2000年-世界发展银行全球_The_Republic_of_Yemen___Comprehensive_Development_Review_Environment_54页_2mb

Summary of the Comprehensive Development Review on Environment in Yemen

Core Content

This document presents a comprehensive review of environmental issues in Yemen, focusing on the interplay between environmental degradation and socio-economic development. It outlines the key environmental problems, the current institutional and legal framework for environmental management, and the proposed actions to address these challenges. The review is based on the National Environmental Action Plan (NEAP) and is a collaborative effort between the Government of Yemen and the World Bank.

Main Environmental Problems

A. Water Depletion, Pollution, and Supply

• Water Depletion: Yemen is experiencing a severe water crisis due to over-extraction of groundwater, which is currently being withdrawn at 130% of renewable resources. Groundwater levels in Sana'a are dropping by over 4 meters annually.
• Water Pollution: Shallow aquifers in urban areas are becoming increasingly polluted, and coastal aquifers are facing saline intrusion. Contamination is primarily due to industrial and residential waste, seepage, and poor infrastructure.
• Water Supply Services: Only 50% of the urban population has access to public water supply systems, and 40% of the rural population receives piped water. Water supply services are inadequate and inefficient, leading to health risks and economic losses.
• Water Scarcity: Water shortages are a critical issue, with the potential to cause major health and environmental problems. The National Water and Sanitation Authority (NWASA) has not fulfilled its mandate, and the lack of proper water management systems exacerbates the problem.

B. Land Degradation

• Land Use: About 3% of Yemen's land is suitable for agriculture, but only 1.2 million hectares are cultivated. Rangelands and forests cover 40% of the land, while 57% is desert.
• Soil Erosion: Erosion is a major issue, particularly in areas like Anas, Bani Matter, and Wadi Serbah. The degradation of terraces and unsustainable farming practices have led to loss of arable land and increased sedimentation in reservoirs.
• Deforestation: The removal of vegetation for agriculture and grazing has led to deforestation and loss of biodiversity. The collapse of terrace systems has also contributed to land degradation.
• Urban Encroachment: Rapid urbanization has resulted in the occupation of hazard-prone areas, leading to environmental degradation, loss of life, and damage to infrastructure.

C. Habitat Degradation

• Natural Habitats: Yemen's diverse ecosystems, including forests, wetlands, and coastal areas, are under threat due to human activities.
• Loss of Biodiversity: The overexploitation of biological resources has led to a major reduction in plant and animal species, including many endemic species.
• Ecotourism Management: There is a lack of effective management and awareness regarding the importance of ecological tourism and conservation.
• Coastal Threats: Urban development, overfishing, oil spills, and physical destruction of habitats (such as bottom-trawling and wood cutting) are critical threats to coastal ecosystems.

Institutional and Legal Framework

• Environmental Protection Council (EPC): The EPC is the main institution responsible for environmental protection, but it lacks effective enforcement and regulatory capacity.
• Yemen Environment Protection Fund: This fund aims to support environmental projects but faces challenges in securing sufficient resources and technical expertise.
• Legal Instruments: Yemen has ratified several international environmental conventions, including CITES, MARPOL, and UNCLOS, but has not ratified others such as the Kyoto Protocol.
• International Support: The World Bank and other international organizations have supported various environmental projects, including those related to water management and desertification control.

Environmental Actions and Programs

• Comprehensive Environmental Action Program: This program aims to address key environmental issues through integrated management and policy reforms.
• Priority Actions: These include improving water management, enhancing land use planning, and protecting natural habitats. Specific actions involve the implementation of the National Program for Desertification Control (NPDC) and the development of a more effective institutional framework.
• Legal and Policy Reforms: There is a need for stronger legal and regulatory frameworks to manage water and land resources effectively, including clearer land and water rights, better enforcement, and the integration of environmental considerations into development planning.

Key Statistics

• Population: Approximately 16 million (1997), with a growth rate of about 3.5%.
• Water Resources: Annual renewable water supply is 2,100 million cubic meters, with per capita availability at 130 cu. m. This is much lower than the global average of 7,500 cu. m. and the MENA average of 1,250 cu. m.
• Agriculture: 3% of land is used for agriculture, with 1.6 million hectares available and 1.2 million hectares cultivated.
• Infant Mortality: About 70% of infant mortality is attributed to waterborne diseases.
• Urbanization: The urban population increased from 13% to 25% between 1970 and 1997, with cities like Sana'a, Aden, and Taiz experiencing high growth rates.

Conclusion

The environmental challenges in Yemen are deeply intertwined with population growth, poverty, and institutional weaknesses. Effective management of water and land resources is crucial for sustainable development, and there is a pressing need for improved governance, enforcement, and public awareness. The NEAP and related programs provide a framework for addressing these issues, but implementation remains a challenge.