2005年-世界发展银行全球_Pakistan___Country_Water_Resources_Assistance_Strategy_Water_Economy___Running_Dry_146页_13mb

Summary of Report No. 34081-PK: Pakistan Country Water Resources Assistance Strategy

Core Content

This report, Water Economy: Running Dry, outlines the critical challenges and strategic responses to water management in Pakistan from the World Bank. It emphasizes the need for institutional, technological, and policy reforms to address the growing water crisis in the country, which is exacerbated by population growth, climate change, and environmental degradation.

Main Challenges and Achievements

Past Challenges and Responses

• Historical Context: Pakistan is one of the world's most water-stressed countries with an average annual rainfall of under 240 mm. Its economy and population depend on the Indus River system, which receives about 180 billion cubic meters of water annually from neighboring countries, mainly from Himalayan snowmelt.
• Water Diplomacy: The Indus Waters Treaty (1960) was a major achievement, granting Pakistan perpetual rights to the waters of the Indus, Jhelum, and Chenab rivers, which account for 75% of the Indus system's flow.
• Irrigation System: The Indus Basin Irrigation System (IBIS) became the world's largest contiguous irrigation system in the 19th century, enabling agricultural development in arid regions.

Current Challenges

• Water Stress: Pakistan is already among the most water-stressed countries, and its per capita water availability is declining (Figure S5).
• No Additional Water: There is no feasible way to increase water supply significantly, and irrigation use may need to decrease to maintain adequate river flows to the delta.
• Environmental Vulnerability: Pakistan's reliance on a single river system makes it vulnerable to environmental changes. The Indus Basin's water and sediment systems are at risk due to climate change, which is causing glacial retreat and potentially reducing river flows by up to 40% in 100 years.
• Degradation of Natural Resources: Salinity and waterlogging remain major issues, with over 15 million tons of salt accumulating annually. The delta is degrading due to lack of water and silt.
• Pollution: Surface and groundwater are heavily polluted due to agricultural chemicals and inadequate sewage treatment in cities.
• Over-Extraction of Groundwater: Groundwater is being over-exploited, with declining quality and increasing depth of water tables. This has led to a need for integrated management of surface and groundwater.
• Flooding and Drainage Problems: The Indus Basin is prone to flooding due to silt buildup and embankment failures. Drainage systems are also underperforming, especially in the lower Indus Basin.
• Poor Infrastructure Maintenance: Many water infrastructure projects are in poor condition due to a lack of modern asset management plans and underinvestment in maintenance.
• Inefficient Project Implementation: There are significant inefficiencies in the implementation of water sector projects, including delays, cost overruns, and poor planning.
• Financial Unsustainability: The current funding model for water infrastructure is unsustainable, with insufficient revenue from users and overstaffed bureaucracies consuming most of the budget.

Key Issues and Required Responses

• Institutional Reforms: Modernizing water institutions is critical. This includes introducing transparency, regulation, and water entitlement systems.
• Water Productivity: Improving water use efficiency through better irrigation scheduling and practices is necessary to increase agricultural productivity and reduce water waste.
• Climate Change Adaptation: Pakistan must prepare for climate change impacts, such as glacial retreat and more erratic rainfall patterns.
• Groundwater Management: Policies are needed to balance groundwater extraction with recharge, especially given the high silt loads from the Himalayas.
• Investment in Infrastructure: There is an urgent need to invest in both new and existing infrastructure to address the "maintenance gap" and "water gap".
• Public and Private Roles: Both public and private sectors must play a role in infrastructure development, with a focus on competition and efficiency.
• Knowledge and Planning: A robust knowledge base is essential for adaptive management, but investment in this area has been minimal.
• Governance and Trust: Governance reforms are necessary to improve accountability, reduce corruption, and ensure equitable water distribution.

Strategic Recommendations

• Principled Pragmatism: Reforms should be guided by principles such as efficiency, sustainability, and equity.
• Rules for Reformers:
  • Water is different from other resources.
  • Start reforms where there is a demonstrated need.
  • Involve affected communities and provide clear information.
  • Reforms must be sequenced and prioritized.
  • Be patient and persistent.
  • Focus on low-hanging fruit first.
  • Maintain focus on the goal.
  • Avoid silver bullets.
  • Preserve existing systems while introducing new ones.
  • Ensure reforms provide returns for politicians and stakeholders.

Role of the World Bank

• Past Contributions: The World Bank has historically supported water-related projects in Pakistan, including irrigation, hydropower, and water supply and sanitation.
• New Strategy: The Bank is shifting its focus towards institutional reform, knowledge generation, and sustainable investment in water infrastructure.
• Investment Plan (2006-2010): The Bank proposes a four-pillar strategy focusing on institutional development, infrastructure investment, knowledge management, and climate adaptation.

Conclusion

Pakistan faces an urgent and multifaceted water crisis, requiring comprehensive reforms in governance, infrastructure, and water management practices. The country must transition from a "builder" to a "manager" mindset, invest in sustainable solutions, and ensure that water resources are managed efficiently and equitably. Without these changes, the water economy of Pakistan is at risk of collapse.