- China is constructing a new dam on the Mabja Zangbo river in Tibet, close to the tri-junction which is a matter of concern for both India and Nepal.
- The new dam is located around 16 km north of the tri-junction and is opposite the Kalapani area of Uttarakhand.
- The Mabja Zangbo river originates in Nagari county of Tibet and flows through Nepal into the Ghaghara River before joining the Ganga in India.
- China’s upstream actions like dams (on Brahmaputra, Indus, tributaries of the Ganga), diversion of water, hydropolitics, and power asymmetry poses a security threat to India and water scarcity downstream.
- There is no legally binding international treaty on water sharing between India and China.
- Under CPEC, China plans to build two mega-dams on the Indus, named Bunji Dam and Bhasha Dam.
- In 2021, China announced that it would construct a massive dam on the lower reaches of Yarlung Zangbo (also known as Brahmaputra) to generate up to 70 GW of power, three times that of the country’s Three Gorges dam, which is the world’s largest hydropower plant in terms of installed capacity.
What is Hydropolitics
Impact of Building Dams on India
- Used as a tool in Hydropolitics: China is a critical player in the hydro-politics of the region. Its hydrological position is one of complete upper riparian supremacy giving it enormous latitude in shaping larger political equations with its riparian neighbours.
- India is an upper, middle, and lower riparian. India’s middle riparian position increases its dependency (water insecurity) on the headwaters of the rivers such as the Indus, Sutlej, and Brahmaputra which originate in the Tibetan plateau.
- China wants to maintain continuous pressure on India be it all along the Himalayan range or the Indian Ocean region through building dams alongside border areas.
- India and its Neighbourhood: China was one of the three countries that did not approve of the 1997 UN Convention on the Law of the Non-Navigational Uses of International Waterways.
- China has built eleven mega-dams on the Mekong River, causing water levels there to fluctuate widely without prior notice in Myanmar, Laos, Thailand, Cambodia, and Vietnam.
- Impact on earlier signed Treaty: Treaties have been signed to provide definite amount of water to lower riparian states like the 1960 Indus Water Treaty with Pakistan and the 1996 Ganga Treaty with Bangladesh.
- Military threat to India from Border Infrastructure: China’s rapid build-up of infrastructure along the Line of Actual Control (LAC) with India is alarming and adds to overall destabilising and corrosive behaviour along the entire India-China border.
- The satellite images of the dam on Mabja Zangbo river shows the formation of an embankment type dam with a reservoir leading to a possibility of military establishment by China near the tri-junction already witnessed from Yarlung Zangbo dam.
- From the multiple intrusions into Indian territory in eastern Ladakh, China has assiduously built and consolidated its military positions and border infrastructure along LAC as well upgraded its air bases facing India. E.g., China construction of a bridge across Pangong Tso in Khurnak Fort Area.
- Impact on people lives Downstream: China projects alongside Brahmaputra will impact lower riparian states local economy and ecology due to future plans of water diversion and dam projects.
- China’s construction of hydroelectricity dams in ecologically and seismically active areas shows reassertion of its aggressive ‘supply-side hydraulic’ approach of increasing storage capacity by building dams and reservoirs.
- These steps can impact food and water security needs of people living in low riparian regions as well increase disaster risk.
- Water Resources of North-East: Even running of the river hydroelectric dams can reduce water flow downstream, especially during the dry season.
- India is also worried about the release of water during the monsoons, when north-eastern states such as Assam experience ?oods.
- Several species of ?ora and fauna are endemic to the North-East part of India and some of them are critically endangered. The ecosystem in the Himalayan region is already on the decline.
- Seismological Impact: The Himalayan region is vulnerable to earthquakes and other seismic activities. The sheer size of the infrastructure projects undertaken there poses a signi?cant threat to the populations living downstream.
- Chins building hydrological projects along geographical fault lines. E.g., Projects on Yarlung Zangbo river are along the collision boundary of Indian plate and Eurasian plate.
- The glaciers have been retreating due to climate change. Deforestation, soil erosion and landslides are some of the other issues.
- Water as a Weapon during Standoff: Being an upstream area, China has a clear advantage in building dams and other infrastructure to store or divert the ?ow of the river system.
- There is the potential to signi?cantly change the ?ow rate during times of stando? between the countries.
- During the 2017 Doklam border stando? between India and China, China stopped communication of water ?ow levels from its dams.
- By terming water resources in Tibet as a ‘commons’, India can draw international attention. China should be pressurized to reconsider signing of 1996 UN Convention on Non- Navigation Use of Water which requires watercourse states to cooperate on the equitable and reasonable use and management of international watercourses.
- India needs to strengthen agreements with China that require the latter to share hydrological data of the river during monsoon season between May and October to alert downstream areas in the event of ?oods.
- India to articulate its middle riparian position, first to change the perception in the neighbourhood that India is a ‘water hegemon’.
- India to draw China into the South Asian water equation through a multi-lateral basin approach, thereby sensitising China to downstream concerns and upstream responsibilities.
- Water Treaty on lines of Indus and Ganga Treaty need to be devised with China for rivers originating from Tibet region.
- India should initiate a lower riparian coalition, stretching from the Ganga Brahmaputra Meghna basin to the Mekong, in order to draw China into a water dialogue.
- Tibet has an essential influence over Asia, providing sustenance to some of the world’s most productive agricultural zones, so it is the collective responsibility of all riparian states to preserve the ecology of this region.
Source- The Hindu