which they consume those resources. Increasing human populations and unsustainable rates of resource consumption both lead to a growth in demand for natural resources, and therefore an increase in the impact on biodiversity. Because the natural resource base is limited, it is important to consider ways in which a balance can be struck between the use of resources, and the capacity of ecological systems to renew resources and to absorb wastes.
Population is an important issue in South Africa, but needs to be considered together with questions about resource use, particularly patterns of production and consumption. Global figures indicate that 77% of the world's people earn 15% of total income; that 24% of the world's population consume 75% of energy, mineral and metal resources, and more than half the world's food; and that over 90% of waste in the world is generated by the affluent. Similar figures are not available for South Africa but what is clear is that people's use of resources is very uneven, and that consumption is highest amongst the industrial sector and the more affluent. Strategies thus need to address not only the stabilisation of population growth, but also the wasteful overconsumption of natural resources.
Policy and Strategy
In collaboration with interested and affected parties, Government will: