Wetlands of Hindu Kush Himalayas Ecosystem Functions, Services and Impacts of Climate Change Wetlands of the Hindu Kush Himalayan Region
Wetlands of Hindu Kush Himalayas Ecosystem Functions, Services and Impacts of Climate Change Wetlands of the Hindu Kush Himalayan Region
Diverse wetland types KYRGYZSTAN UZBEKISTAN – peatlands, glaciated TAJIKISTAN TURKMENISTAN lakes, springs, CHINA marshes, floodplains, Yellow R. manmade AFGANISTAN
Brahmaputra R.
PAKISTAN NEPAL Comprise 17% of the BHUTAN IRAN HKH region area BANGLADESH
INDIA MYANMAR Ecosystem Services
Regulation of hydrological regimes
9 largest Asian rivers Yellow have headwaters Indus in HAWs, Yangtze basins of Brahmaputra which Ganga support 29% of global population
Mekong Ecosystem Services (2)
Carbon sequestration
Ruoergai marshes in China store 750 million tonnes of carbon – 7.5 times the annual fossil fuel emissions of transportation sector of China Ecosystem Services (3)
• Hotspots of biodiversity
Bar headed geese use the Rourgei marshes and HAWs of Bhutan as breeding grounds
Trout River of Kashmir- High altitude wetlands are the habitats of cold water fish species Ecosystem Services (4)
• Cultural linkages and support to livelihoods
Rourgei marshes support more than 50,000 Tibetan herders
Several high altitude wetlands as Gokyo in Nepal have religious and spiritual significance , especially for Hindus and Buddhists Causes of wetland degradation
Extremely vulnerable to wide range of human and environment driven threats • Water diversions • Drainage for agriculture • Overgrazing • Climate change induced stresses Climate change in the Himalayan Region
Rapid increase in Glacial melt, which contributes 4 – 45% of the river base flows
Increased variability of flows , frequent droughts and floods
Shifts in biodiversity – vulnerability of species with restricted habitat availability
High levels of vulnerability within communities Wetlands and Climate Change
Wetlands can contribute significantly to climate change adaptation
• Regulation of hydrological regimes – storing peak flows, augmenting lean flows
• Storing carbon – peatlands
• Supporting biodiversity
Wetland degradation enhances vulnerability to climate change Wetlands within Jhelum Basin
Gangbal
Kishensar Erin
Wular
Manasbal Haigam
Badnambal Anchar Hokersar Tarsar Sheshnag Dal Marsar Nagin
References
Drainage
Glaciers
Open Forest
Moderate Dense Forest
Very Dense Forest
Scrub Kaunsarnag 300 30 Wetland Verinag Kilometers Valley Developmental Activities
1911Zalwan 2007 Zalwan
Kanibathi Kanibathi Gurihajan Nar
Zainagir Cannal Watlab Garoor Watlab a Garoor a
Mukhdomyari Mukhdomyari
Hajan
Sopore
Ningli Shahgund Hajan Malgom Gujar Nar Gund Jahangir Sopore Bod Shahgund Malgom Gund Ningli Manasbal Jahangir Haigam
Haigam Manasbal
•70% of area under marshes converted for agriculture and plantation Changes in Water Flows
Increasing glacial melt leading to higher flow volumes and early onset of high flows
Increased vulnerability due to loss of wetlands • lower moderation of peak flows • lower lean season flows due to reduced absorption capacity
800.00 Higher flow volumes -Climate 700.00 Peaking of flows, change lower moderation
600.00
500.00
1922-40 1941-60 400.00 1961-80 Lower lean season 1981-00 300.00 flows Mean monthly flows (cumecs) flows monthly Mean
200.00 Early onset of high flows
100.00
0.00 Jan Feb Mar Apr May June July August September October November December Extremities – floods and droughts
35
30
25
High Flows 20 Low Flows
15 Frequency of High and Low flow and flow years Low High of Frequency 10
5
0 1920-40 1941-60 1961-80 1981-00 Inventorization and Assessment
Poverty and marginalization of communities
50
45
40
35
30
25
20
15
10
5 % Populationliving Below PovertyLine 0 Wular State Integrating Wetlands in Climate Change Adaptation
Wetlands and River Basin Management
Headwater wetlands provide water resource Downstream wetlands functions e.g. provide local goods and • flood protection services: e.g. • low flow support •fish • agriculture • recreation
• Functioning of HAWs critical to ensure sustained provisioning of ecosystems services in the downstream reaches • Wetland conservation and wise use as alternate to structural approaches Integrating Wetlands in Climate Change Adaptation
Longitudinal Dimension • Connectivity of wetlands with river Headw aters-estuary systems critical to maintenance of Sea
their ecosystem services Riffle-pool Parapotamon-channel Freshwater-marine
Lateral Dimension
Channel-canyou Channel-ridge wall
Channel-upland Channel Source
Upland
Vertical Dimension
Aquifer Springbrook Aquifer Soil
River Aquifer Aquifer-channel
Hyporheic Zone
Aquifer-riverbed Current status of policy integration
• Sectoral approach to wetlands and water management with limited degree of integration • Role of wetlands in water management and river basin management not explicitly recognized • Water allocation strategies focused on human uses without considering ecological requirements • Focus on role of state and community institutions in management of water resources – limited role of private sector , diffused incentive mechanisms • Urgent need for action as inadequate integration enhances vulnerability of large populations and ecosystems – especially on account of climate change Himalayan Wetland Initiative
• Database methodologies on Himalayan Wetlands • Mechanisms and facilities for cooperation, networking and capacity building • Improve knowledge of climate change impacts and of adaptation responses • Devise and promote best practices on Himalayan wetlands management • Develop participatory CEPA programmes • Develop policy support for implementation of wetland conservation Thank You